Ball wheel sketch 1

thingiverse

I wanted an easier way to move my drumkit around through my room. This is one idea i'm working on. Since i wanted to ask some people for feedback, i decided to share my current progress here. As a matter of fact, any feedback is welcome, so if you have any ideas, please chip in!! The obvious choice would be to go with "shopping cart wheels", but the problem is, they need to align first before the start rolling easily. So the first 10 cm is very tough, also they don't play nice with carpet. Using balls to roll around a wooden board has the advantage that it minimizes friction in any direction. The disadvantage is that the ball would move around under the board. (Still this works fairly well with a bunch of tennis balls, if you get the balls that pop out under it, and put them back on the other side of the board). This ring is to prevent that. Note that the little red rolls are not supposed to touch the ball at all times. The ball rolls around "freely" until it encounters one roll on the opposite side of the board's direction. The roll will go "between" the ball and the board, lifting the board slightly. This will (hopefully) allow the ball to roll freely from the board (but not freely from the roll). If you change direction, after a few cm another roll will take over. This is not my best scripting. I had to become a little pragmatic here and there to remain printability. The thin "walls" blocking the pivot openings are intended as supports for printing, and to be cut away after. It's designed to print upsided down. Also, i don't intend to 3d print the rolls or the ball. (-: