Stock Comb build

[yoderjac]

Now that the season here is over, I'm focusing on upgrades for next year. I had one of those strap-on type comb extenders like you see in the background on my SML. It really wasn't high enough for good eye alignment. Rather than putting padding under it, I decided to try to 3D print a custom one. I'm still learning to print with softer TPU. I don't have that down yet. I decided to prototype it with TPU 95 for AMS which is stiff but easier to print.

This prototype aligns my eye perfectly. Once I get the correct nozzle, I'll try printing it in TPU 85A and in a less flashy color. It simply slips over the stock. I'll probably add custom pockets for carrying bullets, powder, and modules to the final version.

 

[yoderjac]

I finally got the correct nozzle to print in TPU 85A. This filament is much softer and more rubbery and can't be printed directly from the AMS. It took a lot of fooling around and bypassing the filament buffer, but eventually I was able to print it. You can see in the video how much the TPU gives:

Just for fun, here is a time lapse video of the build itself. TPU 85A must be printed very slowly, so this build took over 14 hours.