Got a few more ducks in a row for hybrids and related projects.
- got a used precision level and leveled and aligned my lathe properly
- cleaned the CO2 tanks for use with nitrous. I soaked them in water with cleaning solvent over night, rinsed them multiple times and dried them using a heater blowing at the tank while an aquarium air pump flushed them by pumping air through a syringe filter and a hose into the tank.
Did the same again but used acetone instead of water/solvent. One of the paintball tank had quite some gunk in it...
- finalized the code for the Arduino teststand. Would've taken me forever but a friend suggested I'd use ChatGPT which worked quite well. Translating "human" requirements like "measure thrust and safe that in a file on an SD card" to code has never been easier I guess... Interesting, convenient and somewhat frightening.
And I put the freshly leveled lathe to use and started making parts for a 54mm motor. The casing is 258mm (just over 10") long and should house enough fuel to get it into the K range.
View attachment 639212
View attachment 639211
The injector assembly will be the same as on the 38mm so parts are interchangeable. I have some more machining to do before my club's hybrid test day in two weeks but I'm pretty sure I can get it done