3D printed V8 air powered

[stevehuckss396]

Stock Drive Products has a huge assortment of machined gears in brass, steel, stainless, aluminum, and plastic.  They sell spur gears, worm gears, helical gears, bevel gears and others.  Their prices seem pretty reasonable.  I think they have a $25 minimum order policy, but two gears will probably meet that requirement.

http://www.sdp-si.com/

Their web site is a little tricky to navigate, obviously designed by someone who wanted to make it flashy.  But it's manageable.

Chuck

These were Skew/Bevel gears for the ring and pinion in the little ford rearend. Not something I could get off the shelf.

[Pete49]

While not in the same class or taking away from your great design I saw a very Subaru boxer engine on http://www.thingiverse.com that uses a electric motor to turn it over. While it cheats it was very detailed and is a great way to understand the mechanics of these things. He also had a Toyota motor and I believe a gearbox as well. I am wondering on the feasibility of printing them in PLA and casting the motor block and head in aluminium and making it a runner though my skills are well below what would be needed.
Pete