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:
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.
What's the advantage of 2 start rod over standard Acme threaded rod?
nice looking nuts and prices cool that you give free shipping, wish you all the luck with your product.
It has higher leads, and is a bit more efficient (for Acme).Originally Posted by SimonArthur
Mach3 2010 Screenset
(Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)
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, how bad is the regular (not precision) Acme rod? You talk about polishing it. I don't know how well that can be done.
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.
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