What if... your Caliburn was a... revolver?

I have no other defense for this thing existing besides pure novelty. Let's make that clear right away. But hey, when you openly encourage people to modify your work...

Ver 1.0.2: Revised drum track
Ver 1.0.1: Drum Tooth dimensions added to Post-Printing Directions
Ver 1.0.0: Initial Release

Creality

CR10S PRO

This was made to work with as much existing Caliburn V1 hardware as possible; despite making a toy that goes 'round and 'round, I'm not out to reinvent the wheel here. It will replace your normal upper and lower, but everything in front and behind should be the same as usual. Same threaded rods, plunger and spring hardware, grip, barrel, what have you.

You will need to use the pump handle from the Raider magwell version (https://www.thingiverse.com/thing:3957863). I needed to move the priming rods to allow the drum to rotate between them without clocking the whole thing sideways.

You will need a peg or tooth of some kind to index the drum. For the moment, a short screw with a head that fits the drum track works well in the prototype, but this means drilling a new hole into your priming bars. By my reckoning, you will need to add the hole 8.075in/205.1mm (center-to-center) forward from the ram base hole... okay, lemme draw that out:

(front) [pump h1] ----- [pump h2] ----- [new drum index hole] ----- 8.075in / 2.05.1mm ----- [ram base h3] (back)

Also, this goes on the top bar only. You can leave the bottom bar alone.