For the battle tops themselves, check out the MEGA collection on my profile!

I suggest printing all launcher parts in PLA with 4 walls and 20-30% rectilinear infill. The Ripcord should be printed with PETG or a hard TPU for best results.

I HIGHLY suggest applying a small amount of a light oil to the hole where the spinner goes in. This reduces friction and lets you pull the cord extremely fast without your spinner top melting from friction. THIS APPLIES TO ALL LAUNCHERS! If you can, oil the non-ribbed side of the launcher too
 

No AMS/MMU Required!
 

Parts should be assembled with glue! 

Ripcord channel curved and specifically designed to prevent the cord from breaking or jamming. 

I suggest printing the colors in the same pallete as mine, but changing the red piece for any other colour of your choosing!