p407 hexhub

I made this hex adapter,so i can use hex mounted wheels on my hg p407.
Due to my printer being bad at details and small things,i had to make some adjustments to the hole sizes (the 16mm bearing hole is actually drawn at 16,5mm to get it right)so you if your printer is more accurate,you might have to adjust the size of it.
I had to make it 1,5mm shorter than the axle to get the 3mm lock nut to grip firmly enough,just make sure the hole in the wheel is 5mm.