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Knightrous
Site Admin
Joined: 15 Jun 2004
Posts: 8511
Location: NSW
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quote:
i ended up shoving a square bit in a drill with the clutch on and shoved that in the end of the shaft and tried to crank the engine over but it seems a drill cant turn the shaft fast enough to make the engine start...
Reason that didn't work is because the clutch on the motor is centrifugal.. You can't spinn the output shaft from the clutch to start the motor. The clutch allows the motor to rotate at idle around 500-600rpm without having a load on it, when you up the throttle, theclutch shoes expand due to centrifugal weight and they start gripping the outter clutch bellhousing, this locks the motor crank and the output shaft together.
This is done so you don't start your wiper sniper up and instantly have the cutter rotating at 500+rpm **DANGEROUS!** This clutch is good for robots because you can have your motor idling, without you nasty spinner weapon rotating pre-battle and it will also stop your weapon from stalling the motor out on big impacts.
For an electric start, most of the US guys usually do is build a external starter adaptor to butt with the flywheel. Have a look at Team Logicom's Maddog, you'll see a hole in the top of the armour and you'll see the motor flywheel, Brian sticks in his dual EV powered starter with adapter rod and starts the motor via the hole directly onto the flywheel. Another robot that uses this method is Village Idiot, check out the videos on the DVD Brett sent out, has one video on there of them starting the Huski's up _________________ https://www.halfdonethings.com/
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Tue Oct 25, 2005 9:01 pm |
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