Renovating an old drill press

 by marshon
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finished001.jpg
This is quite a long instructable. It's not really a 'how to' as such because different models, sizes and ages of drill press will require different repairs, adjustments and techniques to renovate.
This is more of a 'how I did this one', and there's no way to cover everything, I can only describe what was needed to get this drill press back up and running.

My reason for doing this project was purely practical. I needed a drill press for my 'micro workshop' and I had no money to buy even a good second hand one. Cost had to be kept to the absolute minimum, whilst giving me a practical, usable tool at the end. It's a bit of a gamble because the drill could have turned out to be beyond repair and therefore a waste money.

I waited and searched for a drill that was ready for the scrap yard. It had to be quoted as 'working' but I knew that this would probably mean that it would turn when the motor was switched on. It took me two months to find one.

 
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Step 1: The drill on arrival

drillpress.jpg
drill_press_delta_1931.jpg
Here's the drill as I got it. It cost me £5.00 GBP.(about $8.00)

The first thing to do is to check the drill over and try and figure out exactly what you have bought BEFORE you start working on it.
The second image shows the general arrangement of the standard drill press from 1931. Some have a lot more parts than mine, but the main areas of interest are the condition and accuracy of the base, the main pillar (column), the table, the spindle, the quill and the chuck.
This is the correct drive pulley system for the pattern of drill I purchased. Do a little research before you start work.

Everything was covered in light surface rust and the shite of a hundred years worth of use (the drill was made between 1899 and 1914). The paint work was a multitude of colours with at least three layers of paint, all poorly finished. The motor mount was a homemade item that was badly fitted and totally wrong for the drill, the drive belt pulley was the wrong type and size for the drill, the ancient key-less chuck had a broken jaw and wouldn't tighten, and most seriously, the quill rack and pinion gearing was U/S and kept jamming. The ball bearings were pitted and rusty.
The motor wiring was dubious at best and dangerous at worst, there was no on/off switch, the motor started as soon as it was plugged in.

But the drill DID spin up when the motor was turned on (although the motor stalled at start up). So not a total disaster. there was some slop or 'wobble' at the chuck (about 30 to 40 thou on my dial gauge) but the bearing cup was also a little loose so maybe that could be improved upon.

All these problems needed testing, investigating and correcting.

angpal59 says: Jan 15, 2013. 9:30 AM
I bought this on ebay for the motor, this is how it came, but nor did the guy that I bought it from knew what is was or did anybody else on instructables. It sure looks like your set up, maybe you know what it is, I sure hope so. lol, Sincerely angpal59
DSCI0055.JPGDSCI0056.JPGDSCI0057.JPGDSCI0058.JPGDSCI0055.JPGDSCI0009.JPG
LynxSys says: Feb 25, 2012. 6:59 PM
I neglected to state the obvious in my earlier comment: This is beautiful, meticulous and very impressive work. I commend your patience, and love to see an old tool so faithfully and well restored!
LynxSys says: Feb 25, 2012. 6:52 PM
If you're just up against rust (or rust is the layer under the paint and grime that you're trying to lift), consider electrolytic rust removal. It will save you a lot of elbow grease. You might have a look at ToolNut's excellent Instructable on the topic: http://www.instructables.com/id/Electrolytic-Rust-Removal-aka-Magic/
eric m says: Jan 13, 2012. 11:02 PM
I wish they still sold these. One motor kit with lathe,drill press, grinder would be nice.
sockless in reply to eric mFeb 25, 2012. 6:29 PM
From some searching, they are around, but they don't make them any more. You can also buy new, but they aren't that cheap:
http://www.northerntool.com/shop/tools/product_7171_7171/
That one is only a drill/lathe combo, but you could probably rig up a grinding wheel and put it in the chuck of the lathe.
vincent7520 says: Mar 4, 2011. 5:21 PM
I don't even have to read the whole instructable to tell you this drill press is fantastic … 
we had one in one of our workshops and it runned perfectly well and very very smoothly, with little effort on the material
May be I'm wrong about the one being posted but ours had a stand that could be revolved : on one you had a mechanical vice with a deep groove on the plate preventing oil to drop on the ground, on the other side it had a simple plate used to drill wood …
Perfect ! …
marshon (author) in reply to vincent7520Mar 4, 2011. 6:05 PM
Ive been using the drill press since I wrote this instructable, and it has behaved beautifully throughout.
My only concern is the neoprene belting I have used which does not have a high 'grip'. I have been looking for an alternative 3mm or 4mm belting system to improve this.
vincent7520 in reply to marshonMar 5, 2011. 2:27 AM
actually ours have a very large leather belt and we were lucky enough that it came with a whole load of loaves of a paste that was probably made from honeycomb wax (well it was sticky as that but I really don't know) and this had the ability to give grip to the belt
We never ran out of it as far as I can remember but I doubt if one could find any of the stuff now… maybe a substitute ?…
marshon (author) in reply to vincent7520Mar 5, 2011. 8:27 AM
Mine was almost certainly a round belt model. Both the head pulleys and the motor pulley had round belt drives. The base lay shaft may at one time have been a flat belt system since a lot of workshops around the turn of the century were steam powered with common power shafts running near the ceiling.

