Splat Posted July 10, 2013 Posted July 10, 2013 How about this one, but you would have to add more gears. I doubt Jon's suggestion would be able to handle much torque... I created that gearbox/video, and legomuppet9 is correct, it can't handle much torque the way that it is currently set up. I mention in the video description that "there is a little bit too much play in the sliding mechanism, and this causes the gears to jump and grind when the outputs are under load." This might be able to be fixed with different geometry in the sliding mechanism, but I haven't tried. Also, that video was used to demonstrate one of my gearbox "failures" in my attempt to create a robust 3-speed + 1 PTO gearbox, which you can see in this post. Quote
Someonenamedjon Posted July 11, 2013 Posted July 11, 2013 (edited) I doubt Jon's suggestion would be able to handle much torque... Realism Tried it and the bottom was really weak, causing the gears to skip. edit: i tried it with nxt motors. Edited July 11, 2013 by Someonenamedjon Quote
Someonenamedjon Posted July 12, 2013 Posted July 12, 2013 I have made a modified version of Slpat's gearbox, it is now MUCH strong, although the worm gears rub up against the sides. http://www.youtube.com/watch?feature=player_embedded&v=3C8M3HssoI0 Quote
cgg199 Posted July 12, 2013 Author Posted July 12, 2013 Cheers Jon. I think I have a gearbox now, using Piterx's design with a modified shifting mechanism. Quote
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