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 Place a corner of it on the end of a table, clamp down the other side, and have a good whack at it with a hammer (hard). If it didn't break, it was polycarbonate. - vivek16 [more] |
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1732's 2 servo shifter
We love the 2-speed AndyMarks but haven't wanted the weight of pneumatics to shift them. Last year we used a single servo to shift each side. This year we're trying to get get more positive shifting by using two servos. The angular "timing" (angle difference) allows either the inside or outside servo to attain high mechanical advantage depending on whether it's in Hi or Lo shift position. Hopefully the servo stems will hold up to the higher resulting shift reaction forces.
Discussion
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04-03-2007 23:27
AdamHeard
Re: pic: 1732's 2 servo shifter
I have to compliment several things here;
1) The linkages to smooth out the mechanical advantage.
2) Customizing a COTS part.
3) Using Vex standoffs, I love those things.
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