That makes sense. It trades one problem for another. Btw, great explanation. Well written, and easy for everyone to understand. Thanks.by Bryguy - Mechanics
You are right. There probably is enough flex in a "flex shaft" to introduce inaccuracy. ( Maybe the name "flex shaft" could have been my first clue!) Could it be more "spring" than just plain "give"? What I mean is that whatever flex is present in the shaft is simply some lag that catches up. Thanks for your input.by Bryguy - Mechanics
I haven't tried any crazy custom ideas yet, so.... I thought I was pretty clever thinking of using a flex shaft from a drill or Dremel to drive a Bowden + Direct Drive system, then I found a post discussing it. The benefit is the mass of the motor driving the filament is located on the printer frame, but the direct drive has better filament control. Couldn't this also be applied to the traveby Bryguy - Mechanics
j0achim! Great work! I think it could have some promising potential. What changes have you made that have given noticeable improvements? I would think tension guides and more wraps would make it better, but eventually you have to worry about friction & wear against itself. I was thinking that with increased windings, some linear slide guides could help avoid some of the friction/wear agby Bryguy - Mechanics
Dust Thanks for your reply. I was thinking that the load might be a little too much for the 8 bit board, if it was only hooking up extra stepper motors. I thought that the solution would be a way to split/duplicate the signal from the board to (2) separate stepper drivers W/OUT HALVING THE SPEED, so that the board doesn't see extra load. As far as the board goes, it is sending out the same siby Bryguy - RAMPS Electronics
I don't have a ton of experience with custom electronics. I was wondering if it were possible to custom build a RAMPS with more stepper drivers than what is normally there? This could allow (2) motors per Z axis, (2) motors per X axis, (1) motor per Y axis, and (3), (4), or (5) motors for a multicolor setup. I have seen newer, more expensive and complex single board alternatives. Keepingby Bryguy - RAMPS Electronics