If you have a Lee Load Master and you have loaded more than 200 rounds, you'll probably hate that wooden ball as much as I do due to low grip and uncomfortable pressure in the middle of your palm, ending up with blisters and rejection at the idea to load more.
If your reloading session require you to pull that lever 1000 or plus times, I'm literally saving your hand and your mood! :-)

For this reason I've designed this Roller Handle that will replace that horrible and much hated wooden ball that is installed by pressure and can be removed simply by rotating while pulling.
The handle is designed with the same conical shape that will fit perfectly your lever and that's already enough to push that in by pressure as the original wooden ball and never came loose, but I've created 4 holes anyways that can be used to push a threaded heat insert after drilling the proper dimension (I've used some M3 insert) to somehow lock that in place even more.
The rotating part of the handle is created by pushing into the outer sleeve (file: LLM_RH - Roller_Main.stl) three 608RS ball bearing like the one used for roller skates, separated by 2 spacers (file LLM_RH - Bearing_Spacer.stl), ending up with one cap per side (file: LLM_RH - Roller_Cap.stl).
If you look into the photo you'll see the order of the pieces and how it looks inserted.
Please consider that the outer sleeve is designed very precise to fit the bearing and the spacers simply by pressure, if your printer is not precise to the tenth of a millimeter you'll probably have to send the internal part of the sleeve or hammer them through very hard or print that scaling that up a little (you've got some length tolerance).
The main body (file: LLM Roller Handle V2.stl) is the more stressed parts, I suggest you to print that with very high wall count (I've used 8) and high infill (i've used cubic at 50%) in order to be rigid and strong enough for when a case got stuck in your dies.
To connect the rolling part to the main body you can use a 16cm M8 threaded rod that can be screwed inside of the holes of the main body to make the plastic adapt to the thread, and locking this in place with some self-locking nuts.
The rolling part is 2.5mm shorter than his slot, that's to insert a 1mm thick washer in between in order to remove any plastic-on-plastic friction that can cause premature wear and tear.

If you do everything correctly your handle should spin for 2/5 second after a finger push and you'll be able to reload thousands of rounds without sacrificing your hand skin.
For a premium experience i bought also some motorcycle handle sleave to be cut and put it up to the rolling part to soften that up a little, i've also considered some tennis tape, if you use something else let me know what you've tried and how it goes.

In case of doubt regarding the assembly, questions, change request or suggestion on how to improve my work, just leave a comment and I'll be happy to reply asap.

*In case the project is useful to you and you like it, consider thanking me with a coffee or a beer using my donation link or the "Tip designer" button*
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Category: DIY

Printables Tags: handle; shooting; idpa; lee; loadmaster; reloading; thingiverse; 9mm