[OP]
Contributor
I built a BenchCrafted Moxon vise, using their 8" ACME threaded rods. I would like to replace the rods with 10" at least occasionally, except that I cannot find 3/4" 10" ACME threaded rods. BenchCrafted sold them at one point, but discontinued them. Nowhere do I find such a thing. Does anyone have a lead on who might? Google has been unproductive so far.
Member
Try mcmaster-carr, they have lots of 3/4" ACME thread, just depends on what pitch you need.
Contributor
If all you need are 10" long acme threaded rods, 3/4-6, McMaster sells them up to 10 feet long. 12" pieces are 7 bucks.
--I had my patience tested. I'm negative--
[OP]
Contributor
Why do you say 3/4-6? I'm not arguing, my thread-finder only has 3/4-10 and 3/4-16, and the correct thread for the wheels is neither of those.
[OP]
Contributor
Thanks, by the way. I found their rods, just want to confirm thread size.
Contributor
3/4-10 and 3/4-16 are coarse and fine for 60* v-shaped threads. Acme threads have a different pitch.Originally Posted by John Makar
Confidence: The feeling you experience before you fully understand the situation
Contributor
Well 3/4-6 is the most common acme thread pitch for 3/4 rod. I think 3/4-8 might also be available, but is less common. You will have to measure your rod to see what it is. Just count number of threads in an inch.
--I had my patience tested. I'm negative--
Contributor
www.surpluscenter.com has 3/4-6 amce rod 3 fooot length rods for $15.80 and nuts for$4.95. Good luck
No thread gauge needed, put your scale along the threads and count how many threads there are per inch.
Lee Schierer
USNA '71
Go Navy!
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[OP]
Contributor
My read is 3/4-8
Contributor
Zoro is also a good source for metal stuff like this. It will be cheaper to replace the nuts and switch to a standard size acme rod rather then have a custom thread made.
Bill D.
https://www.zoro.com/zoro-select-acme-screw-low-carbon-steel-0750x36-24304/i/G1456664/
I was wrong 3/4 8 is a standard in acme.
https://www.roton.com/product/acme-s...w-right-59433/
Last edited by Bill Dufour; 02-01-2020 at 1:37 PM.
Contributor
So 12" 3/4-8 acme rods are $4.50 at Mcmaster. They have longer too.
--I had my patience tested. I'm negative--
[OP]
Contributor
Yeah, search on 3/4-8 gets lots of interesting sources. The question becomes how to stay sane. At some point the extra length has to create enough leverage to start messing with the fixed chop. But it is sort of cool I could fit a 6' wide plank in my vise if I wanted to.
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