this post was submitted on 28 Dec 2025
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I had a lot of ASA to spare from a voron 2.4 project. I decided to use some of it printing the prusa rocket engine just for the fun of it, maxing out my printers volume with a height of 310mm. I printed it without any supports, and it does show some obvious issues in areas with large overhangs, but generally the printing quality is pretty good. It took 16h13m to print the entire thing and used a little under 400g of filament, 0.2mm layer height, 10% lightning infill, 2 walls.

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[–] trolololol@lemmy.world 8 points 1 week ago (2 children)

Hey

Why no banana? Banana is the best scale always.

What rocket is this nozzle from? I don't recognise it given the big side nozzles that seem to not be able to independently pivot.

[–] neidu3@sh.itjust.works 5 points 1 week ago

Two bananas for accuracy, so that the viewer knows the size of the first banana

[–] ExcessShiv@lemmy.dbzer0.com -4 points 1 week ago* (last edited 1 week ago) (2 children)

Because I'm tired of that old trope of "BanAnA for ScALe", it is a meme (or whatever you want to call it) that is outdated by at least a decade and has been beaten so much to death it's just not funny anymore, not even ironically.

As for the rocket design, I'm not sure it's even a real rocket design or just some nonsense that just looks kinda cool concocted by a designer that knows nothing about rockets.

[–] trolololol@lemmy.world -1 points 6 days ago

Well yes but I look at your ruler and I couldn't find any clue if that's centimetres or something retarded like inches. And there's other rulers that are even more retarded.

[–] asbestos@lemmy.world 2 points 1 week ago (1 children)

time to upgrade to average penis for scale

[–] nagaram@startrek.website 3 points 1 week ago

I test printer settings by printing ding dings. I will do this.

Let us know how the test fire goes!