Delta 11-990 drill press older model question - Router Forums
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post #1 of 12 (permalink) Old 05-05-2012, 01:07 AM Thread Starter
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Default Delta 11-990 drill press older model question

I just bought a used but good condition Delta 12" benchtop drill press. Everything works really well. No visable run-out or vibration. However, using my caliper, I noticed when I lock the depth ring to drill a 1" hole and then lower the chuck, it measure 1 3/64". So I tried setting it to 1 1/2" and it was 4.5/64" off. Is there a way to adjust the stop or return stop (not sure if I'm stating this correctly) so my gauge is coinciding with the desired depth?
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post #2 of 12 (permalink) Old 05-05-2012, 01:32 AM
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Cover the scale with masking tape.
Draw the 'real' distances on it.
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post #3 of 12 (permalink) Old 05-05-2012, 01:41 AM Thread Starter
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Originally Posted by rwl7532 View Post
Cover the scale with masking tape.
Draw the 'real' distances on it.
That would take quite alot of time to do. The scale is circular and an inch on the scale is like 2 1/2" or so (guestimating). But still, thanks for the work-around.
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post #4 of 12 (permalink) Old 05-05-2012, 02:00 AM
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Oh, one of those.
I was thinking it was a vertical stop like my Jet.

Then ignore the scale and just measure when setting up and then lock it accordingly.
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post #5 of 12 (permalink) Old 05-05-2012, 09:00 AM
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"Is there a way to adjust the stop or return stop (not sure if I'm stating this correctly) so my gauge is coinciding with the desired depth?"
****************
No!
*******
Have studied this one.
In my view, depth stops are poorly designed, full of slop, never lock on long runs and rarely = the travel depth desired. (Note. the hole depth is a function of stock thickness; if it varies, so does the hole depth.)
Made a top-stop. The stud can be adjusted to + or - .001 or so and never loosens over any length of run. Whence the jam nut is tightened: That's it, no mo locomotion.
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post #6 of 12 (permalink) Old 05-05-2012, 09:40 AM
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Even the depth stops on Bridgeport vertical milling machines are inaccurate.Always measure your travel and proceed accordingly.
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post #7 of 12 (permalink) Old 05-05-2012, 09:41 AM
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the easy way
OR
http://www.amazon.com/iGaging-DigiMA...29376&sr=1-118
==



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post #8 of 12 (permalink) Old 05-05-2012, 10:36 AM Thread Starter
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The top stop is a great idea. I'm just not sure how I would attach it to my press. I have a neighbor who is an engineer with a bunch of metal working machines in his shop, so I'm sure I can get something put together. Thanks for the input.
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post #9 of 12 (permalink) Old 05-08-2012, 10:19 AM Thread Starter
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What is a good solvent to remove some light rust off the column of the drill press? I don't want to use anything that may damage it. I do want to properly maintain my (new to me) tools.
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post #10 of 12 (permalink) Old 05-09-2012, 10:59 AM Thread Starter
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Seems some steel wool and some brake cleaner did the trick. Looks almost new.
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