Hello everyone,
Well I finally Had a chance to do some more work,I got my taper cut out on my face plate trued and ready to go,I also have got my 4 jaw back plate trued up man it's heavy. hew:
I am have a problem with my three jaw chuck I have trued the back plate,when I put a DI on the spindle I have 0 run out both ways same with my three jaw back plate 0 TRI.The problem comes when I bolt the 3 jaw to the back plate the body has 5 thousands run out.I put a 12 inch test bar in the chuck leave .500 out and put my di on it and I have 12 thousands run out.
I put my three jaw in the 4 jaw chuck to check the run out on the back of the chuck where it bolts to the back plate and it's only 1 thousand off .So I'm not sure where the problem is.:thinking: while the lathe is running you can clearly see the wobble in the body but the back plate has no wobble. any info would be appreciated.
Thanks JB
Well I finally Had a chance to do some more work,I got my taper cut out on my face plate trued and ready to go,I also have got my 4 jaw back plate trued up man it's heavy. hew:
I am have a problem with my three jaw chuck I have trued the back plate,when I put a DI on the spindle I have 0 run out both ways same with my three jaw back plate 0 TRI.The problem comes when I bolt the 3 jaw to the back plate the body has 5 thousands run out.I put a 12 inch test bar in the chuck leave .500 out and put my di on it and I have 12 thousands run out.
I put my three jaw in the 4 jaw chuck to check the run out on the back of the chuck where it bolts to the back plate and it's only 1 thousand off .So I'm not sure where the problem is.:thinking: while the lathe is running you can clearly see the wobble in the body but the back plate has no wobble. any info would be appreciated.
Thanks JB