Ever since seeing this little 3D-printed catapult, i knew i had to build a better one. so i designed a bigger and more powerfull one in aluminium.
i used Fusion 360's adaptive clearing to remove the bulk of material, then fiunished of the pieces with contouring rounds.
Here, the parts are laid out for the assembly:
The spring assembly was constructed by layers of 1mm plywood, later knitted around, so that they are still able to slide, but not separate
Of course, i had to use a 3D-printed wrench to assemble it:
The arm was riveted to the main axle:
And here it is, in all it's glory besides the smaller 3D- printed catapult, and the printer who printed the small one.