my new motion control rig

don't know haven't tried it, I don't have steppers on my rig, I have two servos, and one motor, hooked to a motor controller, that controller and the two servos are hooked to a usb servo controller.
 
So what kinds of software are you looking at to control this rig. Is it capable of discreet movements and smooth accelerations? I worked on a motion control job a few weeks ago and the software they were using allowed you to set keypoints and would then calculate a smooth curve to make the motion smooth and natural.
 
my software will do that as well, its actually a cheap $50 serco controlling software, set a start point at 0, and the next point at a speed you want it to reach at that time for the dolly motor, for the sevos you set it for the angle/time and with will determine the acceleration.
 
It would be pretty cool if you could 'record' your camera moves in one shot, then have it 'play back' the motion to shoot a clean plate for the second pass.
 
you could with the proper programs, I think Match movier had a cam export, buju might as well, I'm designing a homemade cnc machine now maybe when I get it together I'll look into using cam to control my moco.
 
Have you ever looked into LEGO Mindstorms?

It comes with several stepper motors, a little computer and a idiot safe drag and drop software.

I stumbled upon it when I researched DIY remote heads.

Frank
 
you can add an encoder for cheap (about 50$) to any motor (servo or DC).
you just need to read them to count the distance, calculate velocity etc...
I would go with DC motors so you can cut power on motor but keep reading on encoder. Then you can move the camera by hand and get the system record the moves and reply them again.
you can have some small cpu (gumstick, basic stamp) to get info from encoder at a clocked time and convert it to serial or usb.
Serial is great because you can add a small wireless module at each end and transform wired to wireless with no effort.
the only difficult thing is to build into the system some accurate mechanical references so you can dismount and remount system while keeping the starting position.
 
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