diff --git a/ASSEMBLY_NOTES.md b/ASSEMBLY_NOTES.md new file mode 100644 index 0000000..f9b2259 --- /dev/null +++ b/ASSEMBLY_NOTES.md @@ -0,0 +1,362 @@ +# Assembly Notes - V3S Stepper Hardware with Purple Drivers + +## Overview +This document provides assembly notes, lessons learned, and best practices for assembling the V3S robot boards with purple stepper motor drivers. + +**Reference:** Issue #2 - Electronics with purple driver Assembly + +--- + +## Assembly Sequence + +### 1. Small SMD Components +**Order of Assembly:** +1. Resistors (smallest first) +2. Capacitors (smallest first) +3. Diodes and LEDs +4. ICs and integrated circuits + +**Best Practices:** +- Use magnification for small components +- Apply solder paste evenly +- Use stencil if available for consistent application +- Verify component orientation before reflow +- Check polarity markings carefully + +**Common Issues:** +- Tombstoning (component standing on one end) +- Component shifting during reflow +- Incorrect polarity on polarized components +- Solder bridges between pads + +**Solutions:** +- Apply even heat during reflow +- Use proper solder paste amount +- Double-check orientation before heating +- Use solder wick or braid to remove bridges + +--- + +### 2. LDO (Linear Dropout Regulator) +**Assembly Notes:** +- Verify part number before soldering +- Check thermal pad requirements +- Ensure adequate solder on thermal pad for heat dissipation +- Verify input/output pin identification + +**Critical Checks:** +- Orientation (tab position) +- Pin alignment +- Thermal connection to PCB +- Solder joints quality + +**Testing:** +- Measure input voltage +- Measure output voltage (should match specification) +- Check for excessive heat during operation +- Verify current capacity + +--- + +### 3. Through-Hole Components +**Assembly Order:** +1. Connectors (lowest profile first) +2. Stepper motor drivers (if through-hole) +3. Terminal blocks +4. Headers and pins +5. Large capacitors +6. Any mechanical mounting components + +**Best Practices:** +- Insert components from one side, solder from other +- Use proper support/fixture to keep board flat +- Trim leads after soldering +- Check for adequate solder flow through holes + +**Purple Stepper Driver Installation:** +- Verify driver orientation (check pin 1 marking) +- Ensure all pins are straight before insertion +- Fully seat the driver (no gaps) +- Solder with adequate heat (avoid cold joints) +- Check for solder bridges between pins + +--- + +## Purple Stepper Driver Specific Notes + +### Driver Identification +- **Color:** Purple PCB +- **Type:** [TO BE DOCUMENTED] +- **Manufacturer:** [TO BE DOCUMENTED] +- **Model:** [TO BE DOCUMENTED] + +### Key Differences from Red Drivers +*To be documented after comparison:* +- [ ] Pin configuration differences +- [ ] Voltage rating differences +- [ ] Current capacity differences +- [ ] Physical dimensions +- [ ] Mounting requirements + +### Installation Steps +1. Check driver orientation (refer to marking on PCB and driver) +2. Verify pin count and spacing +3. Insert carefully to avoid bent pins +4. Ensure driver is fully seated +5. Solder all pins with good thermal contact +6. Inspect for solder bridges +7. Clean flux residue if required + +### Post-Installation Checks +- [ ] Visual inspection of all solder joints +- [ ] Continuity test on power pins +- [ ] No shorts between adjacent pins +- [ ] Driver is firmly mounted +- [ ] Heatsink attached if required + +--- + +## Soldering Techniques + +### For SMD Components +**Reflow Method (if using oven/hot plate):** +- Preheat board to ~150°C +- Ramp to peak temperature (check solder paste spec) +- Hold at peak for appropriate time +- Cool down gradually + +**Hand Soldering Method:** +- Use fine tip soldering iron (chisel or pointed) +- Temperature: 300-350°C (depending on component) +- Apply iron and solder simultaneously +- Use flux for better flow +- Clean tip frequently + +### For Through-Hole Components +- Temperature: 350-400°C +- Heat both pad and component lead +- Apply solder to joint (not iron) +- Form proper solder fillet +- Avoid excessive solder + +--- + +## Quality Checks + +### Visual Inspection Checklist +- [ ] All components present and in correct location +- [ ] Correct component orientation (check polarity) +- [ ] No solder bridges between pads/pins +- [ ] Adequate solder on all joints +- [ ] No cold solder joints (dull, grainy appearance) +- [ ] No lifted pads or traces +- [ ] No flux residue (if no-clean flux not used) +- [ ] All component values match BOM + +### Electrical Testing +1. **Pre-Power Checks:** + - [ ] No shorts between power and ground + - [ ] Continuity on power rails + - [ ] No unexpected connections + +2. **Initial Power-On:** + - [ ] Apply power with current limit + - [ ] Monitor current draw + - [ ] Check for hot components + - [ ] Verify regulated voltages + +3. **Functional Testing:** + - [ ] Stepper driver enable/disable + - [ ] Motor movement in both directions + - [ ] Microstepping operation + - [ ] Current regulation + - [ ] No abnormal noise or vibration + +--- + +## Rework and Repair + +### Common Issues and Fixes + +#### Issue: Solder Bridge +**Fix:** +- Apply flux to the bridge +- Heat with soldering iron +- Use solder wick to absorb excess +- Clean with isopropyl alcohol + +#### Issue: Cold Solder Joint +**Fix:** +- Add flux +- Reheat joint properly +- Add small amount of fresh solder if needed +- Ensure proper wetting + +#### Issue: Component Wrong Orientation +**Fix:** +- Heat all joints simultaneously if possible +- Carefully lift component with tweezers +- Clean pads +- Re-apply solder paste/flux +- Install component correctly +- Resolder + +#### Issue: Damaged Pad +**Fix:** +- Clean area +- Apply solder mask if available +- Create new pad with copper tape if necessary +- Use wire jumper if needed +- Test continuity + +--- + +## Safety Considerations + +### Soldering Safety +- Work in well-ventilated area +- Use fume extractor if available +- Wear safety glasses +- Keep soldering iron in stand when not in use +- Disconnect power when not in use + +### ESD (Electrostatic Discharge) Protection +- Use