I may eventually look around for a rubber drive belt solution.
pfred2 in reply to marshonNov 5, 2011. 9:10 AM
It may cost you an arm and a leg but maybe you can find a surplus O ring that would work as a belt? They make some gigantic O rings.
vincent7520 in reply to marshonMar 6, 2011. 4:14 AM
This is a good idea as to day they make all sorts of rubber belts that withstand a huge amount of strain …
have a good week end (if my writing is not too late : I' can't tell if you're in NZ or USA, for isntance !!… :D
Bosch4k says: Jul 24, 2011. 12:49 PM
Great Job! I have one very much like that, and now I feel I can attempt to revive it.
Two questions: what is the name of that tubular-looking belt you're using? Never seen it before. And since I have no motor on mine, what speed should I shoot for at the drill? Thanks a lot!
-Mike
marshon (author) in reply to Bosch4kJul 25, 2011. 12:50 AM
The round stuff is neoprene drive belting, and it's not very good, a bit liable to slip.
My drill runs from about 300 RPM to about 800 RPM
ccoalex says: Jul 8, 2011. 12:26 PM
Very well done Marshon.
Congratulations !
CCOAlex
gary.918 says: Jul 7, 2011. 9:28 AM
very cool
frammis says: Mar 12, 2011. 3:47 PM
I neglected to add this source for round drive belts.

http://www.lathes.co.uk/page4.html

frammis says: Mar 12, 2011. 2:58 PM
What a beautiful job!

I love it when I see old tools such as this being restored to working order.

Congratulations on your efforts and success.

(I restored an Atlas/Craftsman metalworking lathe from the 1930's in similar fashion. I brought it back to working order after it sat neglected and unused in an open garage for over 40 years - I didn't take any pictures though.)

harvey639 says: Jun 16, 2010. 10:49 AM
what is the model and brand of your lathe? great instructable i love it wish i had a drill press like it!!!
marshon (author) in reply to harvey639Jun 16, 2010. 12:06 PM
The lathe is a Unimat 4, it's a far eastern model not an Austrian one.
harvey639 in reply to marshonJun 18, 2010. 7:31 AM
thank you!! once again great instructable!!!!
gerardopenya says: May 29, 2010. 9:10 PM
I love it!! How I wish to have one of those!!

Keep drilling!! ;)
bongodrummer says: May 29, 2010. 9:47 AM
 Lovely! Nice colours and everything... Are you tempted to make some kind of polycarb belt guard?  Might spoil the minimalist look a bit but worth considering. 
omnibot says: May 29, 2010. 3:50 AM
That is a fine addition to any workshop.
seolfor says: May 28, 2010. 6:18 PM
Very nice renovation.  It is great to see someone with a passion for the tools, who would also take the time and care to do this.  Wonderful!
steliart says: May 28, 2010. 3:40 PM
Very good renovation
Tool Using Animal says: May 28, 2010. 10:54 AM
That is a beautiful little drill press.

Maybe you mentioned it, but OWWM is an awesome resource for rebuilding old tools.
rimar2000 says: May 28, 2010. 10:29 AM
Very good work!
BobS says: May 28, 2010. 7:51 AM
I want one!!!
danilo.bar1 says: May 28, 2010. 7:31 AM
I like it !

^_^
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