I couldn't find a Kylo Ren lightsaber anywhere, so I made this to go with Julia's 10:1 brick minifigure. However, I sized down the Kylo Ren parts to 70% as that is the size I personally went with from the 10:1 model. So, this is more like a 7:1 model. I haven't messed with sizing it up to fit the full size, but in theory, it should work. I also made a Kylo Ren Helmet for this project.

I included the lightsaber handle and saber parts as well.

Here is the link to Julia's original brick figure, which this works with.

https://www.printables.com/model/411733-brick-megafigure-101-scale

Everything is printed in PLA at default settings. For the handle, I used organic tree supports and it came out great. For the sabers, I just used a brim.