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> Lessons in stupidity, Why not to use a drill press as a mill
TonyAKAVW
post Dec 7 2004, 11:44 PM
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So I have been stuck at home with the chicken pox the last week and a half getting stir crazy when I decide to work on a project. I have this large round piece of aluminum that I need to turn down a bit. Lacking a large enough lathe I decided to mimic a milling machine and turn it down with a half inch end-mill. I fixed up a suitable clamping arrangement and was about half way through the job when the chuck in the drill perss decided to come loose. The exceeedingly sharp half-ich end mill in the now falling (and spinning) chuck found its way to my hand. Many foul words and a decent amount of blood followed. As well as trip to urgent care. So, several stiches later I no longer have a gaping hole between my index and middle fingers, and the two other cuts on my index finger are under control as well.

So the morale of the story is, dont use a drill press as a milling machine. As tempting as it looks, there are some KEY differences. I did get lucky, this thing coulod have hit my hand much worse and caused much worse injury.

I have a renewed respect for sharp hardened steel spinning things.


-Tony (IMG:style_emoticons/default/headbang.gif)
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ChrisFoley
post Dec 8 2004, 06:21 AM
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I bought a "collet chuck with holding collar" from Sears a long time ago that attaches to a drill press and hlods up to a 3/8" shank. It eliminates the problem you experienced, but the quill of a drill press just isn't up to the side loads of milling.
I had one of the Mill/Drill units that MSC (and others) sell for about $1200. It worked pretty good, but the lack of a "knee" makes it very difficult to do plunge cuts.
Nothin' beats a good used Bridgeport for allaround general metal working, including using it as a small lathe.
I suppose you'd have trouble carrying one into an apartment though. (IMG:style_emoticons/default/unsure.gif)
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Posts in this topic
TonyAKAVW   Lessons in stupidity   Dec 7 2004, 11:44 PM
sixnotfour   Carefull 10 years ago I had to empty a co-workers...   Dec 7 2004, 11:49 PM
rick 918-S   Keep an eye on it. You wouldn't want a nasty i...   Dec 7 2004, 11:50 PM
TonyAKAVW   I started the anti biotics already, and they are g...   Dec 7 2004, 11:57 PM
Aaron Cox   i put a screwdriver through my hand before.... :o...   Dec 7 2004, 11:58 PM
nebreitling   nice story -- thanks for the lesson. last night i...   Dec 7 2004, 11:59 PM
Mueller   ouch..... I'm picking little metal slivers ou...   Dec 8 2004, 12:09 AM
TonyAKAVW   So I guess I should ask for a milling machine for ...   Dec 8 2004, 12:21 AM
MattR   okay? :ttiwwp:   Dec 8 2004, 12:21 AM
TonyAKAVW   allright, I will take a pic tomorrow at the doctor...   Dec 8 2004, 12:48 AM
ThinAir914   Somehow I knew that someone was going to say this ...   Dec 8 2004, 02:00 AM
Racer Chris   I bought a "collet chuck with holding collar" from...   Dec 8 2004, 06:21 AM
vsg914   I'm a cabinetmaker by profession. I've had...   Dec 8 2004, 07:48 AM
Bleyseng   Has anyone seen the new table saw with the "instan...   Dec 8 2004, 08:48 AM
Root_Werks   <...   Dec 8 2004, 11:43 AM
jwalters   :o I had to put a screw driver thru an oil filter...   Dec 8 2004, 11:49 AM
balljoint   I have seen my own patella, thanks to a walking sp...   Dec 8 2004, 12:18 PM
Aaron Cox   split my shin open....saw taht bone :o when the ...   Dec 8 2004, 12:23 PM
davep   You guys are sick, sick I tell you. Now so am I. :...   Dec 8 2004, 12:32 PM
ClayPerrine   Years ago I pulled the tranny on my 914. The cone...   Dec 8 2004, 01:25 PM
scruz914   <...   Dec 8 2004, 02:16 PM
vsg914   A joiner is another tool I won't have in my sh...   Dec 8 2004, 03:22 PM
Tom Perso   That is friggin amazing. How does it sense the wa...   Dec 8 2004, 04:22 PM
scruz914   ...   Dec 8 2004, 04:26 PM
scruz914     Dec 8 2004, 04:31 PM
Carl   This isn't tool related but ... Back in the 70...   Dec 8 2004, 05:05 PM
vsg914   scruz, I have a jig for my planer to accurately ed...   Dec 8 2004, 05:56 PM
anderssj   Tony, When's the last time you had a tetanus...   Dec 8 2004, 06:12 PM
dinomium   Worst thing I have ever heard from an ER doctor: "...   Dec 8 2004, 06:23 PM
PatW   A few months ago. #1 smart ass in class decides to...   Dec 8 2004, 06:48 PM
scruz914     Dec 8 2004, 07:15 PM
vsg914   scruz, I make all my own jigs and fixtures. It...   Dec 8 2004, 09:00 PM
vsg914   Oh Tony, sorry for the thread hijack.   Dec 8 2004, 09:01 PM
rickso71   Tony, Bet the stitches made you forget all about ...   Dec 8 2004, 09:18 PM
tracks914   Good tool story A co-worker of mine was doing some...   Dec 8 2004, 09:22 PM
TonyAKAVW   No problem with th thread hijack. After reading a...   Dec 9 2004, 01:28 AM
14Maschine   Machining is dangerous as hell! But someones g...   Dec 9 2004, 01:35 AM
Kevin@ojai.net   I was playing around in the shop yesterday. Its a...   Dec 9 2004, 01:52 AM
TonyAKAVW   Wow, nicely made Kevin. If there's one thing ...   Dec 9 2004, 04:23 AM
Kevin@ojai.net   If your looking for some machine tools you should ...   Dec 9 2004, 06:07 PM


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