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Drill press runout

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Forum topic by ZiggyZ posted 452 days ago 568 views 0 times favorited 8 replies Add to Favorites Watch
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ZiggyZ

51 posts in 1009 days


452 days ago

Hi

I scored a Delta 16 1/2” model 17-900 drill press in like new condition today off craigslist for $75.00. I put my dial indicator on it and got runout of about .004 to .005. Is this acceptable for a press? I have my table saw within .001 and thought this might be a bit much?

Thanks for any input.


8 replies so far

View mjrausch's profile

mjrausch

19 posts in 479 days


#1 posted 452 days ago

where did you take the reading? did you put it on the shaft, drill chuck, or did you put a drill in and idicate that?
did you also put the indicator in the chuck and indicat ethe table. depending on where you took the reading, this is not to bad.

-- mjrausch

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ZiggyZ

51 posts in 1009 days


#2 posted 452 days ago

I took two measurements, one each from the chuck and one from the shank of a Forstner bit just below the jaws of the chuck. They were both at about .004.

View REO's profile

REO

593 posts in 698 days


#3 posted 452 days ago

for drilling holes you should be just fine. if you realy want to get wild take a reading off the forstner shank just above the flutes. mark the high reading. losen the chuck and give it a 90 degree turn and see if the wobble tracks.combined with your other readings this will also tell you if the chuck is out of paralell or off center.

View Dusty56's profile

Dusty56

11643 posts in 2312 days


#4 posted 452 days ago

Did you run the shaft (quill) all the way down and check for side to side play there as well ?

-- I'm absolutely positive that I couldn't be more uncertain!

View NiteWalker's profile

NiteWalker

2709 posts in 1201 days


#5 posted 452 days ago

That reading is fine.
I never even checked runout on my drill press. It drills holes straight and the correct size. That’s all the confirmation I need.

-- He who dies with the most tools... dies with the emptiest wallet.

View Mainiac Matt 's profile

Mainiac Matt

3870 posts in 953 days


#6 posted 452 days ago

I keep a little stub of TPG shaft for making these type of runout measurements. Your Forstner bit might be the source of some of that.

Even so, I think it’s acceptable.

-- Pine is fine, but Oak's no joke!

View Mainiac Matt 's profile

Mainiac Matt

3870 posts in 953 days


#7 posted 452 days ago

If you have the taper key, you could try popping the taper open, cleaning it up and reseating it.

-- Pine is fine, but Oak's no joke!

View Fred Hargis's profile

Fred Hargis

1712 posts in 1118 days


#8 posted 452 days ago

I’d say you lucked out. Mine (bought new) had runout of about .015”, and I only recently fixed it (new chuck). I now have .003” and am quite happy with for woodworking.

-- Our village hasn't lost it's idiot, we sent 'em to Washington.

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