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Banebot Transmission Issues
Teams,
Just a warning to all, we recently purchased a 256:1 42mm Banebot transmission, and have had many difficulties. It turns out that the quality of these transmissions leaves much to be desired. The output shaft is attached to the last stage of planet gears via a plate with two flats cut in it. The thickness of this steel plate is insufficient and to worsen matters the steel is rather soft. We managed to round the hole in the plate after a mere two minutes of use. If teams wish to use these gearboxes, I strongly recommend modifying the internals to better transfer the torque via the shaft. In fact, The Team 1114 design team and I, strongly discourage teams from using these 42 mm gearboxes in any reduction above the 36:1.
As always, your mileage may vary. Good luck.
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:: Karthik Kanagasabapathy :: "Enthusiasm is one of the most powerful engines of success. When you do a thing, do it with all your might. Put your whole soul into it. Stamp it with your own personality. Be active, be energetic, be enthusiastic and faithful and you will accomplish your object. Nothing great was ever achieved without enthusiasm" -- R.W. Emerson
My TEDx Talk - The Subtle Secrets of Success
Full disclosure: I work for IFI and VEX Robotics, and am the Chairman of the VEX Robotics and VEX IQ Game Design Committees .
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...or it might be good to avoid doing stupid things like smashing a thin metal casing with a steel hammer... - Cory [more] 
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