Straight Arrow

For a simulation of the gear movement click here.

Dos Pyros

Rosinante

Thumper

For an explanation of how Ringbom engines work click here.

Double Acting Ringbom

Click on the image at left for photos of the finished engine. 

For construction photos and a computer animation click here.

 QuadRingbom

N.A.M.E.S.  2001

6.3 Liter Datsun

Reindeer!

Traditional

Modern