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pc drill press table movement

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Forum topic by shelly_b posted 10-05-2012 06:57 PM 1494 views 0 times favorited 22 replies Add to Favorites Watch
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shelly_b

848 posts in 871 days


10-05-2012 06:57 PM

So i have gotten a few new toys over the last week… one of them is the pc drill press and so far i love it. This is my first drill press so i have nothing to compare it to. The only thing that i dont like is when you move the table up and down it moves side to side so there is no way to keep the hole centered under tue chuck/quil without adjusting it by hand everytime you have to raise or lower it. Is this normal with every dp? If the hole in the table was bigger i wouldnt worry as much but iif i am using a large bit i could easily hit the table…not to mention it would be nice if i knew exactly where the bit would hit the table everytime for precision purposes… hope this makes sense lol


22 replies so far

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shelly_b

848 posts in 871 days


#1 posted 10-05-2012 07:05 PM

I also got a new dewalt orbital jigsaw, plate for my router table, razor sharp wheels, drill press vice and little things like bits and blades… if i would stop buying little stuff everyweek i could have a saw stop in a month or 2 lol

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Murdock

107 posts in 1238 days


#2 posted 10-05-2012 07:11 PM

Every drill press I have used is the same way.

Been trying to think of a way to deal with that myself when I finally get one in my own shop.

I assume that DP has the ‘gearing strip’ that slides around the post? What about a couple of big hose clamps to hold it in place? Never tried it, but maybe if you weren’t to hard on it?

-- "Anyone who has never made a mistake has never tried anything new." - Albert Einstein

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NiteWalker

2710 posts in 1331 days


#3 posted 10-05-2012 07:12 PM

The table movement is normal. I managed this by making an auxiliary table for my press, and some removable inserts. Under the removable insert is a 3/8” hole I drilled after centering the table the best I could. I use this for centering it. It works well.

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

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MrRon

2991 posts in 1997 days


#4 posted 10-05-2012 08:28 PM

I would always back up the work with a scrap piece for just that purpose and also to get a clean hole. If you are not drilling a through hole, the depth stop will keep you from drilling into the table.

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shelly_b

848 posts in 871 days


#5 posted 10-05-2012 09:17 PM

Thankyou. Good to know its not a defect lol. I plan on making a table with replaceable inserts as soon as i get time. The depth stop is pretty easy to go past so i don want to completely rely on it…

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Bill White

3589 posts in 2714 days


#6 posted 10-05-2012 09:19 PM

Don’t worry about it.
Re-adjust as needed. I do it all the time. What? 30 seconds?
I spend that time trying to remember where my coffee cup was left.
Bill

-- bill@magraphics.us

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shelly_b

848 posts in 871 days


#7 posted 10-05-2012 11:37 PM

lol true. I lose everything I pick up lol. I swear there are little knomes in my garage that pick my tape measure up and move it everytime I set it down lol

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patron

13184 posts in 2095 days


#8 posted 10-06-2012 12:26 AM

haven’t found a stop yet that didn’t move some
(except the ones that have 2 nuts to tighten together
but messing with that is a pain)

i just raise the table to the depth i want for the hole
(with quill all the way down)
and drill like that

a backer board for through holes is good too

-- david - only thru kindness can this world be whole . If we don't succeed we run the risk of failure. Dan Quayle

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JesseTutt

811 posts in 864 days


#9 posted 10-06-2012 01:19 AM

My Jet drill press has the same problem. I traced it down to two different causes.

1. The gear strip on the column was loose and moving. There did not appear to be an adjustment to correct this problem. I found a make shift solution by using two 4” dust collector clamps one on the top and the other at the bottom of the column.

2. The other is side to side movement in the assembly that holds the table to the column. I removed must of that by cramming a metal shim in the gap.

-- Jesse, Saint Louis, Missouri

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jumbojack

1221 posts in 1378 days


#10 posted 10-06-2012 01:33 AM

Shelly, I don’t use a dedicated add on table, but always throw a piece of scrap on my table before drilling through. Not only does it protect my bit and table, but it backs up the cut so you dont get blow out on the back of the work piece. Granted I use a Shopsmith and have the advantage of using the fence and miter gauge to set up the cut perfectly.

-- Made in America, with American made tools....Shopsmith

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NiteWalker

2710 posts in 1331 days


#11 posted 10-06-2012 04:07 AM

Jesse, the looseness of the rack is by design; it’s so you can swing the table out of the way.

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

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Howie

2656 posts in 1677 days


#12 posted 10-06-2012 11:44 AM

My Ridgid does the same thing.

-- Life is good.

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teejk

1215 posts in 1438 days


#13 posted 10-06-2012 02:19 PM

nitewalker is correct. it’s by design. but there should be a clamping screw to “pinch” the table to the column once you have it aligned where you want it.

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CharlieM1958

15820 posts in 2972 days


#14 posted 10-06-2012 02:31 PM

Like MrRon said, you get much better results by backing up your work with scrap anyway. On the rare occasion when I expect my bit to go all the way through the table, it only takes a second to make sure the alignment is okay.

-- Charlie M. "Woodworking - patience = firewood"

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JesseTutt

811 posts in 864 days


#15 posted 10-06-2012 02:55 PM

NiteWalker: The gap is slightly less than 1/16” at the rack and pinion gear. This causes a couple of inch movement by time you get to the drill bit. This is not good news for accuracy when using a fence and stop block system. The problem is when you need to raise or lower the table to use a different bit (say a small bit to drill the hole followed by a countersink bit) the table has moved horizontally and precession is lost.

An upcoming project is to build 10+ sets of dominos. This involves hundreds of holes. Not a problem I can use my Incra positioner, fence and stop block. As long as everything is mounted to the table and I do not have to raise or lower the table I can dial in the ruler to about 1/1000th of an inch. Now I can move the fence and stop block to allow all the holes to be drilled accuracy. This will take several sessions in the shop to finish. But, what happens if a friend, who restores old Victrola phonographs, comes by and wants to pay me to craft a replacement part? If I have to drill a hole and need to raise or lower the drill press table, I will never be able to get back to the exact position (X – Y) to finish the dominos. Maybe the domino customer won’t notice the slight offset of some of the holes, but I will.

I wish I had the money and room to buy a milling machine, I know that that will give me the accuracy I need.

-- Jesse, Saint Louis, Missouri

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