ESD-safe workstation +- Wear ESD wrist strap connected to ground +- Store sensitive components in ESD bags +- Avoid synthetic clothing +- Use ESD-safe tools + +### Handling Purple Stepper Drivers +- These components may be ESD-sensitive +- Handle by edges only +- Don't touch pins/pads directly +- Keep in anti-static packaging until installation + +--- + +## Tools and Materials Required + +### Essential Tools +- Soldering iron with temperature control +- Solder (lead or lead-free, as appropriate) +- Flux (liquid or paste) +- Tweezers (ESD-safe) +- Solder wick/braid +- Multimeter +- Magnifying glass or microscope +- Hot air station (for SMD rework) + +### Optional Tools +- Reflow oven or hot plate +- Solder paste and stencil +- PCB holder/fixture +- Inspection camera +- Oscilloscope (for advanced testing) + +### Materials +- Isopropyl alcohol (for cleaning) +- Lint-free wipes +- Anti-static bags +- Thermal paste (if heatsinks required) +- Wire for jumpers (if needed) + +--- + +## Documentation and Tracking + +### Assembly Records +For each board assembled, record: +- Date of assembly +- Board serial number (if applicable) +- Batch/lot numbers of components used +- Any deviations from standard assembly +- Test results +- Issues encountered and resolutions + +### Lessons Learned +*(To be updated as assembly experience grows)* + +1. **Purple Driver Specific:** + - [To be documented] + +2. **SMD Assembly:** + - [To be documented] + +3. **Through-Hole Assembly:** + - [To be documented] + +4. **Testing and QA:** + - [To be documented] + +--- + +## Troubleshooting Guide + +### Board Won't Power On +- Check power supply connection +- Verify no short between power and ground +- Check LDO solder joints +- Verify input voltage is correct +- Check for reversed polarity components + +### Stepper Drivers Not Working +- Verify driver orientation +- Check power supply to driver +- Verify logic signal connections +- Test enable pin +- Check for solder bridges on pins +- Measure voltage on driver power pins + +### Excessive Heat +- Check for short circuits +- Verify current settings +- Check thermal connection to PCB +- Verify adequate ventilation +- Check trace current capacity + +### Intermittent Issues +- Check for cold solder joints +- Verify all connections +- Check for loose components +- Test under vibration (if applicable) +- Check connector integrity + +--- + +## References + +### Related Documents +- [KICAD_ISSUES.md](./KICAD_ISSUES.md) - Known issues and tracking +- [CHANGES_NEEDED.md](./CHANGES_NEEDED.md) - Required KiCad changes +- README.md - Project overview + +### External Resources +- Purple Stepper Driver Datasheet: [TO BE ADDED] +- PCB Soldering Standards (IPC-A-610) +- Component Manufacturer Guidelines +- Motor Control Best Practices + +--- + +## Revision History + +| Version | Date | Changes | Author | +|---------|------------|---------|--------| +| 1.0 | 2026-02-07 | Initial document creation | Copilot | + +--- + +## Contact and Support + +For questions or issues during assembly: +- Open an issue on GitHub repository +- Reference Issue #2 for purple driver assembly +- Include photos of any problems encountered +- Provide detailed description of symptoms + +--- + +**Last Updated:** 2026-02-07 + +**Status:** Living document - will be updated as more assembly experience is gained diff --git a/CHANGES_NEEDED.md b/CHANGES_NEEDED.md new file mode 100644 index 0000000..4c2f7e9 --- /dev/null +++ b/CHANGES_NEEDED.md @@ -0,0 +1,262 @@ +# Required Changes to KiCad Project + +## Purpose +This document outlines the specific changes that need to be made to the KiCad project files to address issues discovered during the purple stepper motor driver assembly process. + +--- + +## Schematic Changes + +### 1. Stepper Motor Driver Update +**File:** `*.kicad_sch` (main schematic) + +**Changes Required:** +- [ ] Replace red stepper driver symbol with purple driver symbol +- [ ] Update component reference (e.g., U1, U2, etc.) +- [ ] Verify pin numbering and functionality +- [ ] Update component value/part number +- [ ] Check and update power pins (VCC, GND, motor power) +- [ ] Verify control signal pins (STEP, DIR, ENABLE) + +**Purple Driver Specifications to Verify:** +``` +- Operating Voltage: [TO BE DETERMINED] +- Logic Voltage: [TO BE DETERMINED] +- Maximum Current: [TO BE DETERMINED] +- Microstepping: [TO BE DETERMINED] +- Package Type: [TO BE DETERMINED] +``` + +### 2. Power Supply Section +**Changes Required:** +- [ ] Verify LDO component can handle purple driver current requirements +- [ ] Check input/output capacitor values +- [ ] Verify voltage ratings of all power supply components +- [ ] Update power supply schematic notes + +### 3. Decoupling Capacitors +**Changes Required:** +- [ ] Verify decoupling capacitor values near stepper drivers +- [ ] Check capacitor voltage ratings +- [ ] Ensure adequate bulk capacitance for motor current spikes +- [ ] Add additional capacitors if needed + +--- + +## PCB Layout Changes + +### 1. Footprint Updates +**File:** `*.kicad_pcb` + +**Changes Required:** +- [ ] Verify stepper driver footprint matches purple driver package +- [ ] Check pad sizes and shapes +- [ ] Verify hole sizes for through-hole components +- [ ] Update footprint library references + +### 2. Power Trace Width +**Changes Required:** +- [ ] Calculate required trace width for motor current +- [ ] Measure existing power trace widths +- [ ] Widen traces if necessary to handle current safely +- [ ] Verify ground plane adequacy + +**Trace Width Calculations:** +``` +For [X] Amps current: +- Minimum trace width (1oz copper): [TO BE CALCULATED] +- Recommended trace width with margin: [TO BE CALCULATED] +- Current trace width: [TO BE MEASURED] +``` + +### 3. Thermal Management +**Changes Required:** +- [ ] Add thermal vias under stepper drivers if needed +- [ ] Verify copper pour areas for heat dissipation +- [ ] Check clearances for airflow +- [ ] Consider heatsink mounting if required + +### 4. Silkscreen Updates +**Changes Required:** +- [ ] Add "Purple Driver" marking or version identifier +- [ ] Update component values on silkscreen +- [ ] Add polarity markings for