frankwas Posted June 2, 2007 Report Share Posted June 2, 2007 Hi all.I am busy working on a project that will turn a disc, just a plain steel disc with a rod attached to it to simulate a steam train's piston action. I am now looking for the right type of motor for this. The disc is approx. 1 kg, possible less. I want to know if a stepper motor might work and will it be strong enough? Or what type of motor would you suggest cause I'm not good with the torque specs and don't know how much it can pull. Thanks! Quote Link to comment Share on other sites More sharing options...
AN920 Posted June 2, 2007 Report Share Posted June 2, 2007 You will have to calculate the moment of inertia. You need the radius of your disc.M.O.I = (mass x radius^2)/2From here you can calculate the required torque requirement.It will help a lot if you know:1) The load torque2) Required rotation speed (rpm)3) Time allowed to get up to speed (sec) Quote Link to comment Share on other sites More sharing options...
frankwas Posted June 2, 2007 Author Report Share Posted June 2, 2007 Thanks very much! One more question, which motors are the best to use in this case? Stepper, geared dc or normal dc motors? Quote Link to comment Share on other sites More sharing options...
AN920 Posted June 2, 2007 Report Share Posted June 2, 2007 DC motors have a lot of pull-out torque. Using a gear box enhances that. Quote Link to comment Share on other sites More sharing options...
frankwas Posted June 2, 2007 Author Report Share Posted June 2, 2007 Thanks very much! I appreciate the reply! Quote Link to comment Share on other sites More sharing options...
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