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+# Electronic
+- [ ] prototype on breadboard:
+  - [ ] power motor and arduino from 12V
+  - [ ] use button and endstop to do a reset
+- [ ] finish PCB design
+- [ ] create PCB (engrave, drill, solder)
+- [ ] test PCB
+
+# 3D printing
+
+## gears
+- [ ] remodel gears
+- [ ] print gears
+- [ ] test gears
+
+## laser
+- [ ] remodel laser holder
+- [ ] print laser holder
+- [ ] test laser holder
+
+## rod holder
+- [ ] remodel rod holder
+- [ ] print rod holder
+- [ ] test rod holder
+
+## model a box
+- [ ] model a box
+- [ ] print box
+- [ ] assemble/test box
+
+# Mecanics
+- [ ] plan for assembly
+- [ ] assemble
+
+# Software
+- [ ] first proto that only drive the gear
+- [ ] second proto that can do reset
+
+# general
+- [ ] test
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