Drill Press Stability

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Forum topic by doncutlip posted 11-13-2011 04:24 PM 2158 views 1 time favorited 8 replies Add to Favorites Watch
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2832 posts in 2977 days

11-13-2011 04:24 PM

Topic tags/keywords: question

I recently got a Grizzly G7944 floor drill press. I wasn’t sure where I wanted it, so I built a plywood stand and bolted it to that. I made it 2 foot by 2 for stability, and then I put 80 pounts free weights on each side of the base to hold it down. Even with that, there is some wiggle when I push at it on the top. What I’m wondering is even if I bolt it to the floor, will there still be some wiggle and how much – is it worth it bolting it down over what I have now? It would seem that even then, well, the thing is like a lamp pole and it will never be rock solid. Looking for comments from those that have bolted it to the floor.

-- Don, Royersford, PA

8 replies so far

View Bluepine38's profile


3336 posts in 2506 days

#1 posted 11-13-2011 06:50 PM

First check for play between the main post and the base and make sure that is as tight as it can get, a
little play there could be a lot at the top.

-- As ever, Gus-the 77 yr young apprentice carpenter

View TopamaxSurvivor's profile


17577 posts in 3097 days

#2 posted 11-13-2011 07:03 PM

I Chained mine to the ceiling for safety and earthquake.

-- Bob in WW ~ "some old things are lovely, warm still with life ... of the forgotten men who made them." - D.H. Lawrence

View TLE's profile


25 posts in 2869 days

#3 posted 11-13-2011 07:10 PM

How much wiggle are you dealing with? Can you give a bit of a description? At a minute level the machine is going to have some “wiggle” – it is a “live” lump on top of a very resonant steel tube. My drill press is on a castor base and it wiggles. But when I’m using it I can still stand a dime on the backing block so I ignore the handling wiggle.

Is the wiggle you describe just from handling the machine or is it from running it?

View JJohnston's profile


1614 posts in 2712 days

#4 posted 11-13-2011 08:24 PM

If you’re really concerned, could you build a bracket to secure it to the wall behind it? I envision an isoceles triangle of plywood with a clamp-style connection at the column, just above the ring that holds the upper end of the elevating rack. The clamp could connect to the main body of the bracket with slotted or oversized holes so you could tweak the column for plumb.

By the way, I like your shop furniture. The plywood and pine look is perfect for it.

Also by the way, I have the next bigger model, the G7947, with the same table. If you ever figure out a good way to attach an auxiliary table to it without drilling holes in it, I’m all ears.

-- "A man may conduct himself well in both adversity and good fortune, but if you want to test his character, give him power." - Abraham Lincoln

View richgreer's profile


4541 posts in 2495 days

#5 posted 11-13-2011 09:38 PM

As JJohnston suggested, I built a bracket that connects to the wall and my drill press.

I wish I had a good picture for you. I don’t.

The bracket connects to the post of the drill press, just below the head. It does not interfere with anything.

Envision cutting a circle in the wood that is the same diameter as the post. Then cut the wood in half. Then set the drill in place and reconnect the circle with a bolt on each side.

If I ever need to move the drill press, the 2 bolts are easy to remove.

This set up keeps my drill press very stable.

-- Rich, Cedar Rapids, IA - I'm a woodworker. I don't create beauty, I reveal it.

View doncutlip's profile


2832 posts in 2977 days

#6 posted 11-13-2011 10:25 PM

No wiggle from running the machine, and I can’t say I notice much when I’m using the machine. It’s certainly usable as it is. My take from the comments for extra brackets is that bolting it to the floor might not take all the wiggle out of it. Just holding back because I only have a cheap Harbor Freight hammer drill that is not variable speed. Would variable speed (particularly slower) be better for drilling into concrete?

-- Don, Royersford, PA

View Lee Barker's profile

Lee Barker

2170 posts in 2271 days

#7 posted 11-14-2011 06:39 PM

Outside of earthquake and the occasional rogue elephant, I think there is no reason to be concerned about your drill press, Don.

If you are using it safely, the only force acting upon it is downward, nothing lateral. It will stay put. Just be sure it is level. It is by nature a topheavy tool but that in itself is no reason to lose some sleep.

Boring into concrete to bolt down a drill press seems light years sideways from doing woodworking. Even though I have 1800 square feet of shop, I need to scoonch my DP a bit this way or that at times. Bolts into the floor, no thanks.

-- " his brain, which is as dry as the remainder biscuit after a voyage, he hath strange places cramm'd with observation, the which he vents in mangled forms." --Shakespeare, "As You Like It"

View Flyin636's profile


57 posts in 1914 days

#8 posted 11-15-2011 01:46 PM

30 years ago….we had an old anvil sitting on base of DP.

20 or so years ago,built a storage unit that was basically the size of base.The height was such that it rarely had to be moved to gain table clearance.The unit had several drwrs…..heaviest “stuff” went in lower drwrs.Drills,gauges and other small fixture stuff went in upper drws.

Recently,snagged a cheapo C-man,basic lower metal tool cabinet…...same premise as storage unit above.Just more storage….more weight.A file cabinet might work.

Obvious benifits are these all put considerable weight down on base,making overall pkg more stable.But in use and practicality,having drills and fixtures located within easy reach makes for a cleaner overall set-up.It utilizes the space under table… that dosen’t do much otherwise.Best of luck,636

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