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| John Rudd:
Andrew, I share your concerns too....its a bit daunting with around 20kg of metal spinning around even at 100rpm..... The backplate idea is a non-starter.... The holes in my backplate are such that it wont accomodate bolts 120 degrees apart..... So further thinking required in an approach..... |
| Pete W.:
--- Quote from: John Rudd on November 15, 2016, 12:39:23 PM ---Andrew, I share your concerns too....its a bit daunting with around 20kg of metal spinning around even at 100rpm..... The backplate idea is a non-starter.... The holes in my backplate are such that it wont accomodate bolts 120 degrees apart..... So further thinking required in an approach..... --- End quote --- Couldn't you make an adaptor plate? |
| awemawson:
Dare I suggest that you drill your face plate :scratch: |
| John Rudd:
Food for thought guys....thanks... :thumbup: I've knocked off for the nite...back to work tomorrow..so more shop time over the coming days.. :lol: |
| Spurry:
John Of all things you have to do with that chunk, the o/d is the least important. When I made one for my little machine, I just got it running sort-of true by eye, then centre drilled the outer end. Held it in place with a running centre, then faced off the outer end as much as possible, with a little skim up the outside to sit in the jaws. Flip it over in the chuck, and repeat. On the second facing op, the piece should hopefully be sitting at the rear of the jaws, so depending how much out, the second facing cut is, depends whether you risk removing the supporting centre. Stick it in the mill, drill/tap to correct pcd. As you cannot fit it on the faceplate directly, go with the adapter plate suggestion. This should get you in the ball-park of two parallel faces.....the world is then your oyster. :wave: Pete |
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