Hi! I want to 3D print this aerospike nozzle (approximately 22 mm outer diameter).

It would be attached to a tube containing potassium nitrate and sugar propellant.

I'm looking for a low-cost material that could withstand at least one firing.

What material and type of manifacturing would you recommend?

Thanks!

One of my biggest pains with the HP 3D printing system is having to manually redo builds when changing parts (like, with printed PO numbers etc). If you had a full build of Model A, then changed it slightly, you would have to remake the build.

I’ve developed an experimental open-source utility that replaces part geometry in existing HP SmartStream SSP builds while preserving placements. It requires a compatible SmartStream installation.

You open the build, identify the parts you want to swap out, choose a new file, and click update! A new build saves, it doesn't overwrite the old one.

https://github.com/NotAnIams/ssp-part-swapper

Let me know any thoughts, completely open source, so please add any improvements you want.

Disclaimers:

This is an independent project, unaffiliated with and not endorsed by HP. The program is completely coded by Codex - but it is opensource, so if you want to make your own, please do.

I have only tested it for a day, so double check all your builds before you print them.