Nice update. My math works out as follows: 35 lb-ft is 35 * 12"/ft * 16 oz/lb = 6720 oz-in. You said the ratio is 100:1 so that means to get 6720 you only input 67.2 oz-in. That's about 1/3 of what you suspect your motor can do.
Something is wrong with this picture then. Especially since you were effectively using static torque rather than the much lower torque when the motor is turning at say 400 RPM. With micro-stepping you also get a reduction in full step torque because the max current is now 0.707 x full torque. And without closed loop encoder feedback you can quite easily have to micro-step a number of times before you see physical motion. None of that matters other than that you have shown your mechanics can handle 35 lb-ft which is all in all pretty cool ! John > -----Original Message----- > From: Sam Sokolik [mailto:[email protected]] > Sent: September-12-21 5:50 PM > To: Enhanced Machine Controller (EMC) > Subject: [Emc-users] Minimally printed rotary. Initial torque testing.. > > Small update > > https://youtu.be/eW1GGI55Epc > > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
