UDL XM1014 single-shell compatible with floating inner barrel

The UDL XM1014's water bullet shell is a bit pricey, and I couldn't bear to throw it away directly, so I designed this 3D printed shell. Using a bullet collector net caused rattling during operation.

I originally planned to sell it on Xianyu to recoup some of the money I spent on new equipment, but it was flagged as weapon ammunition, resulting in a 7-day ban, so I decided to open-source it T-T

This shell is adapted for the floating inner barrel, modified for front-loading, addressing the problem of the original shell's tendency to leak due to excessive impact forces during loading. The rear also uses a silicone pad,
resulting in excellent airtightness.

It has undergone rigorous strength testing and is highly durable, a four-wall thickness means that it's resilient even under significant stress, and the edges will not be damaged even with rough handling.

The project's default two-wall thickness with PLA+ is sufficient. If you require enhanced strength, adjust the wall thickness as needed.

Regarding the sealing gasket

I used silicone tubing, cut to the following specifications:

Insert the tube into the rear and cut it as evenly as possible. Minor irregularities will not affect the airtight seal.

I'm also working on a shorter version of the 1014 shell. Shortening it allows the magazine to hold 6+1 rounds without any modifications.

You can see in the image a shorter shell section. The current issue is that the reduced length prevents the ejection hook from engaging; I may need to add some spacers inside the *launcher* tube. I'm still experimenting, and welcome your input.