[madmachinistm1a1]

Just checking in on an awsome site, got a few questions.Who's got goods kits, they seem to be be very hard to find. I'am getting a vertical mill delivered on Thursday morning so I thought I would turn it loose on a cool project. It's a 9X45 table 2HP, with DRO. Is it going to be big enough to build a semi? What kind of material is the side plate made from,4140 or tool steel like a-2 or something. Or would cold-rolled steel work? Any info would be great.

 

[Dan @ Angola Armory]

Cole Distributing on the replacement parts sets.
Dan

 

[Lucky#13]

Just checking in on an awsome site, got a few questions.Who's got goods kits, they seem to be be very hard to find. I'am getting a vertical mill delivered on Thursday morning so I thought I would turn it loose on a cool project. It's a 9X45 table 2HP, with DRO. Is it going to be big enough to build a semi? What kind of material is the side plate made from,4140 or tool steel like a-2 or something. Or would cold-rolled steel work? Any info would be great.

Not being familiar with the specs on mills, I can't comment on the adequacy of your machine. But there are plenty of machinists here so someone will pipe in. As to material, 4130 and 4140 are the common choices. Some have used 4142 pre hardened as well. Tool steel is overkill by far. The original 1917s from WWI, when John Browning was supervising from the Colt's factory in Hartford, were indeed made from cold rolled steel. That was upgraded after a while, but many folks here have guns built on kits with old 1917 left side plates of cold rolled, whether they know it or not. They are easy to identify if you know what to look for. The later drawings call for 4640 I think, but I doubt that is a practical choice today.

 

[Ouchman]

one eyed Lucky( for now) isn't 4640 used for gears and such? Any idea why it was called for? Isn't it highly dense, not very porous. Used in a rear diff. drenched in heavy 90w oil but in a high wear weapon? Any input?
Anyone else with any input on this?

 

[Lucky#13]

one eyed Lucky( for now) isn't 4640 used for gears and such? Any idea why it was called for? Isn't it highly dense, not very porous. Used in a rear diff. drenched in heavy 90w oil but in a high wear weapon? Any input?
Anyone else with any input on this?

Not being a metalurgist, I don't have much I can tell you. That's what the 1948 drawings call for. Since that set does not even list the previous revisions, one would have to dig a bit to find when the switch occurred. What I do know is that the original drawings for the 1917 called for cold rolled steel. A revision changed that to a stronger steel, but it had no specs that make sense today, just a letter designation. I don't even know when the 4000 series steels first appeared.

 

[57Strat]

I second the recommendation on Cole's Dist for parts kits, parts, tripods, mags, links, ammo etc. Everything I've ever bought from Cole's has been better than advertised. Cole's is one of the best vendors out there to do business with.


Here's the link:

http://www.coledistributing.com/

 

[Starvingboy]

Depending on how new you are to this, you might hit a build party. It's a good way to check this stuff out and see how it all goes together. Also, 30calmachinegunner is the guy to send your internals to if you don't want to do it yourself. I'm sure you've seen his name come up if you've poked around the site a bit.