I printed my jet pack as well as several other smaller parts. I used ABS for the pack and resin for the smaller parts.
Splitting the pack into small enough parts to fit you printer, printing, then reassembling, filling, sanding and painting is quite a project. I'm not trying to talk you out of it, just realize what you are getting yourself into. Mine took 7 1/2 weeks working every day to complete.
Here is my build thread if you want to learn from my mistakes.
[URL unfurl="true"]https://www.thedentedhelmet.com/forums/threads/3d-printed-rotj-jetpack.35293/[/URL]
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