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28511

Re: Drill chuck misalignement.

sorry - got my lists mixed up - You're working on your mill Pigi.......my fault. The answer is still the same. As a side note, I got native R-8 collets for my
Warren LeMay
Jul 23
#28511
 
28510

Re: Drill chuck misalignement.

If you have a collet/center drill combination that match, even though not the one you are having trouble with, try it. If that looks good - you have at least
Warren LeMay
Jul 23
#28510
 
28509

Re: Drill chuck misalignement.

That's a good idea. I should get a collect for it and will give a try !!!! Or maybe I should get a centerdrill for the collects I have ( my smallest is 6mmm
pigifly
Jul 23
#28509
 
28508

Re: Drill chuck misalignement.

Hi Pigi, The miscommunication was not your fault, I just didn't read your message carefully enough. The drill chuck was the culprit, as is often the case.
markkimball2000
Jul 23
#28508
 
28507

Re: Drill chuck misalignement.

Pigi, if you have an appropriate collet, try the center drill in a collet..... Also, try a different center drill. If they are ground even slightly off
Warren LeMay
Jul 22
#28507
 
28506

Re: Drill chuck misalignement.

Mark, I'n not sure I have explained the problem ( and the fix ;) ) The problem was in the B16 taper on the rear of the chuck. The Mt3-B16 arbor was fine (
pigifly
Jul 22
#28506
 
28505

Re: Drill chuck misalignement.

Hi mark, In my experience the arbors are generally accurate but the chucks bundled with the machine can be variable. The one that came with mine wasn't bad but
gerry waclawiak
Jul 22
#28505
 
28504

Re: Drill chuck misalignement.

Hi Pigi, Good job on correcting your problem. I wouldn't have thought the arbor would be the piece that had the runout -- from what I've read on this & other
markkimball2000
Jul 22
#28504
 
28503

Re: Drill chuck misalignement.

Mark, thanks for your reply. No, the misalignement is not new, and as far as I can tell it seems to be worst when using a 5x2 center drill. I have done a
pigifly
Jul 22
#28503
 
28502

Re: Puzzling 1/8" backlash issue resolved

Prasad, Good job tracking down a troublesome problem and resolving it, as well as sharing your findings with others who might encounter this problem in the
CLevinski
Jul 21
#28502
 
28501

Re: Puzzling 1/8" backlash issue resolved

Prasad, Right, a nylok nut won't fix slop due to a loose feed screw nut. Both have to be looked after to get minimum backlash (I didn't say zero :). On the
markkimball2000
Jul 21
#28501
 
28500

Re: Puzzling 1/8" backlash issue resolved

Hi Mark I think you are the only member of this group who cared to respond. Not a complaint. Yes I agree with you. Grizzly's G8689 manual missed this
Prasad
Jul 20
#28500
 
28499

Re: Puzzling 1/8" backlash issue resolved

The "manual" provided by the manufacturer is not all that great. Learning the machine by taking it apart (maybe to clean it) is a good way to find those odd
markkimball2000
Jul 19
#28499
 
28498

Re: Drill chuck misalignement.

Hi Pigi, Is the misalignment new? If it initially was good but misalignment showed up later, check for debris on the taper. Evenly tightening the chuck
markkimball2000
Jul 19
#28498
 
28497
barryjyoung
Jul 19
#28497
 
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