..Or u could try to modify your cheap odometer by (if it is using a = sensor) to=20 registrer more pules, that is fake that the table is spinning faster = than it really is. if it uses a hall-effect sensor so glue a bunch of magnets to the = table.. lets say u glue 10 magnets to speed it up 10 times it would make it easy to read = the result and just divide by ten. > If it doesn't unbalance the turntable, glue a magnet to the edge of = the > turntable and place a reed switch or a hall-effect sensor near the = edge and > count the pulses over time. >=20 > I am in a pinch. I need to find a complete RPM set-up for an > experiment. I have a bodine gear motor that drives a round table via = a > v-belt.I needed to know how fast it is rotating so I bought a bicycle > odometer which I figured would tell me the speed in Miles per hour and = I > could do the conversion to RPM the problem is the table goes to slow = and > this cheap odometer wont register. My question... Does anyone know of = a > supplier of complete RPM systems that would work either on the shaft = or at > some radius on the round disk at 1 RPM. I have found plenty of = parts/ways to > build this but I just dont have the time. That you in advance for your = help. -- http://www.piclist.com hint: PICList Posts must start with ONE topic: "[PIC]:","[SX]:","[AVR]:" =uP ONLY! "[EE]:","[OT]:" =Other "[BUY]:","[AD]:" =Ads