hey guys..i have a jameco 237711 unipolar stepper motor with
[*]4 phases [*]9 VDC [*]7.5° step angle [*]Phase resistance: 20 Ohms [*]Current: 450 mA [*]Phase inductance: 18.5 mH [*]Detent torque: 130 g-cm [*]Holding torque: 800 g-cm
but im having a problem...it seems like it doesnt have enough power to move the robot....if i hold the robot up, it seems like crazy, but just·a little force of my hand will cause it to stop....is there any way to increase the torque? is 800g-cm not alot? is there a possibility that it is hooked up wrong eventhough its moving forward?