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Knightrous
Site Admin
Joined: 15 Jun 2004
Posts: 8511
Location: NSW
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CAD Pile of Parts is forming.
Going to try an experiment by having a right angle drive from the weapon motor (2.5:1) which will then run a lay shaft across the robot, where dual belt drives (1.2:1) will then connect up to the weapon. With dual belt drives, I should greatly reduce the chances of breaking a belt during an impact or a hit from another robot. Only needing a 1.2:1 ratio means I can use relatively small pulleys, giving an even lower attack area for any other spinners (I plan to have the pulleys hidden inside the external surface of the robot akin to the Touro robots). The layshaft setup also allows me to shift some extra weight towards the rear of the robot to help keep a good amount of pressure on the rear wedge (so it will go under opponents, not just bounce up and over them!)
1:1 Belt drive from the Dewalts to 4"x2" colson wheels that I ran on Farmboy, this setup like the weapon allows the motors to sit back further and put more weight over the rear. Close enough to the axis of the beater to minimise gyro dancing, but far enough away to keep them out of the strike zone in a weapon to weapon hit. Might consider other belt ratios to tune the Dewalt speed to perfection.
Weapon mounts will be 20mm thick Aluminium with 52X20X19.25 taper roller bearings, which are good for 12000RPM and should handle a shet load of force. Hopefully with some shimming to perfection, they will bring a low friction setup with great reliability.
Getting more and more Reboot like every time I shuffle parts around, maybe it will end up as successful _________________ https://www.halfdonethings.com/
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Mon Aug 26, 2013 11:24 pm |
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