Printrbot Z Bar Stabilizer Set
by mikemwa, published
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I printed these. the bolt holes were fine with a little shifting around. my bed is slightly higher than stock, because i have it on springs and adjustable. but these stabilizers were 7mm too high for my set up. i had to chop off 7mm and re-do the notch for the bridge back board. it was easy enough to do with an industrial razor scraper, pried between the layers to pry off the top 7mm. and the same tool to cut the notch needed. i quick-soaked mine in acetone and painted the inside of the sleeve with CA to help strengthen it.
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The 12mm rod needs to be a press fit into the hole. If the 12mm hole is too big then you will need to scale it down in your Silcer program a percent or 2. If it's too small you can either scale it up a percent or 2 or file the hole a bit bigger.
I didn't have the exact dimentions for the 6-32 screws but they are close. If they are out of position a bit you will need to enlarge or Dremel the holes out so they fit. The screws will also need to be about 1/4 inch longer.
As you can see my bed is raised. You may need to modify or adjust your Z Stop screw so the bearings or wood pieces don't touch the Stabilizers or raise your bed. I have included the SketchUp file so if you need to you can modify the part.
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