small gear box

update 9/14/18 have completely reworked this gear box with higher ratio gears and better mesh between gears more reliable working
i plan to make a adapter to turn this box into a self centering steering box
went to walmart to find nails they did not have anything that would work
the mystery of the nails is solved they are 10 gauge roofing nails i have also found in my hanger collection hangers with a 2mm dia so you should be able to find something around the house to use for shafts i refuse to have to purchase anything for any reason





this is only a 2 stage gear box it is going to be easily modified for 4 stage for version 2

for the shafts i used a nail i cant remember what these nails was for but they are exactly 3mm i think they are roofing nails

print the gears on a raft this will keep the teeth clean and sharp on the bottom better to sand the raft than to clean the teeth

no supports needed on the other parts

for the longest time i have tried downloading ge