SwarfRat Enterprises has a set of free plans for a quick-release dial indicator holder that mounts on the front of a mini-lathe. The holder is made from a 5-inch long piece of .875-inch square aluminum stock. It also uses a quick-release lever from a bicycle seat or wheel that can be purchased inexpensively or salvaged off an old bike. … Read the rest
I am a big fan and admirer of Jan Ridders.Â He is a talented and prolific designer of Stirling, flame-eater and internal combustion engines that are both beautiful to look at and fascinating to watch operate. Jan generously shares his plans for free and you can also frequently find him answering questions on the Yahoo Barstockengine discussion group, a group that I highly recommend if are interesting in building one of Jan’s designs or some other engine that doesn’t require castings.… Read the rest
Would you like free plans for a gas-powered 4-cycle engine that is a proven and easy-to-build design?
Joe Webster designed this engine to be quick, inexpensive and easy to build. It doesn’t have any parts with super-critical dimensions and you don’t need a rotary table or other expensive tooling to construct it.… Read the rest
Professor Nial McCabe teaches Engineering Technology at the County College of Morris in Randolph, NJ. He has a web site with a large collection of engine plans that can be powered by compressed air or steam, plus a few other projects like the pin vise in the picture
The engines are not fancy and I don’t think they are intended to be. … Read the rest