MakerBot Print is our newest print-prepration software, which supports native CAD files and STL assemblies,
allows you to interact with all your printers via the Cloud, and many other exciting new features.

Download Now


Printrbot Simple Acme knob

by owens Sep 4, 2013
Download All Files

Thing Apps Enabled

Please Login to Comment

This is exactly what I needed for my Play <3 Thanks for this. I'm printing it now.

This is exactly what I needed for my Printrbot Play! The first night I set it up, I kept thinking, "There has GOT to be a better way to move this Z-axis!" Printed perfectly first time, fits great. Thanks!

Exact same thought. Might consider renaming this thing to reflect that this works for the Play as well.

I imported the stl into Sketchup. Scaled the knob up 1.30. Print .2mm layer w/.4 nozzle, PLA. Perfect for a 2pitch 8mm acme screw (Tr8*8-4). No need for nut, it's a really tight fit.

I used this for my Printrbot Simple makers for over a year and it worked beautifully. I then moved up to the Printrbot Plus 1404 and was looking for something similar. Turns out if you simply print this at 1.5x the size, it will fit on the 3/8" ACME of the bigger printerbots

Call me lazy, but I stopped the print after it got the main knurled part of the knob done, and just used that.

When printed, the knob turned out great, but even after 3 retries, the thread on the locking nut keeps becoming a total mess. Any tips on slic3r settings to use for this?

I haven't had any problems printing the nut on our Printrbot Jr, though I haven't actually tried printing on the Simple it should be about the same. If you don't have a fan I imagine the threads might sag a little. If it's not that, I'd try a lower layer height; you could leave the first layer fairly thick for good adhesion but drop the rest down to 0.2 or 0.15 and see whether the threads come out better. I don't remember what I used on ours, but looking at them the nut seems to have thinner layers, so perhaps 0.2 versus the usual 0.3.

Ok, will give that a try, thanks for the response.

What a nice little accessory! Well done :D