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  • john hobdeclipe
    replied
    Powermatic 1150 and 1150A drill presses seem to sell for 250 - 400 bucks, in good usable condition. These are good quality, general purpose drill presses that will probably do what you need done. Parts are available, new or used. Be sure to use SHARP drill bits.

    Where are you located?

    Leave a comment:


  • gellfex
    replied
    Originally posted by piniongear
    I have been following this thread for a bit and I agree with AB here.
    Any drill press made in China, and most of them made in the US for that matter will chatter like nothing you have ever seen with a 1 inch drill bit drilling 1 inch thick steel plate at 300 rpms.
    So, if tickets are available to see that show I will take one please.
    When I drill plate with anything larger than a 5/8 inch bit I do it on the mill, not the drill press.
    And the mill is running in back gear also, turning perhaps 50 rpm. The result is the bit takes a large bite into the steel as it slowly turns. The chip is a continuous spiral of metal coming out of the hole as it is produced.
    No chatter, no smoke or noise, just a nice round hole produced. If I tried this on my 15 inch Rockwell/Delta industrial drill press turning 300 rpms the thing would chatter so much that it would probably loosen the chuck arbor. Either that or the bit would stick in the hole and I would spend 15 minutes getting it unstuck. The mill is the only way to go if you have to drill a large hole in thick steel plate..........pg
    I'm curious, do you pilot drill, and what size? I tend to drill about the width of the drill web for stuff like that, but I don't do it often. The VFD on my Rockwell 17" will get the speed down pretty low without cogging.

    Leave a comment:


  • J Tiers
    replied
    Older Clausings are able to go up to 1", and may have a minimum speed only in the area of 250 RPM. But they came with at least a 1 HP motor.

    They might chatter when starting, but quiet down when the drill is in the hole..... I have only had to go to about 0.750" with mine, but it does work.

    Leave a comment:


  • MickeyD
    replied
    If you are not trying to drill a 1" hole in 1" steel, a couple of nice used drill presses to watch out for that can fall in your price range are the Clausings, the older Deltas, and older Powermatics. I have a 15" variable speed floor standing Clausing and it is sweet. Another board member bought a beautiful benchtop Clausing that would fit in your budget, the thing looks brand new. Years back I had an "Industrial Duty" Craftsman from the 70's, and it was a pos, so I would stick with a real brand if possible.

    Leave a comment:


  • piniongear
    replied
    Originally posted by aboard_epsilon
    i would like to see you turn 400 rpm, on a one inch drill, on a cheap chinese drill press, with no flood coolant or power downfeed.....it would be toast at 200 rpm............that's if it didnt vibrate its self out of the morse taper.

    all the best.markj
    I have been following this thread for a bit and I agree with AB here.
    Any drill press made in China, and most of them made in the US for that matter will chatter like nothing you have ever seen with a 1 inch drill bit drilling 1 inch thick steel plate at 300 rpms.
    So, if tickets are available to see that show I will take one please.
    When I drill plate with anything larger than a 5/8 inch bit I do it on the mill, not the drill press.
    And the mill is running in back gear also, turning perhaps 50 rpm. The result is the bit takes a large bite into the steel as it slowly turns. The chip is a continuous spiral of metal coming out of the hole as it is produced.
    No chatter, no smoke or noise, just a nice round hole produced. If I tried this on my 15 inch Rockwell/Delta industrial drill press turning 300 rpms the thing would chatter so much that it would probably loosen the chuck arbor. Either that or the bit would stick in the hole and I would spend 15 minutes getting it unstuck. The mill is the only way to go if you have to drill a large hole in thick steel plate..........pg

    Leave a comment:


  • wierdscience
    replied
    This is about the smallest machine around that will handle a 1" drill in steel-

    http://grizzly.com/products/12-Speed...ll-Press/G7948

    $691 including frieght.

    #4 MT and nearly 400lbs it will run a 1" bit in steel.

    Now if you need to drill 1" holes 7 days a week,then something bigger is needed.

    Leave a comment:


  • chrisb
    replied
    Originally posted by piniongear
    My bother has a mill at his work I could use however he lives two hours away.

