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Base slots on a drill press. What are they for?

skipnay

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I'm wondering why they put slots on the base of a drill press? Maybe it's just me but can't think of a reason other then their isn't a reason!!! I would say I guess you could bolt weights to it. :mad: For what reason? Pictures might help me....
 
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1991Syclone

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Englewood, FL
Well, there's this for the table:

image_17593.jpg


But I think he means the very bottom base, not the table. I suppose it's so you can anchor it to a stand.
 

zmotorsports

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The slots in the BASE are there for fastening/clamping/jigging longer items to that won't fit between the table and the quill. The table merely swings out of the way and you mount your work to the base. I don't think it is anywhere near as common as it once was but drill press manufacturers still put them on the base.

Mike.
 

Big Pete

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I've used them to clamp big stuff down to. I bored out a motorcycle swingarm pivot by bolting it down to the base of the drill, no way was it going to fit in a vice.
 
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skipnay

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Thanks guys. Yes I was talking about the base and not the table!
 

jmarkwolf

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Southeast Michigan
On a floor standing drill press, there can be nearly 4 feet between the quill and the base.

Still not clear on the practical use of those slots in the base on a floor standing drill press.
 
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OccupantRJ

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Eastern North Carolina
On a floor standing drill press, there can be nearly 4 feet between the quill and the base.

Still not clear on the practical use of those slots in the base on a floor standing drill press.

If you need to drill a hole in the end of a railing ballister or the like, it can be stood up on end and clamped or bolted to the DP base by whatever fixturing one can come up with.
 

speed bump

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Butte Montana
On a floor standing drill press, there can be nearly 4 feet between the quill and the base.

Still not clear on the practical use of those slots in the base on a floor standing drill press.

We had some jigs that we bolted in those slots for locating the parts. Not having a lathe it was also convenient for drilling and tapping long parts.
 

ovrrdrive

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Sep 13, 2015
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Central Florida
I use the slots on the table for bolting a drill press vise on. I use the one's in the base for bolting the drill press to my home made stand...
 

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CJM8515

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NJ
Its the same principle as the table, you move the table out of the way and can mount a clamp to the base. Its for longer objects.
 

Ign

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Butte Peak ND
On a floor standing drill press, there can be nearly 4 feet between the quill and the base.

Still not clear on the practical use of those slots in the base on a floor standing drill press.

It's called Z-space, and if you're a machinist it's nearly the holy grail. I put a 4" riser block on my Bridgeport to gain, well, just 4" of Z.

One of (but not the only) the primary reasons machine shops keep a DP around is because it will have a lot more Z-space than any vertical mill.
 

Provincial

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Near Salem, OR
Has anyone bought these? T Slot clamping kit

I haven't used that particular brand, but I have used both high-priced American and low-priced Asian (including Harbor Freight) versions of the same thing. All do the same basic thing, which is clamp the work firmly to the table. I had to rework the HF set a little, since the threads wouldn't spin together with my fingers. The threads were very hard, and I believe the studs are very strong and wear-resistant. All the other parts were very hard, as well.

Unless these aren't properly heat treated, they should hold up in a home shop environment.
 

zmotorsports

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It's called Z-space, and if you're a machinist it's nearly the holy grail. I put a 4" riser block on my Bridgeport to gain, well, just 4" of Z.

One of (but not the only) the primary reasons machine shops keep a DP around is because it will have a lot more Z-space than any vertical mill.

Exactly. Sure glad I had my 20" floor mounted drill press last week when a Borg Warner T-18 transmission housing wouldn't quite fit in my mill and I had to drill and tap some holes for a Novak adapter that I was mounting for a client.

Mike.
 
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