5C versus ER32 Collet Blocks

[mklotz]

Marv, I like that idea :bow: And 24 divisions gives quite the flexibility. Have you detailed the construction of this somewhere? I'd like to make one, a 5C version. I'd think that a picture or two of the parts separated would do the job.

I haven't described its construction here. I'll have to dig it out, take some photos and start a new thread - I don't want to intrude any further into Bogs'.

Edit: See descriptive post at:

http://www.homemodelenginemachinist.com/index.php?topic=18213.0

 

[Mayhem]

I had been toying with the idea of buying a set of 5C collets and blocks, as ER32 collet blocks didn't exist. Boy am I glad that I saw that Arc make them.

Of course, they are out of stock as you all bought them! I'm hoping they will have more soon, as my Mum is visiting friends in the UK in September, so shipping will be much cheaper (more money for tooling and beer ;D )

 

[Groomengineering]

Hi all, just a quick heads up on "cheap and cheerful" 5c collet blocks. I used my square block for the first time the other day to carve a piece of brass rod into a connecting rod. After a bit of machining things started to look odd. After a bit of scratch.gif and measuring it turns out my 'square' block is actually a rectangle. :wall: It's about 0.008" wider one way than the other. It's still usable, but defeats a good bit of the advantages of using it. I haven't measured the hex block yet, but I don't have high hopes.

Cheers

Jeff

 

[mp409mm]

John

Thanks for the review of this new product from arceurotrade. I want a pair.

Unfortunately, the cost of a pair and the cost of delivery to where I live are basically the same. So I guess I will have to live without them until I have a desperate need for them (or I come and live in the UK).

Still, a handly bit of tooling to have.

Vince

True, I have the same problem, so I wait until I visit UK and bring them back with me.

 

[petertha]

After a bit of scratch.gif and measuring it turns out my 'square' block is actually a rectangle. :wall: It's about 0.008" wider one way than the other. It's still usable, but defeats a good bit of the advantages of using it.

I'll trade you. My Asian knockoff block was ground square in section within a thou, but the collet hole was off center >0.010". Different screw-up, same end result.