    There you go. You have just answered your own question.
    Yes and No...

    The Bosses father (that owns everything) is one that can get a knot in his knickers over something that he didn't give a hoot about yesterday. I'd prefer to avoid that option for that reason. The guy wouldn't say a word while I'm there just make my brothers life miserable the next day.

    Leave a comment:


  • softtail
    replied
    Gotta love the internet. I was over on a gun forum and a guy asked what hand gun is best for home defense. Folks kept on replying with bigger and biger guns until they told poor guy he should have an Uzzi under his pillow.


    To answer your question, the mill idea sounds good.

    But if you want to buy a dp, there are tons of nice old American dp's out there, often with 1hp+ motors, and power downfeed. If they aren't slow enough for you, wire up a vfd. Since 1" holes will be occasional for you, a nice heavy 17" or so Delta or the like with proper feed, speed, fluid, and work clamping would be fine mixed with some smarts when you are doing it.

    Leave a comment:


  • Milacron of PM
    replied
    Originally posted by chrisb
    Second post in the thread..."but nothing under $4000 is going to do the trick"

    Guess it's all in how you read the posts..
    I'm sure he meant *new* prices but I can see now how you reached the conclusion you reached...I thought you were referring to the $4,500 Alzmetall that I offered...mea culpa

    Leave a comment:


  • chrisb
    replied
    Second post in the thread..."but nothing under $4000 is going to do the trick"

    Guess it's all in how you read the posts..

    Leave a comment:


  • piniongear
    replied
    My bother has a mill at his work I could use however he lives two hours away.

    There you go. You have just answered your own question.
    A 2 hour drive is well worth it.
    You need to drill 1 inch holes into two 1/2 inch plates at the same time using the plates mounted on a milling machine and put it in backgear. This will give you the needed slow speed and more importantly, the needed torque to get the holes drilled easily. I would never use a drill press for this exercise myself, if I had access to a mill. (for the record, I do own my own Bridgeport and drill press)
    Just my opinion of course.............pg

    Leave a comment:


  • Milacron of PM
    replied
    Originally posted by chrisb
    I posted the same question over on PM. I was basically told I needed to spend 4k on a radial drill press.
    No you weren't... a $4,500 radial drill that is available was mentioned but NO ONE told you you need to spend $4K on a radial drill press.

    In fact if you are in the right place at the right time...i.e. a live machine tool auction....you can often get a nice very heavy duty Allen or Avey drill press for 200 bucks.. maybe even less if it's particularly dirty or flaking paint.

    Example of Avey here - http://www.reliabletoolmachine.biz/images/Avery_3.JPG
    Last edited by Milacron of PM; 01-01-2009, 05:56 PM.

    Leave a comment:


  • chrisb
    replied
    I do need to drill 1" holes. In the 1" plate its actually two 1/2" plates stacked on top of each other they need to be exact duplicates. I figure the easy solution to avoid layout/drilling screwup and having misalignment was to tack weld the two pieces together and drill thru both at once.

    I posted the same question over on PM. I was basically told I needed to spend 4k on a radial drill press. One guy mentioned a Rigid Tool drill press and the post was deleted later because he mentioned a tool made in china.

    My bother has a mill at his work I could use however he lives two hours away.

    I see Grizzly bumped up the prices on drill presses today vs. yesterday. New year new prices I suppose.

    I've had my eye on CL for a couple weeks hopefully something will turn up.

    Leave a comment:


  • rmack898
    replied
    Slight hi-jack here. Bad Dog I have the same drill press as you do but mine is missing the depth stop, could you post or send me a pic of the stop so that I can make whatever I'm missing on mine?

    Thanks

    Leave a comment:


  • J Tiers
    replied
    Originally posted by aboard_epsilon
    i would like to see you turn 400 rpm, on a one inch drill, on a cheap chinese drill press,
    No thanks........ it would probably drop its cookies at 100 RPM..... which it will be going pretty soon anyhow, if not 0 RPM, if you try that...

    Point is that the speed itself is not the issue, which you seem to be agreeing with. You DO need the power to go with the speed.

    Leave a comment:

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