<html><head></head><body><div style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:16px;"><div>I have a project where I need to move a stepper motor, it needs to push a 1/4 inch rope through a roller.</div><div><br></div><div>I have one of these working: https://www.adafruit.com/product/324 but it seems to lack pushing power. If I help pull the the rope it works well. I think I need a more powerful stepper.</div><div><br></div><div>I also have one of these: <a href="https://smile.amazon.com/gp/product/B00PNEQI7W/ref=oh_aui_search_detailpage?ie=UTF8&psc=1">https://smile.amazon.com/gp/product/B00PNEQI7W/ref=oh_aui_search_detailpage?ie=UTF8&psc=1</a> (17HS16-2004S1)<br></div><div><br></div><div>I am using this to drive them: <a href="https://smile.amazon.com/gp/product/B014KMHSW6/ref=ask_ql_qh_dp_hza">https://smile.amazon.com/gp/product/B014KMHSW6/ref=ask_ql_qh_dp_hza</a></div><div><br></div><div>I think it should work. My power supply says it is DC output 12 V, 3.33A Max. (I think it came from an old laptop or printer)<br></div><div><br></div><div>With no pressure on the Adifruit stepper it seems to work. When I try the other stepper, it gets lots of pauses, the power light on the L298N flashes on sometimes and the stepper hums like it is trying to move.</div><div><br></div><div>I'm using an Arduino Uno to control everything.</div><div><br></div><div>When the larger stepper is trying to run I measure around 3 V at the power terminals on the L298N, around 0.01 mA (using breadboard jumper wires to connect power supply to controller).</div><div><br></div><div>Do I need a different motor controller? Should I find a different stepper? Should I buy a bench power supply?<br></div><div><br></div><div>Thanks</div><div><br></div><div>Craig<br></div></div></body></html>