anti-backlash leadnuts for std threaded rod

[InspirationTool]

Hi Tim! Neat idea!

How much force can these handle? A standard nut/spring/nut arrangement can handle a certain amount of force before it shows backlash. How do these work? I assume you'd use them an a cnc wood/plastic router situation rather than a metal milling machine, right?

Thanks!

-Jeff

[dumpster]

Hi Jeff,

These work differently than the nut-spring-nut design. On mine, the spring pushes the sleeve against the angled end of the leadnut which compresses the threaded fingers onto the screw. They will take a lot of force, how much? I'm not sure, I haven't pushed one to the breaking point, though I've tried. It would have to physically break the sleeve or threads.
Of course, I wouldn't use these on a Bridgeport conversion for obvious reasons, but I use them on my router and on my mini-lathe which I cut steel and aluminum on with no problem, they work well. I'm doing a Sieg 2 mini-mill conversion this summer which I'll use these on, I believe they'll work fine.

Tim

[dumpster]

I now have 3/8"-12 ACME available on my website. I am also setup to make 3/8"-8 ACME, but don't have them on my site yet, email me if you need that size.

Thanks,
Tim
http://www.gonebowlin.com/dumpsterCNC

[Bilbobaker]

Originally Posted by dumpster Hi gang, I hope this is the right place to put this... I started making anti-backlash leadnuts for standard size threaded rod and wanted to let everyone know. Backlash is a big problem with home built cnc and I ended up making my own leadnuts and decided to make other sizes to sell. Visit my page at: http://www.gonebowlin.com/dumpsterCNC As of this writing I have 3 sizes: 1/2-10 acme, 1/4-20 UN, and metric M6 x 1, but can custom make other sizes. Thanks, Tim

I notice that you have 1/4 Acme anti backlash screws as well now.
Do you know of a good source for that size threaded rod too?
Thanks.
Bill

[dumpster]

Hi Bill,

Right, I added 1/4"-16 ACME lead nuts and I have a McMaster-Carr part # for the screws listed on my web page.

I also just added 1/2"-10 ACME 2 Start (5 turns per inch) from a custom job.

Thanks,
Tim
dumpsterCNC
http://www.gonebowlin.com/dumpsterCNC/

[creative_mind]

Do you sell ACME lead nuts for the 5/8"-10 ACME 1-start screw?