ive been meaning to build one for some time now but never got to it....built a tint one but im goin for a big, 5 foot tall one
top roller: nylon from old bed frame wheels
bottom roller: silicon tape on a motors drive roll
motor: blower from an over the stove microwave....knew that would be useful some day lol
this photo link will update when i add pics so ill only post it once
Cool, this looks like a great fun project. I have a big 12vdc motor from a battery powered lawnmower around (yes there is/was such a thing), its very powerful, but so many RPM.
There is an xheap method. Stick an pice of paper to the shaft and then put somting close to the paper hits it.Then you an microchopne close and meshure the freq. of that sound the freq should be the RPM.
There is an xheap method. Stick an pice of paper to the shaft and then put somting close to the paper hits it.Then you an microchopne close and meshure the freq. of that sound the freq should be the RPM.