Hi All. I am doing a project for Remote Control Pan-Tilt for DSLR Camera. Attached is the Module I made using 2 NEMA-17 14:1 Stepper Motor. The unit working Ok so far when I moving both of the Axis using Stepper Driver. But my application is Timelapse and where I am facing a problem. As I said when I am moving the Motor continuously then its working. But when I am doing Timelpase of small Moves then I observed sometime works and sometimes not. After testing few days I think I get the problem which is ... the Motor shaft is free to rotate by hand with a very small degree (I think its 0.5 to 1 degree). That means ... I can move the shaft by small hand force this small degree. Now when I am doing a Timelapse ... say total move of 45 degree for 300 frames i.e. Per frame needs only 0.15 degree move then most of the time Motor missed to do the Move. As this Timelapse Move of 0.15 degree is less than the Shaft Error of 0.5 - 1 degree. If I try the same 45 degree Timelapse for less frame like 10 frames then it works Ok as each frame move is 4.5 degree. But another observation is ... If I do this 45 degree of 300 frame Timelapse with no Camera mounted then it works. I am not sure of its a normal behavior of Stepper Motor that it have a free shaft Move of this 0.5 - 1 Degree? Or for this small moves the Motor not able to give enough torque when Camera is mounted? As I directly connected the Pan and Tilt with Shaft so 1 Shaft Revolution gives my Camera 360 Degree Move. So I need the Shaft very tight and no moves happens normally. Can anyone advice any solution? Do I need to change the Stepper Motor with high Gear ratio like 27:1 or even 100:1? Thanks. Looking forward your reply. Regards.