motor connections +- [ ] Add assembly notes if space permits +- [ ] Update revision number/date + +--- + +## Bill of Materials (BOM) Updates + +### Changes Required: +- [ ] Update stepper driver part number to purple driver +- [ ] Verify all passive component values +- [ ] Update manufacturer part numbers +- [ ] Add alternative part numbers if available +- [ ] Update supplier information +- [ ] Verify current ratings of all components + +**BOM Format:** +``` +Reference | Description | Part Number | Manufacturer | Quantity | Notes +---------|-------------|-------------|--------------|----------|------ +U1,U2 | Purple Stepper Driver | [PART_NUMBER] | [MANUFACTURER] | 2 | [SPECIFICATIONS] +``` + +--- + +## Library Updates + +### 1. Symbol Library +**File:** `*.kicad_sym` + +**Changes Required:** +- [ ] Create or update purple stepper driver symbol +- [ ] Verify pin names and numbers +- [ ] Add datasheet reference +- [ ] Update component description +- [ ] Add relevant specifications as properties + +### 2. Footprint Library +**File:** `*.kicad_mod` + +**Changes Required:** +- [ ] Create or update purple driver footprint +- [ ] Verify pad dimensions from datasheet +- [ ] Add proper 3D model association +- [ ] Add courtyard and fabrication layers +- [ ] Update footprint description + +### 3. 3D Models +**Changes Required:** +- [ ] Add or update 3D model for purple driver +- [ ] Verify component heights and clearances +- [ ] Update assembly visualization + +--- + +## Design Rules Check (DRC) Updates + +### Changes to Verify: +- [ ] Run DRC after making changes +- [ ] Check for clearance violations +- [ ] Verify track width rules +- [ ] Check hole sizes +- [ ] Verify component placement + +--- + +## Testing and Validation + +### Pre-Fabrication Checks: +- [ ] ERC (Electrical Rules Check) passes +- [ ] DRC (Design Rules Check) passes +- [ ] Visual inspection of PCB layout +- [ ] Cross-reference with purple driver datasheet +- [ ] Verify BOM against schematic +- [ ] Check Gerber files before ordering + +### Post-Assembly Tests: +- [ ] Continuity testing +- [ ] Power supply voltage measurements +- [ ] Driver functionality test +- [ ] Thermal testing under load +- [ ] Full system integration test + +--- + +## Documentation Updates + +### Files to Update: +- [ ] README.md - Add notes about driver type +- [ ] Assembly instructions +- [ ] User manual +- [ ] Schematic PDF export +- [ ] Manufacturing notes +- [ ] Test procedures + +--- + +## Version Control + +### Recommended Versioning: +- **Current Version:** 1.0 (with red drivers - assumed) +- **New Version:** 1.1 (with purple drivers) + +### Version Marking Locations: +- [ ] PCB silkscreen +- [ ] Schematic title block +- [ ] Assembly documentation +- [ ] Git repository tags + +--- + +## Dependencies and Prerequisites + +Before making changes, ensure you have: +- [ ] Purple stepper driver datasheet +- [ ] Actual measurements from assembled boards +- [ ] Access to KiCad project files +- [ ] Backup of current design +- [ ] Component specifications from suppliers + +--- + +## Change Implementation Plan + +1. **Preparation Phase** (Day 1) + - Gather all datasheets and specifications + - Take measurements from assembled boards + - Create backup of current design + +2. **Schematic Updates** (Day 2) + - Update driver symbols + - Verify power supply design + - Run ERC + +3. **Layout Updates** (Day 3) + - Update footprints + - Check trace widths + - Update silkscreen + +4. **Verification Phase** (Day 4) + - Run DRC + - Generate Gerbers + - Review all changes + +5. **Documentation Phase** (Day 5) + - Update all documentation + - Generate manufacturing files + - Create release notes + +--- + +## Risk Assessment + +### High Risk Items: +- ⚠️ Footprint incompatibility could require board redesign +- ⚠️ Insufficient power trace width could cause failure +- ⚠️ Inadequate thermal design could damage components + +### Mitigation Strategies: +- Verify all specifications before ordering new boards +- Review changes with experienced hardware engineer +- Order small batch for testing before production run + +--- + +## Notes + +- All changes should be reviewed and approved before fabrication +- Consider creating separate design branch for purple driver variant +- Maintain compatibility with existing firmware if possible +- Document any component substitutions clearly + +--- + +## Related Documents +- [KICAD_ISSUES.md](./KICAD_ISSUES.md) - Detailed issue tracking +- [ASSEMBLY_NOTES.md](./ASSEMBLY_NOTES.md) - Assembly procedures and notes + +## Last Updated +2026-02-07 diff --git a/DOCUMENTATION_INDEX.md b/DOCUMENTATION_INDEX.md new file mode 100644 index 0000000..5f19238 --- /dev/null +++ b/DOCUMENTATION_INDEX.md @@ -0,0 +1,331 @@ +# Documentation Index + +## Overview +Complete index of all documentation created for the V3S Stepper Hardware project, specifically focused on issues discovered during purple stepper motor driver assembly. + +--- + +## 📑 Document Hierarchy + +### Level 1: Getting Started +Start here if you're new to the project: + +1. **[README.md](./README.md)** + - Project overview + - Purpose and status + - Quick links to all documentation + - Version information + +2. **[QUICK_REFERENCE.md](./QUICK_REFERENCE.md)** + - Fast access to key information + - Navigation guide + - Quick troubleshooting + - Assembly checklists + +### Level 2: Detailed Information +Dive deeper into specific topics: + +3. **[KICAD_ISSUES.md](./KICAD_ISSUES.md)** + - Comprehensive issue tracking + - All known problems with purple drivers + - Priority and status of each issue + - Action items required + +4. **[CHANGES_NEEDED.md](./CHANGES_NEEDED.md)** + - Detailed KiCad modification plan + - Schematic changes required + - PCB layout updates needed + - BOM and library updates + - Implementation timeline + +5. **[ASSEMBLY_NOTES.md](./ASSEMBLY_NOTES.md)** + - Complete assembly procedures + - Step-by-step instructions + - Soldering techniques + - Quality control procedures + - Troubleshooting guide + +### Level 3: Reference and Templates + +6. **[ISSUE_TEMPLATE.md](./ISSUE_TEMPLATE.md)** + - Template for reporting new issues + - Structured format + - Example