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Atlas Benchtop Drill Press Direction

bri_man57

Well-known member
Joined
Mar 6, 2013
Messages
189
Location
Windsor Colorado
Hey Gents,

Looking for some advice on a direction to go with my atlas benchtop Drill Press.

So, as far as I can tell, this is from around the 1940's, I say this because the research I have done suggested that in the 50's, they changed the head design. I do really like this drill press, its runs true, its old American metal, and it was gifted to me by a family member.

I have been using it and it WAS doing okay, I had an issue that every once in a while when I would start it, the motor would make a much louder noise like the starter contact was sticking and it would start smoking! A quick turn off and back and it would work fine. So I knew the motor was going to need replacing. Well, on Sunday, I was using it and the motor decided to let all of the smoke out :( . It doesn't turn on anymore, so time to do something with it.

I do mostly metal drilling. I use rota-broach alot and has been doing pretty good, but some bigger drills will make the belt slip, and I feel like the 1/4HP motor is pretty low HP for drilling hole saws through metal (pretty much worst case). I could be wrong, I typically had access to a bigger drill press so wasnt "pushing" this one as much. Current living situation, dont have anymore wall space for a floor drill press (which I have one is storage, but that one needs a VFD, has a production table, and doesnt go lower than 330 RPM, hole different thread is needed for that when I get my own spot), so would like to keep a benchtop setup.

The night it happened I hoped on criagslist and saw a Grizzly Benchtop, 3/4hp, went all the way down to 140 RPM (uncommon for benchtop units). Guy was asking $350, I tried to hop on it while realizing I would just sell this atlas for next to nothing. Grizzly sold before I could snag it, so got me thinking about resurrecting the atlas again.

Now, even though I like this little guy, it only has a 1/4" HP motor, which I wouldnt buy if it I were on craiglist. Also, the belts dont look factory to me, they are small. The guy who had this originally was a machinist so it wouldn't surprise me if the pulleys were not original. It has the speed reducer middle pulley, but I am not convinced this is a factory version of it.

So my thoughts are, and what I wanted some input on, to maybe throw at least a 1/2 HP motor on there. Its a 56Z frame, which means a 56 mount and the motor is the non standard size, and is 1/2".

If I put a 1/2HP motor on it, it should be a solid little DP, but do these belts stand a chance? If I do put a motor on it, should I be looking at pulleys/belts that are more traditional sizing? Do I have a chance of getting into the mid 200 RPM range if I go that route (I have no idea what the slow speed is currently). If i do all of this, what if the spindle bearings are rough not too long after? Are they something I can find?

I'm not exactly interested in restoring machines, and dont want to be tons of cash into this guy, but I feel like it might be worth it. Especially with the quality that is out there now.

What would you guys do if you wanted to drill metal with this guy??

Any input is appreciated!
 

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Cruzan80

Well-known member
Joined
Jul 22, 2015
Messages
4,167
Location
Denver, CO
Yeah, those are definitely not the OE belts. To do it "right", replace the motor with a 1/2hp, replace all the pullys (spindle one is the trickiest, Jziggy sells a middle pulley option), and put it back into service. However, it isn't going to be the cheapest way. My guess is the cheapest you will get out of it would be 200-250, unless you happen to have a source for spare parts/motors.

Comes down to how much you like this press, and how much it would cost to replace it. Yes, it is 30-40s vintage.

Sent from my IN2015 using The Garage Journal mobile app
 
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bri_man57

Well-known member
Joined
Mar 6, 2013
Messages
189
Location
Windsor Colorado
Yeah, those are definitely not the OE belts. To do it "right", replace the motor with a 1/2hp, replace all the pullys (spindle one is the trickiest, Jziggy sells a middle pulley option), and put it back into service. However, it isn't going to be the cheapest way. My guess is the cheapest you will get out of it would be 200-250, unless you happen to have a source for spare parts/motors.

Comes down to how much you like this press, and how much it would cost to replace it. Yes, it is 30-40s vintage.

Sent from my IN2015 using The Garage Journal mobile app
Appreciate the input, I think your cost is appropriate. I'm seeing motors for 110 to 150.

I guess a different question is, if I do this,will I end up with a better press than if i can buy for 250?

Is Jziggy a member here?

The other option is I could motor slap it and leave the belts? They just don't look likey the will hold much resistance, but I could be wrong.

Sent from my SM-N920T using Tapatalk
 
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bri_man57

Well-known member
Joined
Mar 6, 2013
Messages
189
Location
Windsor Colorado
Another picture of the spindle pulley. Not sure exactly whats going on here. Appears to be some kind of adapter
 

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