Drain Blaster Little Rocket Adapter, no glue no screws

This is an attachment for most drain blasters that will allow you to use Out of Darts Little Rocket barrels. There's not much to it. It's two printed pieces and one or two orings for sealing. No screws, glue or other hardware are required to put it together. This can be used in conjunction with the Silly Shell QR Chuck that I also designed.

I made a couple small changes to the little rocket socket geometry to allow barrels to be swapped easier and faster. If you've tried to use LR before but found everything too tight, try this model.

I print with the little rocket side of the adapter facing up, and use grid supports for the side facing down. There's a small overhang that requires them. Layer height and nozzle size don't really matter. All files in the archive are oriented in their printing directions.

Oring needed: 21mm x 16mm x 2.5mm quantity 2

Assembly:

1. Place nut over the nozzle end of the drain blaster.
2. Put oring inside the blaster side of the adapter and press onto the drain blaster nozzle.
3. Tighten the nut. Tighter than you think you need to. If you printed in PLA, you may need to use the included tools in order to get it real tight. The 17mm oring should be pressed between the nozzle and adapter and the friction should mostly hold it steady.
4. If you have a drain blaster similar to the one in the photos, you can slip the included collar over the adapter so that the notches engage with the nozzle and hold the adapter straight.
5. Put oring in the little rocket side of the adapter.

(Assembly Video Soon)

Safety Notes:

Proceed with making this adapter at your own risk. No safety guarantee is given or implied. Working with high pressure air can be dangerous! These drain blasters are capable of holding at least 7 bar (over 100psi!) which is a lot of stored potential energy. There is no safety mechanism on the release switch, and accidental discharges can happen VERY EASILY! Furthermore, these blasters are not designed for the type of use we put them through, and catastrophic failure is always an option. Please use this device with extreme caution and always keep anything living at least 15 feet away from the muzzle. Always wear eye protection. If using pressures in excess of a half bar (7.5psi) hearing protection is recommended as well. I do not recommend firing projectiles at anyone using more than 1 bar of pressure (15psi) because it is well in excess of speeds that can hurt someone. It's unlikely that any configuration of this adapter with a drain blaster would ever be game legal without some serious restrictions. (For what it's worth, I'm looking into easy ways to limit pressure on these.) This is primarily a novelty.

To put the power of this blaster in perspective, a half bar is enough pressure to send a single Mega XL 100ft or 30 meters. On my blaster, it takes 8 pumps to reach a half bar. Mega XL will fire at stock levels with 3 pumps, which doesn't even register on the pressure gauge. Anything over 4 bar usually destroys singled darts of any size.

Stay tuned to my profile as I release larger and more ridiculous attachments for this thing. There is a lot you can do with that much pressure!