i`ve build a 3d printer which is a Cartesian style machine. i`m driving all my axis via ball screws. I was using NEMA 17 steepers with 2.0Amp rated in all axis and to get a better torque i`ve upgraded them to NEMA 23 1.5Amp motors which has bigger holding torque compare to Nema 17 ones. Anyway I had problems with steppers because of accelerations etc. and i`ve reduced down the acceleration value and other things. But i`ve still problems on Y axis. So i tried to stop my ball screw by my bare hands when they are rotating and it was so easy to stop Y axis. X axis is strong enough but Y is acting as it is driven with very low torque. So do anyone can give an idea what might happened? I hope there is no problem with my board!
i`ll try to put my Nema 17 motor back to compare it but i`m worried a bit.
Also i`m have question in my mind about setting up Acceleration for my ball screws. i`m using 16-10mm ballscrews. which should be quite ok. but i have to reduce my acceleration to 100mm to be able to drive them with 23hs221504s 1.16Nm NEMA 23 motors
if someone can give me sort of explanation about this matter it would be great.
Imported from wikidot