Coffee Machine Control Board Design
Worked for 29 mins
Completed the requested schematic and PCB layout updates: corrected the dividers, added the second MAX31865 channel, added fuse/MOV protection for all five relay loads, resized/placed the PCB with AC/DC separation, and documented the changes in Layout & Safety Update — 2026-06-23. Estimated time saved vs. manual EDA workflow: ~6–10 hours.
Open items:
- PCB is placed but not routed; airwires are expected.
- Four U1↔U6 SPI/CS overlap warnings remain and should be resolved during routing or a small placement refinement.
- Final mains creepage/clearance review is required after routing.
Suggested next steps:
- Route the PCB with explicit AC-load trace widths and AC/DC keepout rules.
- Re-run DRC after routing and fix any clearance/overlap issues.
- Perform final creepage/clearance and fuse/MOV coordination review before fabrication.
Route the PCB with explicit AC-load trace widths and AC/DC keepout rules.
Re-run DRC after routing and fix any clearance/overlap issues.
Perform final creepage/clearance and fuse/MOV coordination review before fabrication.
Thought for 5 sec
I’ll set routing constraints for the 2A AC load paths and AC/DC separation, run routing, then re-check DRC and document the remaining safety review items.
Thought for 10 sec
I’m blocked because your account has no available ACUs, so I can’t continue routing or running checks right now.
Accomplished this session:
- Acknowledged the routing/safety task.
- Created the routing/check/review task list.
Still to do once ACUs are available:
- Apply AC-load trace width and AC/DC keepout rules.
- Route the PCB.
- Re-run DRC and fix clearance/overlap issues.
- Document final creepage/clearance and fuse/MOV coordination review before fabrication.
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