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Materials and Tools[edit | edit source]
Note[edit | edit source]
Drilling pilot holes in the plywood rounds isn't necessary but can make driving the sheet metal screws easier.
To minimize swelling and shrinking due to changes in humidity, sealing the plywood rounds is recommended.
Procedure[edit | edit source]
Marking and drilling pilot holes (OPTIONAL)[edit | edit source]
- Mark the relative location of the motor end assembly to the base plate by drawing a line through the center of one of the linking boards and a matching line on the round plywood piece. Mark the round plywood piece to indicate whether it is for the idler or motor end.
- Drill 2mm (1/16") pilot holes in the locations marked, but do not drill through the board.
Mounting bases[edit | edit source]
- Center the motor or idler end assembly over a plywood round. If there are pilot holes, line up the assembly with marks made during marking of pilot holes.
- Attach base plates to both ends (motor and idler).
- Check that an M3 nut will thread onto the M3 x 85mm threaded rods from both ends. Check each threaded rod before proceeding.
- Repeat with the idler end assembly.
Drilling wire passage holes - motor end assembly[edit | edit source]
Holes need to be drilled in one of the linking boards for wires to pass through. The holes should be located near the printed end of the Y tower, which will be determined based upon the order of the motors:
- Set the motor end on the work surface with the plywood round down so the motors are visible.
- Mark motors and their wires 'X', 'Y' and 'Z' going clockwise. Use masking tape to label the wires.
Drilling wire passage holes - idler end assembly[edit | edit source]
- As with the motor end, drill an 8mm (5/16") hole through one of the linking boards on the idler end assembly, near a printed idler end. When the motor and idler end assemblies are stacked on top of each other with plywood rounds up, the holes should line up vertically.
- Carefully feed the limit switch wires through the hole in the idler end linking board.