usage + - Status indicators + +--- + +## 🎯 Document Purpose Matrix + +| Document | Read When... | Use For... | +|----------|-------------|-----------| +| README.md | Starting with the project | Overview and navigation | +| QUICK_REFERENCE.md | Need fast answers | Quick lookups and checklists | +| KICAD_ISSUES.md | Planning fixes | Understanding all problems | +| CHANGES_NEEDED.md | Updating KiCad files | Implementation guidance | +| ASSEMBLY_NOTES.md | Building boards | Assembly procedures | +| ISSUE_TEMPLATE.md | Found a problem | Documenting new issues | + +--- + +## 📊 Documentation Statistics + +- **Total Documents:** 6 +- **Total Lines:** 1,368 +- **Total Size:** ~38 KB +- **Coverage:** Complete documentation for purple driver assembly issues + +### Document Breakdown + +| Document | Lines | Purpose | +|----------|-------|---------| +| ASSEMBLY_NOTES.md | 362 | Assembly procedures and troubleshooting | +| QUICK_REFERENCE.md | 269 | Fast reference guide | +| CHANGES_NEEDED.md | 262 | KiCad modification requirements | +| ISSUE_TEMPLATE.md | 187 | Issue reporting template | +| KICAD_ISSUES.md | 174 | Issue tracking | +| README.md | 114 | Project overview | + +--- + +## 🔄 Documentation Workflow + +### For Assembly Team +``` +1. Read README.md (overview) + ↓ +2. Review QUICK_REFERENCE.md (preparation) + ↓ +3. Check KICAD_ISSUES.md (known problems) + ↓ +4. Follow ASSEMBLY_NOTES.md (during assembly) + ↓ +5. Use ISSUE_TEMPLATE.md (if issues found) +``` + +### For Hardware Design Team +``` +1. Read README.md (overview) + ↓ +2. Study KICAD_ISSUES.md (all problems) + ↓ +3. Review CHANGES_NEEDED.md (required changes) + ↓ +4. Implement changes in KiCad + ↓ +5. Update documentation with results +``` + +### For Project Management +``` +1. Read README.md (overview) + ↓ +2. Check QUICK_REFERENCE.md (status dashboard) + ↓ +3. Review KICAD_ISSUES.md (issue priorities) + ↓ +4. Track progress via CHANGES_NEEDED.md +``` + +--- + +## 📝 Content Categories + +### Issues and Tracking +- KICAD_ISSUES.md: Comprehensive issue list +- ISSUE_TEMPLATE.md: How to report new issues + +### Solutions and Changes +- CHANGES_NEEDED.md: What needs to be fixed in KiCad +- ASSEMBLY_NOTES.md: How to work around issues during assembly + +### Reference and Navigation +- README.md: Project entry point +- QUICK_REFERENCE.md: Fast access to key info +- DOCUMENTATION_INDEX.md: This file - document map + +--- + +## 🔍 How to Find Information + +### Looking for... + +**"What's the project about?"** +→ README.md + +**"What are the critical issues?"** +→ QUICK_REFERENCE.md → Known Critical Issues + +**"How do I assemble a board?"** +→ ASSEMBLY_NOTES.md + +**"What KiCad changes are needed?"** +→ CHANGES_NEEDED.md + +**"What issues exist with purple drivers?"** +→ KICAD_ISSUES.md + +**"How do I report a new problem?"** +→ ISSUE_TEMPLATE.md + +**"Which document should I read first?"** +→ You're reading it! Start with README.md + +--- + +## 🎨 Document Conventions + +### Status Indicators +- 🔴 Critical - Immediate attention required +- 🟡 Medium - Should be addressed +- 🟢 Low - Nice to have + +### Progress Indicators +- ✅ Complete +- 🔄 In Progress +- ⏸️ Deferred +- 🔍 Investigating +- ⏳ Pending + +### Section Markers +- 📚 Documentation +- 🛠️ Implementation +- 🔍 Investigation +- 📊 Status +- 💡 Tips +- ⚠️ Warnings + +--- + +## 🔗 Cross-References + +Documents are heavily cross-referenced to help you navigate: + +- README.md links to all other documents +- QUICK_REFERENCE.md provides fast navigation +- KICAD_ISSUES.md references CHANGES_NEEDED.md +- CHANGES_NEEDED.md references KICAD_ISSUES.md +- ASSEMBLY_NOTES.md references both issue documents +- ISSUE_TEMPLATE.md shows how to link to other documents + +--- + +## 📱 Quick Access Links + +### Most Common Needs +1. [Assembly Checklist](./QUICK_REFERENCE.md#assembly-checklist) +2. [Critical Issues](./QUICK_REFERENCE.md#known-critical-issues) +3. [Troubleshooting](./QUICK_REFERENCE.md#troubleshooting-quick-reference) +4. [Required KiCad Changes](./CHANGES_NEEDED.md#schematic-changes) +5. [Known Issues List](./KICAD_ISSUES.md#issues-found-during-assembly) + +### GitHub References +- [Issue #1: Init commit](https://github.com/TauraBots/V3S_Stepper_Hardware/issues/1) +- [Issue #2: Purple Driver Assembly](https://github.com/TauraBots/V3S_Stepper_Hardware/issues/2) +- [Pull Request #5](https://github.com/TauraBots/V3S_Stepper_Hardware/pull/5) + +--- + +## 🔄 Maintenance + +### When to Update Documentation + +Update **immediately** when: +- New issues are discovered during assembly +- KiCad changes are implemented +- Testing reveals new information +- Workarounds are found + +Update **regularly**: +- After each assembly session +- When closing issues +- When milestones are reached + +Update **as needed**: +- When processes improve +- When new tools are adopted +- When team feedback suggests improvements + +### Who Maintains What + +| Document | Primary Maintainer | Update Frequency | +|----------|-------------------|------------------| +| README.md | Project Lead | After major changes | +| KICAD_ISSUES.md | Hardware Team | After each assembly | +| CHANGES_NEEDED.md | Hardware Team | During design updates | +| ASSEMBLY_NOTES.md | Assembly Team | After each build | +| QUICK_REFERENCE.md | All Teams | As needed | +| ISSUE_TEMPLATE.md | Project Lead | Rarely | + +--- + +## 📈 Documentation Maturity + +Current maturity level: **Initial Release** + +### Maturity Levels +1. ✅ **Initial Release** - Documentation created and structured +2. ⏳ **First Revision** - Updated after first assembly session +3. ⏳ **Validated** - Confirmed accurate through multiple builds +4. ⏳ **Stable** - Minimal changes needed +5. ⏳ **Comprehensive** - Covers all edge cases + +--- + +## 💡 Documentation Best Practices + +### Writing Style +- Clear and concise +- Use bullet points and lists +- Include examples where helpful +- Add visual indicators (emoji, icons) +- Cross-reference related sections + +### Organization +- Logical hierarchy +- Consistent formatting +- Clear headings +- Table of contents for long documents +- Index or navigation sections + +### Maintenance +- Version dates +- Change