Using Your Vertical Mill As A Ring Roller.

[AdrianH]

What Harrison mill have you got?

This one

Also got a Vertical head to go with it, all manual, no power feeds etc.

Adrian

 

[Screwdriver]

Out of interest, what static load would you be happy to put on that arbor and what sort of deflection would you expect to see?

I reckon a firm turn on the handle and you're looking at a few tens of kg and a measurable 2-3 thou movement.

I would hazard a guess if you were cack handed, a couple of hundred kg would be doable and the arbor would bend visibly!

 

[AndyStobbs]

Out of interest, what static load would you be happy to put on that arbor and what sort of deflection would you expect to see?

I reckon a firm turn on the handle and you're looking at a few tens of kg and a measurable 2-3 thou movement.

I would hazard a guess if you were cack handed, a couple of hundred kg would be doable and the arbor would bend visibly!

You are probably right, but in a ring roller set up, you would move the overarm support in towards the spindle to give the minimum amount of length.

 

[Spark plug]

That will do the spindle bearings as mutch good as lifting a lathe by its chuck, wouldn't catch me doing it.

I know mill spindles take a lot of punishment when they are milling but that's what they where designed to do.

 

[AdrianH]

Out of interest, what static load would you be happy to put on that arbor and what sort of deflection would you expect to see?

I reckon a firm turn on the handle and you're looking at a few tens of kg and a measurable 2-3 thou movement.

I would hazard a guess if you were cack handed, a couple of hundred kg would be doable and the arbor would bend visibly!

If you are asking about my Horizontal mill then yes I would move the support back towards the head and in theory you would only have the arbour long enough to support the die, doing the aluminium tube though does not take a lot, my slowest speed is 47 rpm, the issue would be hitting the ceiling with any bar, which if you read the link in the first post is why the original op did it using a vertical mill and not horizontal.

Adrian

 

[500e]

That tube will be thin wall as well your 5 year old bend it round wood former by hand I would thing, without breaking sweat.
But you would get a better radius with the rollers
Not something I would do with real metal

 

[Screwdriver]

That tube will be thin wall as well your 5 year old bend it round wood former by hand I would thing, without breaking sweat.
But you would get a better radius with the rollers
Not something I would do with real metal

Doh. Well if it's thinwall tube and not solid bar, I could wrap it around my c*ck. Depending on haw big a radius they were after

 

[squazy84]

This one
View attachment 78276

Also got a Vertical head to go with it, all manual, no power feeds etc.

Adrian

looking good,ive a similar mill i think,im always looking for bits for it,it certainly dont suffer from flex that i can see!

 

[Shox Dr]

He only needed another side plate and a handle, to make it a ring roller.

Rather his mill than mine regardless of wall thickness.

 

[Kent]

He only needed another side plate and a handle, to make it a ring roller.

Rather his mill than mine regardless of wall thickness.

That is what I thought why?

 

[Kent]

Doh. Well if it's thinwall tube and not solid bar, I could wrap it around my c*ck. Depending on haw big a radius they were after

Yes it's material limited this is less side force than running an end mill on an ambitious cut

 

[outofthefire]

If I'd got the dies and a mill I'd just make a ring roller rather than risk my machine