Surface gringing on a bridgeport?

H

hoodlum

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I recently acquired a #12 series dunmore toolpost grinder at an auction...It has no motor,pulleys,or wheels yet,but the spindle is true and smooth...It is too large for my Logan lathe,so I was wondering about mounting it to the bridgeport turret ram,opposite of the mill head where the shaper attachment would normally go.......I have looked for other examples of this,but haven't seen anything...I realise it would be slow grinding something manually,but it would be much better than no grinder at all!!!!Thoughts?
Hoodlum
 
It just mite be me but I wouldn't do it, Have you ever seen the inside of a surface grinder. There pretty well protected but the dust and grit get inside and can mess things up.

Paul
 
I am sure that you would make it work but I wonder if it would be as nice as you want/need it to be. Also I agree with the previous posting that it would be difficult if not impossible to keep the gravel out of your mill.

john
 
It wouldn't be the best thing for the mill. They simply aren't designed to handle the swarf and dross from a grinding operation, plus the ways of a mill aren't really suitable for getting a proper ground finish.

If you should decide not to pursue it, and want to offer it for sale or trade, I might be interested. it would save me building on from scratch. No pressure, no attempt at influence, just thinking "out loud".
 
Ok,thanks for the opinion...I would probably be willing to sell it,but this thing is HEAVY.....Shipping would probably be a killer..
Hoodlum
 
Sure, you can do it. Some people say you can't have wood shavings on your lathe or mill, either.

As long as you protect the ways, table, bearing surfaces, you'll be OK. One shop I was in, they used an old lathe from the 1920s for ID and OD grinding. The ways on that machine were in great shape, considering they'd been using it that way for at least 40 years.

Unless you have a humongous shop, with a separate grinding department; you will always have grit floating around in the air. I use a cup wheel on my mill, and lathe, all the time; for sharpening other tools.
 
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