OpenBuild Acme screw for Z-Axis

X-Carve Upgrades
1

I think that I’d like to eventually use the OpenBuilds Acme screw in the future on my X-Carve’s Z-Axis. Main reason is because of the nifty anti-backlash nut that they sell. In addition to figuring out how I’m going to get the bearing and pulley from the X-Carve to work with the new rod, I need to figure out whether I should change any of my Grbl settings.

Can someone review these specs and instruct me? ( I think I gleaned the correct ones for ours.)

Inventables Acme screw:
Single start
Lead Screw Diameter 0.375" (9.525 mm)
Pitch 2.117 mm
Lead 0.083" (2.1082 mm)

Openbuilds Acme Screw:
Tr8*8-2p (4 starts)
Lead Screw Diameter ∅ 8 (mm)
Pitch 2 (mm)
Lead 8 (mm)

My thanks to @AngusMcleod for the info he’s already posted about Acme screws in the past. This is just something completely new to me.

1 Like
3

Use Inventables supplied pulley.
However you also need the lock collars.
See my post:

I have that rod and anti black lash nut on my machine

4

Perfect! Thanks guys, I’m ordering the stuff now.

5

What kind of differences have you noticed with this upgrade?

6

Check out:
C-beam z axis upgrade and Openbuilds v-wheels

I am in the process of upgrading as well. :slight_smile: