I would suggest printing the Handle bulb with as little infill as possible, to reduce the weight offset on the side when using solo. Heavy infill on the other parts can make these parts feel much nicer in the hand, and be more durable in use. This grinder requires no supports as all supports are integral to the parts, with a 0.25mm layer gap vertical between supported surfaces. The supports are separate meshes so you can split the mesh to sub parts and remove the integral supports if you wish. M3 x 16mm SHCS - 16x M3 Nut - 5x 5.95mm BBs - 9x