Tippmann TMC Magazine crank

thingiverse

The coupler found here https://www.thingiverse.com/thing:3065303 is top-notch. The issue with couplers lies in their tendency to make the inside magazine difficult to wind. This tool fits snugly between the two magazines, allowing you to wind them in one of two ways. First, simply rotate the wheel. This was my initial approach, and I'm satisfied with it, although the large radius where spinning takes place makes it less than ideal compared to manual winding. Next, I came up with a more ingenious solution by drilling a hole through it and attaching a yoyo string. Wrap the string around 8 times, insert it, and watch as it rapidly winds like a beyblade. Instant winding is now at your fingertips. While it excels at winding the one on the inside, I also use it for both or uncoupled magazines with great results. It relies on two 5mm M3 hex bolts at the bottom for winding, which also hold the two halves together. The two separate parts made printing a breeze.