Plan Drawings: Canless Fo Mi Chin II for Non-Shavers
Posted: Thu Jul 14, 2005 5:23 pm
I know this is what many of you have been waiting for. Here it is: a Fo Mi Chin II clone that should appeal to those of female persuausion or guys too young to shave, or maybe somebody who likes the basic design but just doesn't want to mess with trying to weld to a paper-thin steel can. This one is officially named the Reynstodyne FMCII(TM) in honor of its Fo Mi Chin roots.
Now, why would you want to build one of these? I'm so glad you asked. First, the engine is simple and can be built easily from 1 mm or thinner sheet steel. Second, the original Fo Mi Chin II has been declared particularly "sweet running" by no less than Bruno Ogorelec after independent testing [though he was not able to rave about it being particularly easy starting, for some reason]. Then, it is a very light and compact engine. AND, it achieves something few Reynst breathers can boast of: A small cross-sectional footprint. This engine can be put anywhere a Dynajet will fit [though I have not described any way of liquid fueling it]. But, all in all, it's a very small and convenient engine form to play around with.
There should be nothing really tricky about building this mill for anyone who is a competent metalworker and weldor. There are only two cones to form, and both are fairly small. The front "dome" cone can be styled as either the "classic" form with the plug mounted low, or you can use the FWE front dome instead, with the plug right at front dead center. Your choice. You should be able to do the whole works for ten or fifteen US dollars and a few hours of meticulous labor.
This engine should start and run exactly like the original Fo Mi Chin II, and might out-perform it slightly, since the rear cone of the chamber is smoother and better formed. Obviously, you could do a stainless version out of thinner material, if you don't mind forming the tailpipe and intake parts out of flat sheet.
Have fun!
L Cottrill
Now, why would you want to build one of these? I'm so glad you asked. First, the engine is simple and can be built easily from 1 mm or thinner sheet steel. Second, the original Fo Mi Chin II has been declared particularly "sweet running" by no less than Bruno Ogorelec after independent testing [though he was not able to rave about it being particularly easy starting, for some reason]. Then, it is a very light and compact engine. AND, it achieves something few Reynst breathers can boast of: A small cross-sectional footprint. This engine can be put anywhere a Dynajet will fit [though I have not described any way of liquid fueling it]. But, all in all, it's a very small and convenient engine form to play around with.
There should be nothing really tricky about building this mill for anyone who is a competent metalworker and weldor. There are only two cones to form, and both are fairly small. The front "dome" cone can be styled as either the "classic" form with the plug mounted low, or you can use the FWE front dome instead, with the plug right at front dead center. Your choice. You should be able to do the whole works for ten or fifteen US dollars and a few hours of meticulous labor.
This engine should start and run exactly like the original Fo Mi Chin II, and might out-perform it slightly, since the rear cone of the chamber is smoother and better formed. Obviously, you could do a stainless version out of thinner material, if you don't mind forming the tailpipe and intake parts out of flat sheet.
Have fun!
L Cottrill