Just thinking

[Chucketn]

Does anyone make a collet block for R8collets? I could use one for making square and hex, for simpleindexing on my mill, as I already have R8 collets. I haven't foundanything via Google.
Is there any reason why R8 colletblocks woud not be practical?


Chuck in E. TN

 

[OldMachinist]

I've never seen any. The main drawback would be that because R8 uses a draw bolt to tighten them you wouldn't be able to do anything that needs to be longer than the grip depth of the collet. 5C collets allow the work to pass all the way thru.

 

[Chucketn]

I've never seen any. The main drawback would be that because R8 uses a draw bolt to tighten them you wouldn't be able to do anything that needs to be longer than the grip depth of the collet. 5C collets allow the work to pass all the way thru.

Now, that does make sense, OM. But. I think I'll make one for small stuff anyway.

Chuck

 

[pineyfolks]

I made one out of 1 1/2 hex stock, it was a simple project and worked well for what I needed. I already had the collets and didn't want to waste any money, all I had to buy was a 7/16-20 bolt for a drawbar. Here are the dim for you.

 

[Chucketn]

Pinyfolks, you wouldn't happen to have any of that 1 1/2" hex left would you?

Chuck

 

[pineyfolks]

Pinyfolks, you wouldn't happen to have any of that 1 1/2" hex left would you?

Chuck

I'll have to check I'm not sure about the lenghts I have, I know they were all short drops

 

[pineyfolks]

Pinyfolks, you wouldn't happen to have any of that 1 1/2" hex left would you?

Chuck

I'll have to check I'm not sure about the lenghts I have, I know they were all short drops.I also made one from round stock with 1/4" reamed holes on the OD, drilled at different spacings. I just insert the pin rotate it against the solid jaw of my vise and clamp, remove the pin and index it to the next hole you need and repeat.