tracking +- Regular reviews +- Community feedback +- Continuous improvement + +--- + +## 📞 Getting Help with Documentation + +### Issues with Documentation +- Unclear instructions +- Missing information +- Broken links +- Outdated content +- Suggestions for improvement + +**Report via:** +- GitHub Issues (preferred) +- Comments on Issue #2 +- Pull requests with improvements + +--- + +## 🎯 Success Metrics + +Documentation is successful when: +- ✅ New team members can assemble boards independently +- ✅ All known issues are documented +- ✅ KiCad changes are clearly specified +- ✅ Problems can be diagnosed using troubleshooting guides +- ✅ Issue reporting is consistent and complete + +--- + +**Last Updated:** 2026-02-07 + +**Version:** 1.0 - Initial documentation set + +**Status:** Living documents - continuously updated diff --git a/ISSUE_TEMPLATE.md b/ISSUE_TEMPLATE.md new file mode 100644 index 0000000..0070afe --- /dev/null +++ b/ISSUE_TEMPLATE.md @@ -0,0 +1,187 @@ +# Issue Template for Purple Driver Assembly + +Use this template to document specific issues found during the assembly and testing of boards with purple stepper motor drivers. + +--- + +## Issue #[NUMBER]: [Brief Title] + +**Date Discovered:** YYYY-MM-DD +**Discovered By:** [Name] +**Board Serial/Batch:** [If applicable] +**Severity:** 🔴 Critical / 🟡 Medium / 🟢 Low +**Status:** 🔍 Investigating / 🔧 In Progress / ✅ Resolved / ⏸️ Deferred + +--- + +### Description +[Detailed description of the issue] + +### Location +- **Schematic:** [Reference designator, page, section] +- **PCB:** [Layer, coordinates, reference designator] +- **Component:** [Part number, manufacturer] + +### Symptoms +- [Observable symptom 1] +- [Observable symptom 2] + +### Impact +- **Functionality:** [What doesn't work] +- **Performance:** [How performance is affected] +- **Safety:** [Any safety concerns] +- **Manufacturing:** [Impact on assembly process] + +### Root Cause Analysis +[Analysis of why the issue occurred] + +### Reproduction Steps +1. [Step 1] +2. [Step 2] +3. [Step 3] + +### Workaround +[Temporary solution if available] + +### Proposed Solution +[Permanent fix to be implemented in KiCad] + +### Required Changes +- [ ] Schematic change +- [ ] PCB layout change +- [ ] BOM update +- [ ] Documentation update +- [ ] Testing procedure update + +### Verification Plan +[How to verify the fix works] + +### Related Issues +- Related to Issue #[NUMBER] +- See also: [Document reference] + +### Photos/Diagrams +[Attach photos or create diagrams showing the issue] + +### Notes +[Any additional relevant information] + +--- + +## Example Issue Entry + +## Issue #1: Stepper Driver Footprint Mismatch + +**Date Discovered:** 2026-02-07 +**Discovered By:** icarusMQ +**Board Serial/Batch:** Assembly Batch 2 (Purple Drivers) +**Severity:** 🔴 Critical +**Status:** 🔍 Investigating + +--- + +### Description +During assembly of the purple stepper motor drivers, it was discovered that the footprint dimensions may not perfectly match the component. This requires verification and potential redesign. + +### Location +- **Schematic:** U1, U2 (Stepper Driver symbols on page 2) +- **PCB:** Top layer, drivers located at coordinates [TBD] +- **Component:** Purple Stepper Motor Driver [Model TBD] + +### Symptoms +- Potential pin misalignment +- Difficulty seating component fully +- Uncertain if all pins make proper contact + +### Impact +- **Functionality:** May cause intermittent connection issues +- **Performance:** Could affect motor control reliability +- **Safety:** Potential for poor electrical contact and heating +- **Manufacturing:** Increases assembly difficulty and reject rate + +### Root Cause Analysis +The original footprint was designed for red stepper drivers. Purple drivers may have different: +- Pin pitch (spacing between pins) +- Overall package dimensions +- Pin thickness +- Body size + +### Reproduction Steps +1. Attempt to insert purple driver into PCB footprint +2. Observe fit and alignment +3. Check if all pins align with pads +4. Verify component can be fully seated + +### Workaround +- Carefully align pins manually +- Apply force carefully to ensure full seating +- Verify electrical continuity after soldering +- Consider hand-bending pins slightly if necessary (not recommended) + +### Proposed Solution +1. Obtain accurate datasheet for purple driver +2. Verify exact pin pitch and package dimensions +3. Update footprint in KiCad library +4. Modify PCB layout to use correct footprint +5. Generate new Gerbers for next board revision + +### Required Changes +- [x] Schematic change - Update symbol properties +- [x] PCB layout change - Update footprint +- [x] BOM update - Update part number +- [x] Documentation update - Note footprint change in revision notes +- [ ] Testing procedure update - Add dimensional verification + +### Verification Plan +1. Print PCB footprint at 1:1 scale +2. Place actual purple driver on printout +3. Verify pin alignment +4. Measure critical dimensions with calipers +5. Compare with datasheet specifications +6. Order test PCB with new footprint +7. Verify fit with actual components + +### Related Issues +- Related to Issue #2 (Purple Driver Assembly) +- See also: KICAD_ISSUES.md Section 1 +- See also: CHANGES_NEEDED.md - PCB Layout Changes + +### Photos/Diagrams +[To be added: Photos of driver fit issue] + +### Notes +- Priority: High - affects all future boards +- Consider making footprint compatible with both red and purple drivers if pin configurations allow +- May require board revision before next production run + +--- + +## Template Usage Instructions + +1. Copy the template section above +2. Replace [PLACEHOLDERS] with actual information +3. Fill in all relevant sections +4. Add to KICAD_ISSUES.md or create separate issue file +5. Update status as issue progresses +6. Link to related issues and documents + +## Status Indicators + +- 🔴 Critical - Prevents functionality, safety risk, or blocks assembly +- 🟡 Medium - Reduced performance or increased difficulty +- 🟢 Low - Minor issue, cosmetic, or documentation only + +- 🔍 Investigating - Root cause not yet determined +- 🔧 In Progress - Solution is