3D Printed .22lr

[Eric P]

3D printed goodness.

Printed upper, lower, barrel nut, grip and handguard.

Its only a .22lr based on the CMMG bolt & barrel. 9" barrel.

Pretty light weight, just need to go test it. See how many shots before it melts, if it melts.

The color was just because, its a toy, not meant for to be used for anything other than fun.

84379

[DFBrews]

Well I just got a new printer for Christmas..... guessing the files aren’t on thingiverese though.

What machine do you have?

Infill etc

[Irving]

I'll take it!

[Eric P]

Its on an Ender 3v2.
0.20 mm layer height.
205C print temp. (Go 5C above max temp listed on box)
60C bed temp.
50 mm/sec print speed
edit to add 999 walls (replaces infill)
80% fan
sliced in cura 4.8 with tree supports.

GST3D Filament https://gst3d.com/ Good stuff. wait for sales, it $10/roll now. Inland PLA+ (eSUN) from microcenter is another one that works. Silk PLA has week layer bonding.

Lower is here: https://ctrlpew.com/ds1913-22lr-ar15-lower/ among other files

I modified an upper after if split. get it here https://www.thingiverse.com/thing:4696937, not sure if you can edit the print on the side here https://www.tinkercad.com/things/9hpEnVPcTre

Handguard from here https://www.thingiverse.com/thing:3141064

I had to modify the barrel nut from the above handguard to fit more snug on the upper. https://www.thingiverse.com/thing:4698216

On the charging handle, I filed off the guides since i filled in the channel on the upper. That was a major week spot. Not an issue since the CMMG bolt doesn't move.

[Irving]

What's the weight?

[DFBrews]

Awesome thanks. I got the ender 5 pro. Having first layer issues that I’m working through I sprung for simplify 3D as well. The support algorithm vs cura is night and day at least 2 years ago when i was running a robo3d printer

[Eric P]

What's the weight?

Not sure, but is lighter than the S&W 15/22. I guess I'll just have to take it to work and weigh it. I'm sure Polis will love a ghost gun in a state building... At least its a pistol so I can legally bring it into the building concealed.

[Not_A_Llama]

How is rear pin retention accomplished?

[00tec]

How is rear pin retention accomplished?

Looks like a hex bolt and nut.

[Not_A_Llama]

That's so curious. The front has detent and spring provisions, but not the rear. Would be easy enough to extend a hole and cap with a setscrew, I suppose.

[00tec]

That's so curious. The front has detent and spring provisions, but not the rear. Would be easy enough to extend a hole and cap with a setscrew, I suppose.

Yeah, but no evaporating brass rice grains with a hex bolt.

[Eric P]

The pivot pin works, but is a bit floppy. Yo need a longer pin than mil spec in the back. The bolts just seemed to make a better fit.

[banks74]

That's really cool!