About this 3D model

I tried to print this one, but I scaled it to big... and it was warping a lot. Perhaps printing a mini version? UPDATE: Today I printed a smaller one, and it works like a charm! When I was a child I made slingshots out of wood... Living in a city nowadays (Ghent, Belgium) I can relive my youth by printing them. I hope one day my children will use tools like this to explore their creativity :-).