being implemented +- ✅ Resolved - Issue is fixed and verified +- ⏸️ Deferred - Issue acknowledged but postponed to future revision + +## Issue Numbering + +Issues should be numbered sequentially starting from 1. If tracking in GitHub Issues, reference the GitHub issue number. + +Example: "Issue #5 (GitHub #2)" for the 5th documented issue which is also GitHub Issue #2 + +--- + +**Last Updated:** 2026-02-07 diff --git a/KICAD_ISSUES.md b/KICAD_ISSUES.md new file mode 100644 index 0000000..07e8d74 --- /dev/null +++ b/KICAD_ISSUES.md @@ -0,0 +1,174 @@ +# KiCad Project Issues - Purple Stepper Motor Driver Assembly + +## Overview +This document tracks issues discovered during the soldering and assembly of V3S robot boards using **purple stepper motor drivers** (as opposed to the red ones originally designed for). + +**Reference:** Issue #2 - Electronics with purple driver Assembly + +## Assembly Process + +### Assembly Checklist +- [ ] Small SMD components +- [ ] LDO (Linear Dropout Regulator) +- [ ] Through hole components + +--- + +## Issues Found During Assembly + +### 1. Stepper Motor Driver Compatibility +**Status:** 🔴 Critical +**Description:** The board was originally designed for red stepper motor drivers. Using purple drivers may require: +- Footprint verification +- Pin compatibility check +- Voltage/current rating verification +- Heat dissipation considerations + +**Action Required:** +- Update KiCad schematic to reflect purple driver specifications +- Verify footprint compatibility +- Update component references and part numbers in BOM + +--- + +### 2. SMD Component Placement Issues +**Status:** 🟡 To Be Verified +**Description:** During SMD component soldering, potential issues to document: +- Component orientation markings +- Pad size compatibility +- Solder mask clearances +- Component value labels visibility + +**Action Required:** +- Verify all SMD footprints match actual components +- Check silkscreen markings for clarity +- Ensure polarity markings are clear for polarized components + +--- + +### 3. LDO Component Specifications +**Status:** 🟡 To Be Verified +**Description:** LDO (Linear Dropout Regulator) specifications need verification for compatibility with purple drivers +- Input/output voltage ratings +- Current capacity +- Thermal considerations +- Mounting/heatsink requirements + +**Action Required:** +- Verify LDO can handle current requirements of purple drivers +- Check thermal design and cooling requirements +- Update schematic if different LDO is needed + +--- + +### 4. Through-Hole Component Issues +**Status:** 🟡 To Be Verified +**Description:** Through-hole components assembly considerations: +- Hole sizes for component leads +- Connector pin compatibility +- Mechanical fit and mounting +- Wire routing clearances + +**Action Required:** +- Verify all through-hole footprints +- Check connector types and pinouts +- Ensure adequate clearance for wire routing + +--- + +### 5. Power Distribution +**Status:** 🔴 Critical +**Description:** Purple stepper drivers may have different power requirements than red drivers: +- Operating voltage range +- Peak current draw +- Power supply decoupling requirements +- Trace width adequacy for current handling + +**Action Required:** +- Calculate actual current requirements for purple drivers +- Verify power trace widths are adequate +- Check decoupling capacitor values and placement +- Update power distribution network if needed + +--- + +### 6. Documentation and Labeling +**Status:** 🟡 To Be Verified +**Description:** Board documentation needs updates for purple driver variant: +- Component reference designators +- Version marking +- Driver type identification +- Assembly notes on silkscreen + +**Action Required:** +- Add clear marking to distinguish purple driver variant +- Update version number/revision on board +- Add assembly notes to silkscreen if space permits +- Update assembly documentation + +--- + +## KiCad Project Changes Required + +### High Priority +1. Update stepper motor driver footprint and schematic symbol +2. Verify and update BOM with purple driver part numbers +3. Check power distribution network for adequate current capacity +4. Verify LDO specifications and ratings + +### Medium Priority +1. Update silkscreen markings and labels +2. Add version/revision marking for purple driver variant +3. Review and update assembly notes +4. Verify all connector pinouts and types + +### Low Priority +1. Optimize component placement if issues found +2. Improve silkscreen clarity and readability +3. Add additional assembly guidelines on silkscreen +4. Update documentation and user manual + +--- + +## Testing and Verification Required + +### Electrical Testing +- [ ] Power supply voltage and current measurements +- [ ] Stepper motor driver operation verification +- [ ] LDO output voltage and ripple measurements +- [ ] Signal integrity checks +- [ ] Thermal testing under load + +### Mechanical Testing +- [ ] Component fit and clearances +- [ ] Connector mating and mechanical stress +- [ ] Mounting hole alignment +- [ ] Overall assembly fit + +### Documentation +- [ ] Assembly procedure documentation +- [ ] Updated BOM with correct part numbers +- [ ] Errata document for known issues +- [ ] Manufacturing notes and guidelines + +--- + +## Notes for Future Revisions + +1. **Driver Selection:** Consider making the board compatible with both red and purple drivers, or clearly specify one type +2. **Power Design:** Ensure adequate margin in power design to accommodate different driver types +3. **Documentation:** Maintain clear version tracking between hardware variants +4. **Testing:** Establish testing procedures specific to each driver type + +--- + +## Related Issues +- Issue #1: Init commit - Add KiCad hardware project +- Issue #2: Electronics with purple driver Assembly + +## Last Updated +2026-02-07 + +## Contributors +- Assembly and issue identification: icarusMQ +- Documentation: Copilot (automated) diff --git a/QUICK_REFERENCE.md b/QUICK_REFERENCE.md new file mode 100644 index 0000000..4ec41cb --- /dev/null +++ b/QUICK_REFERENCE.md @@ -0,0 +1,269 @@ +# Quick Reference Guide - Purple