Hello i really like your show, i have been eager to build a motorized dolly-cart which would be suitable for iPhone or go pro. I have been looking for some motors which would be good for this but i can't decide if steppermotors or servos would be the best option. Here are some description and points points of features i would love to have to it.
description:
-a casing with one motorized wheel.
-attachable two-wheel module
-wheels could be made with 3d printed rims and o-rings as the tire.
-the cart itself would be suitable for tabletops and other fine surfaces.
features:
1. variable speeds
2. time lapse function (moves in steps at specific interval)
3. modular wheel module and camera mount(attachable with neodym magnets)
Feel free to do a lot of changes! i trust your freedom of design! I guess this build would be popular for many peoples.
Have a great time building awesome stuff!
Sivert Hovde