Go to Post FIRST is difficult and it is challenging, but you aren’t necessarily required to go off and build an 8 motor drivetrain and 4 motor / 8 pneumatic piston arm mechanism for the heck of it when a 2 motor non-shifting drivetrain and 2 motor arm does just as good a job. - Bill Gold [more]
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Unread 10-02-2007, 11:52
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Re: pic: Team 836 2-speed transmission

Here is our 2-speed transmission, using a pneumatic shifter.
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Unread 10-02-2007, 11:54
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Re: pic: Team 836 2-speed transmission

The transmission looks great. KUDOS
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Unread 10-02-2007, 12:13
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Re: pic: Team 836 2-speed transmission

And it works too. :Q
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Unread 10-02-2007, 19:13
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Re: pic: Team 836 2-speed transmission

Looks nice. I like how you guys are putting the motor inside the plate. Few questions...

1) What are the gear ratios on there?
2) Are you guys using only one small CIM per side?
3) Is there a way to adapt another small CIM or a big CIM into that tranny?
4) How heavy is that?
5) I can't really see the dog gear... but can you shift on fly?

Good luck at the competitions and if you guys are at any event that I am attending, I will make sure to stop by and check you guys out. =)
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Unread 13-02-2007, 19:57
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Re: pic: Team 836 2-speed transmission

Quote:
Originally Posted by Arefin Bari View Post
Looks nice. I like how you guys are putting the motor inside the plate. Few questions...

1) What are the gear ratios on there?
2) Are you guys using only one small CIM per side?
3) Is there a way to adapt another small CIM or a big CIM into that tranny?
4) How heavy is that?
5) I can't really see the dog gear... but can you shift on fly?

Good luck at the competitions and if you guys are at any event that I am attending, I will make sure to stop by and check you guys out. =)
To answer a few of your questions:
1) High gear is 21.96 to 1
Low gear is 65.88 to 1 (both of these are to the wheel)
2) Yes, one 2.5 inch per side
3) Yes, but a small redesign would be required
4) A whole whooping 8.8 pounds per each side with motor and pneumatic shifter
5) Most definitely

We will be competing at the Trenton and Anapolis Regionals
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