Who can cut an internal acme thread for me? Found and done!

[paperpuncher]

Thank you sir!

Sorry no luck on a 10 pitch I did not even have anything 1"
I did grind a tool and single point an internal thread for a crossfeed nut for a lathe. It is a bit of a PIA much easier to source a nut and press it into a pc of aluminum to suit your application

 

[hogpatrol]

Saw those, nothing in a 1" diameter which I would like to have.

https://www.roton.com/family/acme-right-screws-and-nuts-7059495/

$13.63 a foot They sell the nuts also. (scroll down on that page).

 

[PatMiles]

Sorry no luck on a 10 pitch I did not even have anything 1"
I did grind a tool and single point an internal thread for a crossfeed nut for a lathe. It is a bit of a PIA much easier to source a nut and press it into a pc of aluminum to suit your application

Thanks for checking, I really appreciate it!

 

[PatMiles]

https://www.roton.com/family/acme-right-screws-and-nuts-7059495/

$13.63 a foot They sell the nuts also.

Man, you're like a junkyard dog! I'll be ordering from these folks.
THANKS FOR THE EFFORT!!!

 

[hogpatrol]

PS.....to do a 1"- 10, I'm thinking it will be a 3 tap set. I don't remember a thread depth rule of thumb for an Acme. You will be needing a decent Al lube.

One piece roughing and finishing taps are available for Acme threads but for larger sizes, you'll need a machine with some horsepower. Small one pictured here.

 

[ridgeway]

Why does it have to be acme? 1"-8 mariner wheel from Hart for $25 and chase a 1" carbon steel rod.

 

[hogpatrol]

Why does it have to be acme? 1"-8 mariner wheel from Hart for $25 and chase a 1" carbon steel rod. View attachment 1127940 View attachment 1127941

Chuck, You beat me to it. I was going to suggest a double helix.

 

[PatMiles]

Chuck,
No particular reason, just copying the rest a friend bought.

 

[butchlambert]

Chuck,
No particular reason, just copying the rest a friend bought.

Pat, seems the easiest way is hogpatrol's link. Ain't going to find anybody to make you one for close to that price unless somebody just wants to do it for a "I did it thing".

 

[PatMiles]

Pat, seems the easiest way is hogpatrol's link. Ain't going to find anybody to make you one for close to that price unless somebody just wants to do it for a "I did it thing".

Yeppers, that's just what I did!

 

[jackson1]

Acme and internal threads, my least favorite kind of job. Aluminum and using hand ground high speed tooling will make the job easier. If it was me, I would cut 2 pieces of stock, just in case. Sorry made my response with out completely reading the thread.

 

[PatMiles]

Acme and internal threads, my least favorite kind of job. Aluminum and using hand ground high speed tooling will make the job easier. If it was me, I would cut 2 pieces of stock, just in case. Sorry made my response with out completely reading the thread.

Yeppers, I wasn't going to try an internal Acme.
Ended ordering a round bronze bushing with a 1"-10 Acme thread. I'll bore the aluminum mariners wheel for a press fit and be done with it. Ordered a 12" piece of Acme threaded rod also.

 

[Dusty Stevens]

I think an internal acme is easier than the male version.

 

[hpshooter]

"Yeppers, I wasn't going to try an internal Acme."

Pat,
At some point you may want to consider picking up some Delrin round stock. Many times you can find some at a job shop that does CNC work, they often use Delrin to trial run programs and set ups on.


This stock is good to practice on if you can get it on the cheap. Cuts well with HSS tooling so you can practice grinding tools and not as prone to tearing expensive things
up if you crash the tooling into the stock during the learning process such as cutting internal threads.

One step at a time!