do you have a smaller gear? I would love to use this in a project im doing but i need the gear to be about 1/2 the size

Amazing! Very nice work ! Quite amazing to see it in action like this ! Is the overall length of the rack not a issue (for assembly and smooth movement) ?

I haven't work on my version for a long long time , so , really glad you came up with this :)

Fantastische Arbeit! Gut zu sehen das es tatsäschlich funktionniert!

I think a smaller pinion with herringbone teeth would work better. herringbones can have less backlash than a regular involute before getting crunchy and stiff

Nice Thing. I have added it to my file of things to print. How do you attach the rack to the x-carriage? Have you redesigned an all new X-carriage, or do you have an adapter part to fit an existing X?

I feel like an idiot, I just realized that the rack has a large threaded rod supporting it. I have no doubt now that this reduces backlash and if printed well probably bumps up accuracy.

Rack
&
amp; Pinion Y-axis should be next!

I think this is a great step towards reducing the required "vitamins" to build a reprap, but I believe a quality belt system would be more precise than a printed rack-pinion, but I'm probably wrong.

Thanks for designing something to help make RepRaps more RepRap-able and proving that it's not only a viable alternative but possibly a better one. :)

Hi,

How much backlash are you experiencing on this? I would have thought it would be more than a timing belt?

Cheers
Jfp