Quote:
Originally Posted by Joey Milia
Something I'm missing here? 192 runs 22t gt2 pulleys and 15mm wide belt in 2x2in 1/8 wall tubing. Maybe it's the lack of flanges...
|
I was referring to not being able to move up to a 24T pulley, which is the next biggest size vex sells. I was hoping to use their pulleys as we've ordered from them before and they already are set up for hex shafts. The flanges dont help though, removing the flanges would make it really close if not hitting still with a 24T. If you have another supplier for 5mm HTD Hex pulleys I would you be willing to share? I know you said GT2, but were invested in HTD now, so it would be nice to stay standardized. If they aren't hex broached yet I think we could figure that out too.
Also the reason I'm trying to put one run of the belt in the frame is because I'm trying to set up a WCD w/ 15mm belts. I like the WCD design for a number of reasons, but I really want to err on the side of caution and go with 15mm belts. This means I'd need probably two 15mm pulleys inside a gearbox set up for WCD, which means making longer spacers and cantilevering the boxes even farther off the frame. To me it just seemed like a better idea to put one belt run in the frame. I'm just worried about the small engagement on the 18T.
I designed the whole thing up with 3x1.5 and it weighed ~44 lbs all said and done with the 3 CIMS and shifters (minus control system), which is pretty beefy. Moving to 2x1.5 I could save a few pounds, and since that's still structurally sound it seemed like a good way to lighten the base.