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View Full Version : pic: Vex Swerve

Vince lau
18-03-2007, 14:42
[cdm-description=photo]27801[/cdm-description]
Vince lau
18-03-2007, 14:43
anybody have any suggestions on how I can set it up so that both motors are on the inside instead of on the outside. Right now the way its set up both motors with hit if on the inside.

Thanks
AdamHeard
18-03-2007, 15:08
You would have to widen the wheelbase for that to work.
wilsonmw04
18-03-2007, 15:17
yeah you're going to have to put two smaller gears next to the larger stearing gear, one on each side. let me know how that kit works for ya.
fredliu168
18-03-2007, 16:56
Expand the base and place a communicative gear between the two 60 tooth gears your using right now.
John Gutmann
18-03-2007, 17:23
You can run a chain around all 4 wheels, this way you dont need gears, and the middle is open.

-John
Vince lau
18-03-2007, 22:46
made some changes http://www.ontfluidpowerltd.com/vex_swerve2.jpg

testing video, still need to get another set of the swerve to finish the back (video was taken from my cell, so its a little fuzzy)
http://www.youtube.com/watch?v=n0BqTHysSqA
wilsonmw04
19-03-2007, 09:13
that's nice! what's the speed of those wheels when they are mated to those VEX motors?
artdutra04
19-03-2007, 09:19
that's nice! what's the speed of those wheels when they are mated to those VEX motors?Seeing how the wheels are attached directly to the motors, and assuming that the final speed under load will be 85% of the motor's free speed:

100 rpm x 0.85 x 2.75in diameter x pi / 12in per foot / 60 sec per min = 1.02 feet per second drive speed.

;)
Vince lau
19-03-2007, 10:00
quick question, since I know nothing about programming. Right now the way its set up is that the right joystick on the controller will be used to control the steering. Is there a way where I can get it so that the left joystick will control all 4 wheels?
Jeremiah Johnson
19-03-2007, 10:08
quick question, since I know nothing about programming. Right now the way its set up is that the right joystick on the controller will be used to control the steering. Is there a way where I can get it so that the left joystick will control all 4 wheels?

Someone correct me if I'm wrong, but to do this without programming you would have to use two y-pwmconnectors and then hook them up in the 3 and 4 pwm slots on the microcontroller.

Jeremiah