A few small things are needed to assemble the z-stage.
I made the four bed clamps out of some 1/4 inch plywood. Each one is cut out of a 41 x 41 piece. I cut a 45 degree diagonal 18 mm from one corner. I drilled three 5.4 mm holes at (9, 9), (9, 31.5) and (31.5, 9).
For the z-motor-coupling I drilled an 8.4 mm hole through the center of a 5/8 inch dowel. I used a hack saw to cut a slot along the side. I put two small pipe clamps on it so I can tighten it down.
I also made the diagonal-tie-brackets. There are 20 of these. I started with a 35 x 35 block that was 3/4 inch thick. The first hole is through the side. It is 21 mm from the front and 10 mm from the top. This hole was drilled with a 8.4 mm bit all the way through.
The next hole is through the top and is 13 mm from the front and 17 mm from the side. This one is 8.4 mm and goes all the way through to the bottom.
The final hole is through the front. It is 10 mm from the top and 17 mm from the side. This is a 4.2 mm hole and only goes through to the vertical hole. I will put threads in this last hole.
Update: The diagonals has to be 15 mm longer than listed in the BOM to accommodate these. I had already cut them, so I just half threaded the nuts on the end. I think I’ll leave them like that until I can print plastic parts that are the right size.
