Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:4896266.
Here's my attempt at Darth Vader's Lightsaber. I scaled them up to 165%. You might want to sand the connection points so they fit if your tolerances aren't perfect. The emitter detail also doubles as a kyber crystal chamber, so you can put a Kyber Crystal in there if you want. Here’s the assembly and painting video for this https://www.youtube.com/watch?v=TTMgFyzCE7c.
Be sure to check out my other designed and post a make.