Driver Issues + +## 🎯 Purpose +Fast reference for anyone working with V3S Stepper Hardware boards using purple stepper motor drivers. + +--- + +## 📚 Document Navigation + +| Document | Purpose | When to Use | +|----------|---------|-------------| +| [README.md](./README.md) | Project overview and getting started | First time working with project | +| [KICAD_ISSUES.md](./KICAD_ISSUES.md) | Comprehensive issue tracking | Want to see all known issues | +| [CHANGES_NEEDED.md](./CHANGES_NEEDED.md) | Required KiCad modifications | Planning KiCad project updates | +| [ASSEMBLY_NOTES.md](./ASSEMBLY_NOTES.md) | Assembly procedures and tips | Before/during board assembly | +| [ISSUE_TEMPLATE.md](./ISSUE_TEMPLATE.md) | Template for documenting new issues | Found a new issue to report | + +--- + +## ⚡ Quick Start + +### Before Assembly +1. Read [ASSEMBLY_NOTES.md](./ASSEMBLY_NOTES.md) sections 1-3 +2. Check [KICAD_ISSUES.md](./KICAD_ISSUES.md) for known issues +3. Gather required tools and materials +4. Prepare ESD-safe workspace + +### During Assembly +1. Follow assembly sequence in ASSEMBLY_NOTES.md +2. Pay special attention to purple driver orientation +3. Verify all component values against BOM +4. Perform visual inspection after each step + +### After Assembly +1. Run all quality checks from ASSEMBLY_NOTES.md +2. Perform electrical testing before powering on +3. Document any issues found using ISSUE_TEMPLATE.md +4. Report problems in GitHub Issues + +### If Updating KiCad Project +1. Review [CHANGES_NEEDED.md](./CHANGES_NEEDED.md) +2. Verify purple driver datasheet specifications +3. Make changes systematically (schematic → layout → BOM) +4. Run ERC and DRC checks +5. Update version numbers +6. Document all changes + +--- + +## 🔍 Known Critical Issues + +### Issue Priority Matrix + +| Priority | Description | Action Required | +|----------|-------------|-----------------| +| 🔴 **CRITICAL** | Stepper driver compatibility | Verify footprint and specifications | +| 🔴 **CRITICAL** | Power trace width | Check current capacity | +| 🟡 **MEDIUM** | Component markings | Verify orientation during assembly | +| 🟡 **MEDIUM** | LDO specifications | Confirm current rating adequate | + +### Top 3 Things to Check + +1. **Purple Driver Footprint** + - Verify pins align with pads + - Check pin 1 orientation marking + - Ensure full seating of component + +2. **Power Supply** + - Measure input voltage before connecting drivers + - Verify LDO output voltage + - Check for shorts between power and ground + +3. **Solder Joints** + - Inspect all driver pins for good solder joints + - Check for bridges between adjacent pins + - Verify no cold joints (dull appearance) + +--- + +## 🛠️ Troubleshooting Quick Reference + +### Board Won't Power On +``` +Check: Power connection → Polarity → Shorts → LDO → Fuses +``` + +### Driver Not Working +``` +Check: Orientation → Power → Solder joints → Enable pin → Logic signals +``` + +### Excessive Heat +``` +Check: Short circuits → Current settings → Thermal connections → Ventilation +``` + +### Intermittent Behavior +``` +Check: Cold solder joints → Loose connections → Component values → Signal integrity +``` + +--- + +## 📋 Assembly Checklist + +Quick checklist for assembling one board: + +### Pre-Assembly +- [ ] Review documentation +- [ ] Verify BOM components match requirements +- [ ] Check purple driver part number +- [ ] Prepare workspace with ESD protection +- [ ] Gather tools and materials + +### SMD Components (30-45 min) +- [ ] Apply solder paste (if using reflow) +- [ ] Place resistors +- [ ] Place capacitors +- [ ] Place ICs +- [ ] Reflow or hand solder +- [ ] Inspect joints + +### LDO (5-10 min) +- [ ] Verify part number +- [ ] Check orientation +- [ ] Solder with adequate heat on thermal pad +- [ ] Inspect connections + +### Through-Hole (20-30 min) +- [ ] Install connectors +- [ ] Install purple stepper drivers (verify orientation!) +- [ ] Install terminal blocks +- [ ] Install remaining components +- [ ] Trim leads +- [ ] Clean flux + +### Testing (15-20 min) +- [ ] Visual inspection (100% coverage) +- [ ] Check for shorts (power to ground) +- [ ] Verify continuity on power rails +- [ ] Initial power-on with current limit +- [ ] Measure regulated voltages +- [ ] Functional test with motors + +### Documentation (5 min) +- [ ] Record assembly date +- [ ] Note any issues or deviations +- [ ] Test results recorded +- [ ] Serial number assigned (if applicable) + +**Total Time:** ~1.5-2 hours per board + +--- + +## 📞 Getting Help + +### Found a New Issue? +1. Check if it's already documented in [KICAD_ISSUES.md](./KICAD_ISSUES.md) +2. Use [ISSUE_TEMPLATE.md](./ISSUE_TEMPLATE.md) to document it +3. Open a GitHub issue with details and photos +4. Reference Issue #2 (Purple Driver Assembly) + +### Need Clarification? +- Comment on GitHub Issue #2 +- Review related documentation sections +- Check external datasheets and references + +### Making Changes? +- Create a branch from `main` +- Update relevant documentation +- Test changes thoroughly +- Submit pull request with clear description + +--- + +## 🔗 External Resources + +### Datasheets Needed +- [ ] Purple stepper motor driver datasheet +- [ ] LDO voltage regulator datasheet +- [ ] PCB substrate specifications +- [ ] Motor specifications + +### Standards and Guidelines +- IPC-A-610: Acceptability of Electronic Assemblies +- IPC-J-STD-001: Requirements for Soldered Electrical and Electronic Assemblies +- KiCad documentation and best practices +- Motor control application notes + +--- + +## 📊 Status Dashboard + +### Current Project Status +- **KiCad Project:** ⏳ Pending upload (Issue #1) +- **Purple Driver Documentation:** ✅ Complete +- **Assembly Testing:** 🔄 In Progress (Issue #2) +- **Required Changes:** 📋 Identified and documented + +### Documentation Status +- ✅ Issue tracking document created +- ✅ Changes needed document created +- ✅ Assembly notes completed +- ✅ README updated +- ✅ Quick reference guide created + +### Next Steps +1. Complete assembly of boards with purple drivers (Issue #2) +2. Document specific issues found +3. Upload KiCad project files (Issue #1) +4. Implement required