Thread Grinding

[Cuesavvy]

Hi Guys. Very nice forum. Lots of good information here. Hope I can share some of what I have learned here too.

I'd like to give thread grinding a go. Can someone give me a few pointers?

RPM's of grinder? Do you guys use a variable speed grinder?
I assume you make one pass to full depth. Is that right?

Can anyone give up a source for this small tooling?

I did a search before I posted, found lots of reference to grinding but not much detail.

Thanks in advance.

 

[Murray Tucker]

Hi Guys. Very nice forum. Lots of good information here. Hope I can share some of what I have learned here too.

I'd like to give thread grinding a go. Can someone give me a few pointers?

RPM's of grinder? Do you guys use a variable speed grinder?
I assume you make one pass to full depth. Is that right?

Can anyone give up a source for this small tooling?

I did a search before I posted, found lots of reference to grinding but not much detail.

Thanks in advance.

I have mine mounted in a Foredom flex shaft machine. I built a fixture so that I could mount the hand piece in the tool post and the motor just hangs out on the carriage. I like to run the lathe slow. Maybe 50 rpm for larger threads like 5/8 and 80 rpm for smaller threads.

I got my cutter from MSC but any major tool supplier should have them.

 

[Pancerny]

I recently purchased a solid carbide threading tool from MP Tools in
California to be able to thread my stainless steel joint collars
with better tolerances. (Photo in my Shop Tour section)
Wow, I love it and should have bought one of these a long time ago.
It cost me $100 but it was well worth it.
Cheers,
Mike
www.customcuemaker.com
P.S. Check out the links section!!!

Here's the info on the guy for the threading tool if you ever want
one.....

Ed Pimintel
MP Tool
7812 Clyborn Ave.
Sun Valley, Ca

 

[Pancerny]

Thread tool

By the way I cut the threads in one pass to full depth. My lathe has an inching capability which I use for this operation. It spins the chuck just a little bit and allows the carriage to travel the right distance for the necessary thread to be put on the wood. This reduces the stress to the tool and the wood and makes it much more difficult to thread too far. It's mounted in a Porter Cable router which has been attached to a tool holedr for my quick change tool post. The tool will need to be able to cut at least .080 deep for a joint collar which will be too big to use it for pins. You will want a seperate tool for that operation. Leonard Bludworth may be able to expand on this as I purchased the tool from the guy he buys from.
Mike