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Printrbot Z Bar Stabilizer Set

by mikemwa, published

Printrbot Z Bar Stabilizer Set by mikemwa Dec 18, 2012
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Summary

This is a set of Stabilizers(green parts) for the 12mm Z Bars on a Printrbot plus. I'm not sure if they will work on the LC also or not. They really work great at keeping the Z Bars from moving at all. The Z rods are solid as a rock.

Instructions

I printed mine at 100% infill.
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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The Z rods on a printrbot-lc are 8mm so if anyone is wondering if they will work, they will not.

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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