eng_journal.md

06/27/2019

• Compile OldRoCo repo
  • Record of modification:
    • ++line 8 of vstart.sh
    • --> pip install -r requirements.txt --user
• Export paperbot dxf file : graph-silhouette.dxf to OnShape
  • Record of Tips:
    • Onshape does not read dxf file as its own saved unit. Manual settings needed when import.
    • !onshape_dxf_unit
• Draw circuit diagram as CAD on Onshape
  • Multiple connection approaches:
    • Cross shape of 0.039 in
    • Cross shape of 0.049 in
    • Octangular shape of 0.049 in
    • !connection_approaches
  • Note and issue:
  • Octangular shape is the best connection approach so far, but none of approach has stable conductivity. More research is needed.
  • Scratches can be made easily when attaching microcontroller to the sheet. Potential disconnection may occur due to such scratches on metal layer.
• Export 2D CAD drawing with PCB to SVG for silhouette cameo
  • Record of Tips:
    • OnShape unit need to be consisted with unit setting in Inkscape (default: mm)
  • Plugin Inkscape-silhouette cannot take multiple types of trace for cutting.
    • Different trace (especially cut and etching) need to be sent separately. Use coordinate tool of Inkscape to ensure separated cuts have same origin.