CNC Router 80% lower

[Danimal]

Deleted

[porterdavid98]

What brand router are you using? Manually writing G code? Any CAM software or controller capabilities for simple pocketing?

Sorry I missed your post. I have a Laguna IQ which came with Vcarve Pro software. I am kind of embarrassed to admit to how many 80% lowers I have completed. The point to be made here is I have done very well using a Jet vertical Mill with manual feed. Even have experience using the so called universal jig. I am not using a drill press for any milling operations. I am most impressed with the 5D jig but how the heck does anyone justify that price?

Still, apparently my biggest problem so far using the CNC Router to do an 80% lower involves understanding the difference between feed rate of the head motion and the surface feed speed of a rotating tool. I need to slow down even more. That is where the guidance that I need probably is located.




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[porterdavid98]

80percentarms just 1 upped everyone. New universal jig that does ar15 and ar10

New universal jig better than the 5D?

I did do some research looking at 80% arms jig but the biggest key point regarding the 5D jig and what separates it from everybody else is the trace outline of the guide. Everybody else uses the exact cut out shape and dimensions from a AR15 blueprint. The 5D made a pattern outline allowing for a guide pin that does not make the jig touch the end mill itself. Clearly a superior design for a handheld router. However, my original post asked for help using a CNC Router.


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[00tec]

New universal jig better than the 5D?

I did do some research looking at 80% arms jig but the biggest key point regarding the 5D jig and what separates it from everybody else is the trace outline of the guide. Everybody else uses the exact cut out shape and dimensions from a AR15 blueprint. The 5D made a pattern outline allowing for a guide pin that does not make the jig touch the end mill itself. Clearly a superior design for a handheld router. However, my original post asked for help using a CNC Router.


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The new 80percentarms jig is advertised as no jig/mill contact and does ar15 and ar10. That alone makes it better for me.

https://www.80percentarms.com/produc...15-and-308-jig

I realize you were hunting CNC advice, but we get sidetracked easily. SQUIRREL!

[henpecked]

A cnc router with a spindle of 30,000 rpm feeding at 120 inches per minute produces a .001 tooth load on a 4 fluted 1/4 end mill. You really should be using a 2 flute so the coolant can get in there. You should do light passes at that speed. No more than .01 depth of cut and you do need to spray it with wd-40. Your cutter passes should be at 55 to 75% of the width of the cutter. You can always PM me with your router specs and the cutter you will be using and I can give you the feed rate of the cutter.