Originally posted by dino.tw
download this tool,you will need it.
http://www.stsrc.com.tw/info/ratio.zip
1)download and unzip it.
2)calculate the teeth of the pulleys and edit the table.
3)than press the [SAVE] button.
Well,you can start to calculate the gear ratio for your 3-belts drive R/C cars.
I have this tool for a while and do like it much ! do you have a palm version so that we may do it at the track?