CEB Press/Manufacturing Instructions/Detroit Fab Lab Solenoid Driver v4
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Source File Repository:
All source files are located in this repository: schematics, board layout, netlist, drill list, arduino source code, etc.
https://github.com/dwiel/ose-cebpress-controller-board
Goals
- Add Left/Right/Up/Down buttons on board
- Add Left/Right/Up/Down terminal positions for external control
- Add Left/Right/Up/Down to source code
- Build schematic and board layout in with KiCAD
Design Rational
- Buttons and terminals must all be easy to access
- Circuit board must be easy to etch by hand
- Populating and soldering parts of the circuit board should be easy
- Using more through hole components this time for this reason
- Circuit board should be small so that they are cheaper and faster to etch/mill
Results
Here is a view of the board with all of the layers visible. You will want to use other views for milling or etching. Other file formats can be found in the [1].
Here is a view of the schematic
In order to build this board, you will need to either:
- purchase an already milled board
- mill your own board
- etch your own board
From there you will need to assemble the board with the following parts:
TODO: refine bill of materials. Materials have slightly changed from previous board.
Notes
- the original MOSFET is rated to 50V,16A but the solenoids listed in the Bill of Materials only use 3A @ 12v (D05S-2C-12D-35 and D05S-2H-12D-35) | reference pdf.
- Pullup resistor for buttons can be set in code - http://arduino.cc/en/Tutorial/DigitalPins