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Author Topic: Milling machine is fun!  (Read 1748 times)

Offline Justin B.

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Milling machine is fun!
« on: April 05, 2007, 08:55:40 PM »
Class this week started us on the vertical mill!!!  ;D  Man, I gotta get me one of them things
Justin B.

2004 BMW R1150RT
1981 R100RT - Summer bike, NEKKID!!!

Offline MrRiden

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Re: Milling machine is fun!
« Reply #1 on: April 05, 2007, 10:26:57 PM »
Ahhh, my old pal the vertical mill. I was tutored on one of the huge Bridgeport mills that featured leather belts and steeped pulleys for speed adjustment. Once set all you had to do was mind the backlash on the veneer dials and keep your calculations straight! The old mills each had a characture of their own and once you learned their idiosyncrasies you could operate them with complete confidence in the results. I suppose that you will experience some of the more modern incarnations of this amazing machine tool. Dial speed selection, digital axis readout. and quick change collets. I got out of the trade around the time of paper tape controlled CNC machines. I still remember the excitement of a 4 head tracer ( hydrologically controlled) run amok due to metal chips or a leak. The best machinists were not just those who were competent operators, hell they were common enough. The masters were those who were good at setup. Its all in the setup. I once quit a machining job at AMOL BMW back in the day because I didn't agree with the foreman's prescribed setup for a piece. Ask a lot about proper setups & jigs, The operation part should be pretty straightforward to you judging from what you have produced on yer lathe so far!
Rich
"We can't stop here. This is bat country".

Offline Justin B.

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Re: Milling machine is fun!
« Reply #2 on: April 05, 2007, 11:19:17 PM »
The mill is one of the more "modern" tools in this small college's shop, it's a Brigeport from the late 40s, early 50s.  :P  There is actually an old planer in there!  The majority if the equipment is surplus military.  No DROs anywhere, unless you consider a couple of Harbor Freight digital 6" calipers!

I have decided to get one of these monsters as soon as Harbor Freight puts it on sale, although I never remember seeing the particular machine on sale.  I waited over 2 years before the lathe I was interested in went on sale!  I have snagged some good quality end mill cutters off e-Bay so if I ever do get one I might be able to do something with it.  Although not a heavy piece by commercial standards, the 33686-4VGA model weighs in over 700 lb so if I am ever able to get it I'll have to round up plenty of help to get it into the shop...
Justin B.

2004 BMW R1150RT
1981 R100RT - Summer bike, NEKKID!!!

Offline MrRiden

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Re: Milling machine is fun!
« Reply #3 on: April 06, 2007, 09:34:03 PM »
Reground end mills can be had a bit cheaper than new. The only drawback is in keeping your calculations stright with an odd size mill.
"We can't stop here. This is bat country".