Milling an AR lower from solid, got G-code?

[icentropy]

anyone out there got CNC programs for milling AR lowers or uppers from solid on a 3-axis mill? I'm thinking about trying this after the busy holidays. I looked into the 80% builds but I have CNC mills and lathes as well as 7050-T7451 aluminum at my disposal so i figure what the hell, this should be a fun project.

If no one is willing to give up their programs, how about a solid model? (preferably Mastercam or IGES format).
Oh and if you're concerned, no i'm not doing this as a business, for money we make aerospace parts and have no intention of making lowers for sale, just looking for a cool personal project.

Thanks

[Outta Control]

Let us (me) know what you come up with.

[calshooter1]

this maybe useful

solidworks e-drawings
solid model .igs files
blueprints

http://www.cncguns.com/downloads.html

[savs2k]

Oh man that's alot of g&m code haha. I have the solidworks of it somewhere but you can get it from cncguns too. Run a 1911 80% for me and ill sit there and write the g codes for the ar for you lol jk (maby)

I think the drilling fixtures you need to make will take more time then the actual frame.

[straykiller]

would really like to see the end results make sure to take pics/video of it in process

[_Z_]

Oh man that's alot of g&m code haha. I have the solidworks of it somewhere but you can get it from cncguns too. Run a 1911 80% for me and ill sit there and write the g codes for the ar for you lol jk (maby)

I think the drilling fixtures you need to make will take more time then the actual frame.

Doing the 1911 on a CNC is a lot harder than the AR haha

I think there are like 4 different operations you have to figure out.

[icentropy]

Doing the 1911 on a CNC is a lot harder than the AR haha

I think there are like 4 different operations you have to figure out.

plus i don't know much about 1911s (never had one) but i'm assuming the frame is steel? Aluminum cuts like butter.

My family draws names for Christmas and then makes our gifts instead of buying them. This year I'm making my brother a replica of Blackjack's Mamba knife out of 440C. It's my first attempt at making a knife and I still have to carve the handles (found some nice wavy grained wood for that) and finish the edge, but not bad for my first knife. The hardest part was making the complex curves on the solid model. Since i have no grinders of this kind, and my hand grinding jobs on a belt sander bit the big one, i ended up profiling the entire blade surface on both sides. I have one more week to finish them

[Sky_DiveR]

Looks like a nice set of throwing knives.

[jamesob]

cncguns has the gcode in the forum section.

[icentropy]

cncguns has the gcode in the forum section.

can't find it, could you post a link?

[CHAD PEZZLE]

What control do you have on your mill. I think that will be important to know. Different controllers use different G/M code. So depending on your machine you might not be able to use someone else's code.

If you have the iges file and master cam it's not all that hard to punch one out. It is a lot of setups though. I think 7 or 8 total, pretty time consuming, but that's part of the fun.

I made one before and that was enough. 80% have become way more affordable and more readily available.

[savs2k]

Doing the 1911 on a CNC is a lot harder than the AR haha

I think there are like 4 different operations you have to figure out.

I think the ar has 5 operations if i remember right. But a 1911 has like 11. Thanks alot Z i wanted a 80%. Now i might jsut have to buy yours you tricky guy. Making either will be a PITA if you sit there and do gcode.


Mastercam X > g-code

[smird]

This might also be helpful

http://arlower.ray-vin.com/ar15/

[icentropy]

What control do you have on your mill. I think that will be important to know. Different controllers use different G/M code. So depending on your machine you might not be able to use someone else's code.

If you have the iges file and master cam it's not all that hard to punch one out. It is a lot of setups though. I think 7 or 8 total, pretty time consuming, but that's part of the fun.

I made one before and that was enough. 80% have become way more affordable and more readily available.

I'd either use some older mid 90's Fadals or some 2009 Haas' if i do it. Depends on what's available at the time. We're not a high production shop so there's usually one or two mills that aren't being used for a few days at a time.

I think the ar has 5 operations if i remember right. But a 1911 has like 11. Thanks alot Z i wanted a 80%. Now i might jsut have to buy yours you tricky guy. Making either will be a PITA if you sit there and do gcode.

Mastercam X > g-code

Yeah, I can program, but i'm not our programmer so i'm not very proficient at it. We just got Catia with the prismatic machining plugin so this might be a fun way to learn to use it.

[jamesob]

can't find it, could you post a link?

its posted on there but its linked to another site. here it is.

http://www.homegunsmith.com/cgi-bin/ib3/ikonboard.cgi?;act=ST;f=11;t=6103;st=150