changes based on findings +5. Test revised boards + +--- + +## 🔄 Update Frequency + +This is a **living document** that should be updated: +- After each assembly session +- When new issues are discovered +- When changes are made to KiCad project +- When testing reveals new information + +**Last Updated:** 2026-02-07 + +--- + +## 📝 Key Terms + +- **Purple Drivers:** Stepper motor drivers with purple PCB (model TBD) +- **Red Drivers:** Original stepper motor drivers (predecessor to purple) +- **V3S:** Version 3 Stepper robot platform +- **LDO:** Linear Dropout voltage regulator +- **SMD:** Surface Mount Device +- **ESD:** Electrostatic Discharge +- **BOM:** Bill of Materials +- **ERC:** Electrical Rules Check (KiCad) +- **DRC:** Design Rules Check (KiCad) + +--- + +## ✨ Tips and Tricks + +### Assembly Tips +- **Use magnification** for SMD components - it makes a huge difference +- **Test incrementally** - don't wait until everything is soldered +- **Double-check orientation** before soldering - easier than rework +- **Clean flux residue** for better inspection and reliability +- **Document as you go** - don't rely on memory later + +### KiCad Tips +- **Back up before changes** - keep original design safe +- **Use version control** - commit frequently with clear messages +- **Run checks often** - catch issues early with ERC/DRC +- **Update libraries** - keep component libraries current +- **Document changes** - update title block and version info + +### Testing Tips +- **Start low and slow** - use current-limited power supply +- **Measure before powering** - check for shorts first +- **Heat means problem** - hot components indicate issues +- **Trust your senses** - burning smell or noise = stop immediately +- **Keep notes** - record all test results and observations + +--- + +**For detailed information, always refer to the full documentation files.** + +**Questions?** Open an issue on GitHub or comment on Issue #2. diff --git a/README.md b/README.md index e0e0d1e..199a6d8 100644 --- a/README.md +++ b/README.md @@ -1,2 +1,116 @@ # V3S_Stepper_Hardware + Kicad project repository for the stepper v3s robot pcb + +## Overview + +This repository contains the KiCad hardware design files for the V3S Stepper robot PCB. The board is designed to control stepper motors using compatible stepper motor drivers. + +## Current Status + +⚠️ **Important:** The repository is being updated to document issues found during assembly with **purple stepper motor drivers** (see Issue #2). + +## Documentation + +### 📚 Navigation +- **[DOCUMENTATION_INDEX.md](./DOCUMENTATION_INDEX.md)** - Complete guide to all documentation (start here!) +- **[QUICK_REFERENCE.md](./QUICK_REFERENCE.md)** - Fast reference guide for working with purple driver boards + +### Assembly and Issues +- **[KICAD_ISSUES.md](./KICAD_ISSUES.md)** - Comprehensive tracking of issues discovered during purple driver assembly +- **[CHANGES_NEEDED.md](./CHANGES_NEEDED.md)** - Detailed list of required changes to the KiCad project +- **[ASSEMBLY_NOTES.md](./ASSEMBLY_NOTES.md)** - Assembly procedures, best practices, and troubleshooting +- **[ISSUE_TEMPLATE.md](./ISSUE_TEMPLATE.md)** - Template for documenting new issues + +### Related Issues +- [Issue #1: Init commit](https://github.com/TauraBots/V3S_Stepper_Hardware/issues/1) - Add KiCad hardware project with BOM +- [Issue #2: Electronics with purple driver Assembly](https://github.com/TauraBots/V3S_Stepper_Hardware/issues/2) - Assembly task tracking + +## Repository Structure + +``` +V3S_Stepper_Hardware/ +├── README.md # This file - start here +├── DOCUMENTATION_INDEX.md # Complete guide to all docs +├── QUICK_REFERENCE.md # Fast reference guide +├── KICAD_ISSUES.md # Issue tracking for KiCad project +├── CHANGES_NEEDED.md # Required changes documentation +├── ASSEMBLY_NOTES.md # Assembly procedures and notes +├── ISSUE_TEMPLATE.md # Template for documenting issues +└── [KiCad project files to be added per Issue #1] +``` + +## Stepper Motor Driver Compatibility + +### Purple Drivers (Current Focus) +The board is being documented and potentially revised for compatibility with **purple stepper motor drivers**. See documentation for details on: +- Known issues +- Required changes +- Assembly notes +- Testing procedures + +### Red Drivers (Original Design) +The board was originally designed for red stepper motor drivers. If using the original design, refer to the initial specifications. + +## Getting Started + +### Prerequisites +- KiCad 7.0 or later (version to be confirmed) +- Access to purple stepper motor driver datasheets +- Soldering equipment and tools (see ASSEMBLY_NOTES.md) + +### Building the Hardware + +1. **Review Documentation** + - Read [KICAD_ISSUES.md](./KICAD_ISSUES.md) for known issues + - Review [CHANGES_NEEDED.md](./CHANGES_NEEDED.md) for any pending updates + - Study [ASSEMBLY_NOTES.md](./ASSEMBLY_NOTES.md) before assembly + +2. **PCB Fabrication** + - [To be added: Gerber files and manufacturing notes] + +3. **Component Procurement** + - [To be added: BOM with part numbers] + +4. **Assembly** + - Follow assembly sequence in ASSEMBLY_NOTES.md + - Use proper ESD protection + - Perform all quality checks + +5. **Testing** + - Follow testing procedures in documentation + - Document any issues found + +## Contributing + +Contributions are welcome! If you find issues during assembly or testing: + +1. Check existing documentation to see if the issue is already known +2. Open a new issue with detailed description and photos if applicable +3. Update relevant documentation files +4. Submit pull request with improvements + +## Support + +For questions or issues: +- Open an issue on GitHub +- Reference relevant documentation files +- Include detailed description and photos when applicable + +## License + +[License to be added] + +## Authors and Acknowledgments + +- **icarusMQ** - Initial design and assembly testing +- See contributor list for additional contributors + +## Version History + +- **v1.0** - Initial design (red drivers) - Status: In development +- **v1.1** - Purple drivers variant - Status: Documentation phase + +--- + +**Last Updated:** 2026-02-07