anti-backlash leadnuts for std threaded rod

[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

[motomitch1]

nice job

[dumpster]

I just added a new size: 1/2"-8 ACME 2 Start (4 turns per inch).

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

[SimonArthur]

What's the advantage of 2 start rod over standard Acme threaded rod?

[sendkeys]

nice looking nuts and prices cool that you give free shipping, wish you all the luck with your product.

[ger21]

Originally Posted by SimonArthur What's the advantage of 2 start rod over standard Acme threaded rod?

It has higher leads, and is a bit more efficient (for Acme).

[dumpster]

Like ger21 said. These are actually 1/2"-4 threads, however there is 8 threads per inch. You could say that there are (2) 1/2"-4 threads, 180 degrees apart.

sendkeys: Thanks for your good wishes, I hate it when people jack up the s/h charges to make a few extra bucks. It costs me .83 cents to ship 4 of these in the US + .50 cents for the bubble mailer, I have no problem covering that!

Tim

[dumpster]

I added yet another size: 3/8"-16 for the standard threaded rod.

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

[dumpster]

For those who e-mailed me about standard 5/16"-18 anti-backlash leadnuts, they are now ready on my web page.

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

[Fred in NC]

Tim, how bad is the regular (not precision) Acme rod? You talk about polishing it. I don't know how well that can be done.

[dumpster]

Hi Fred,

Depending on the screws you get, they can be pretty rough. A good sanding/polishing of the screw will greatly extend the life of the leadnuts. The smoother the screw is the longer they will last, this goes with any leadnuts, not just mine. It's not hard to get them smooth, a lathe works best, if you don't have access to a lathe, you can put the leadscrew in a hand drill and spin it holding sand paper first then Scotch-Brite or other type of polishing pad.

Tim
dumpsterCNC

[dumpster]

I just added two more sizes for a total of 8 sizes currently stocked. I've been getting some great feedback on these anti-backlash leadnuts and will continue adding more sizes.

The new sizes available are ACME 1/4-16 and Metric M10x1.5

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