CNC Milling an AR-15 lower from scratch.

The first part of a series on milling my own AR-15 receiver from a billet of aluminum. I designed the receiver in Alibre Design and am using V-Carve Pro and Deskproto for the CAM.

The mill is a converted Seig X3 with a CNCFusion ball screw kit.

The tool used in this video is from Maritools and is a 3/8" 3 flute roughing end mill. It works great in the X3.

This video is a bit boring as it's mostly the machine doing it's thing. I try to do a little more editing in the follow on videos and have more description, and less machining.

Category:

Science & Technology

Tags:

• AR-15
• CNC
• Billet
• Gun
• Seig
• X3
• Milling
• V-Carve
• Deskproto
• Alibre

[cogtag29DOM]

you should use an ir compressor and just blow away the extra aluminum, just a suggestion :)

[kingjamez80]

@cogtag29DOM I'm building a mister right now that will help blow the chips away. I hope it will let me leave the machine while it works.

[kingjamez80]

@danohpsp I am running at the fastest RPM available on the X3. In stock form it is limited to 2000RPM.

[kingjamez80]

@TheAmazingdano: I started with a block of the minimum dimensions that allowed me to make the part and hold onto the part while I milled it.

[semperfi0202]

I like the "Don't tread on me." Nice work

[thmsvrgs]

what mill is that?

[Orionblade2003]

@cogtag29DOM Compressors are dangerous for such tasks... I suggest a conventional shop vac style dust collector. Flood coolant supply would wash the chips away as well, just be sure your table can handle the flow through the drains, or mount an appliance pan under your mill just in case. ;-)

[flrescue33]

what size aluminum block is that and where can i purchase a block that size

[ductape95]

Hi, nice video! Are the files for this available to anyone? Because that would be really cool. Thanks

[danohpsp]

Unfortunately your RPM is WAY to slow for this material and cutter. You should be running as fast as the machine can go.

[twpbaseball10]

wow thats awsome. How much did the machine cost and how does it know the path it has to cut. was this made just for ar-15 lowers or did you use a computer?