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View Full Version : pic: Tri-Wheel Design

ArtemusMaximus
10-01-2016, 17:44
[cdm-description=photo]42624[/cdm-description]
dieDoktor
10-01-2016, 17:45
"short lived" why? Any noticeable problems?

Also, I cant see it in the picture, how do you transfer power from motors to the chains inside the triangle?
Doug Frisk
10-01-2016, 17:56
Did one of your mentors love the movie Damnation Alley as a kid?
Mike Marandola
10-01-2016, 18:00
Reminiscent of 340's 2004 drivetrain (https://www.youtube.com/watch?v=I_7EMMgYVjs)
ArtemusMaximus
14-01-2016, 15:43
Reminiscent of 340's 2004 drivetrain (https://www.youtube.com/watch?v=I_7EMMgYVjs)

Almost, however design on the video does not drive the tri-wheel itself.
nxtmonkeys
14-01-2016, 15:53
And how does one make a bumper for this?

Figure that out, and the world is yours.
ehochstein
14-01-2016, 16:04
And how does one make a bumper for this?

Figure that out, and the world is yours.

No bumpers for FTC!

Unless you're Jordan from 3550 of course.
nxtmonkeys
14-01-2016, 16:05
No bumpers for FTC!

Unless you're Jordan from 3550 of course.

Lucky. Hmm... I bet I COULD fit a bumper on that...
ArtemusMaximus
14-01-2016, 16:17
"short lived" why? Any noticeable problems?



I made it just as a proof of concept without much of teams support. Short-lived because while it was functional, it was seriously under powered. Gearing it down would decrease the speed too much. Without extra motors and a gearbox that would allow to use them to increase torque I couldn't make it work and without team's support I just run out of energy to push it forward.


Also, I cant see it in the picture, how do you transfer power from motors to the chains inside the triangle?
If you look at 2 motors in between the tri-wheels, they drive axle that connected to the sprocket inside the assembly.
Tri-Wheel assembly itself driven by:

Vertical motor
4:1 Worm gerbox
Long Axle
Sprocket
Chain
Sprocket (Outside of frame)
Dead axle hub
Tri-Wheel Plate

Last 3 are connected together.

I hope this helps.

On this photo may be a little easier to see:
http://www.chiefdelphi.com/media/photos/42623
ArtemusMaximus
14-01-2016, 16:46
Did one of your mentors love the movie Damnation Alley as a kid?

I am the mentor and no, never heard of the movie Damnation Alley :)
and now I googled it :S
callmecairo
13-02-2016, 20:34
https://youtu.be/lvpW5RgyZQ
we also had a team member focus on tri wheels without much support. We tested today with success.
ArtemusMaximus
14-02-2016, 11:20
https://youtu.be/lvpW5RgyZQ
we also had a team member focus on tri wheels without much support. We tested today with success.

Tried to see the video, but it does not exist. I very much would like to see your team's implementation.
Roboshant
14-02-2016, 14:28
Video of a team I found on YouTube testing tri-wheel: https://www.youtube.com/watch?v=lvpW5RgyZQw
ArtemusMaximus
14-02-2016, 20:59
Video of a team I found on YouTube testing tri-wheel: https://www.youtube.com/watch?v=lvpW5RgyZQw

aha, video works now.
It doesn't look like you are driving tri-wheel assembly itself. it may help with the last defense (starting at 0:34)