have found the discussion about the motors in the "motor forum". They do look they are a good next step up from the wiper motors.
The videos of the motor in operation also show the they are very smooth and quiet. I imagine there will be no difference in forward and reverse speeds as well. I will keep trying with the wipers and maybe change to these If I find I need a bit more zip!
I understand everything you have said in regard to the joyrider motion. My system is balanced quite well. I am trying to calculate what diameter timing pulleys I need to give the amount of movement I require. I will be purchasing the Timing Pulleys so I have to know what size to buy. I have similar range of movement to your joyrider, so I would like to keep the number of revolutions end point to end point similar to yours (as your system works so well ). Having the number of revolutions about the same as yours should make my motors work with roughly
the same force available
at the motor pulley output ( ie working in a similar current (Amps) range ). This would also make the time taken to travel end to end point aproximately the same as yours (as your system works so well
) I know this is a rough estimate (as the masses and accelerating are not the same) but I am just looking for a figure to work with. -------- So is 3 revolutions end to end point a good starting point