kgg Report post Posted July 27, 2023 (edited) My calculation for the top speed of the hand-wheel pulley should come in at 156 rpm using a 160 mm hand-wheel pulley size, a 50 mm motor pulley and with the motor speed set to the minimum speed of 500 rpm's. This particular servo motor is a 800 watt brushless 9 coil servo motor with a speed range of 500 to 5000 rpm's. So me being me I had measure the pulleys and hand-wheel to see how far off my calculations were. A) The constants: i) The hand-wheel pulley measured out to be 159mm. ii) The small pulley at the motor measured out at 49mm. iii) No speed reducer is installed. The results with 500 rpm's showing on the controller screen i) with the foot pedal fully depressed the rpm's with my digital tachometer showed 154.5 rpm's ii) with the foot pedal feathered to get the minimum hand-wheel pulley speed the digital tachometer showed a low rpm reading of 61 rpm's If I were to install a speed reducer (100 large pulley with a 50 mm pulley) I figure I could drop the max speed down to 77 rpms and the feathered speed down to around 24 rpms. kgg Edited July 27, 2023 by kgg Quote Share this post Link to post Share on other sites
