10-01-2016 17:45

dieDoktor

Re: pic: Tri-Wheel Design

"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?

10-01-2016 17:56

Doug Frisk

Re: pic: Tri-Wheel Design

Did one of your mentors love the movie Damnation Alley as a kid?

10-01-2016 18:00

Mike Marandola

Re: pic: Tri-Wheel Design

Reminiscent of 340's 2004 drivetrain

14-01-2016 15:43

ArtemusMaximus

Re: pic: Tri-Wheel Design

Almost, however design on the video does not drive the tri-wheel itself.

14-01-2016 15:53

nxtmonkeys

Re: pic: Tri-Wheel Design

And how does one make a bumper for this?

Figure that out, and the world is yours.

14-01-2016 16:04

ehochstein

Re: pic: Tri-Wheel Design

No bumpers for FTC!

Unless you're Jordan from 3550 of course.

14-01-2016 16:05

nxtmonkeys

Re: pic: Tri-Wheel Design

Lucky. Hmm... I bet I COULD fit a bumper on that...

14-01-2016 16:17

ArtemusMaximus

Re: pic: Tri-Wheel Design

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.

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

14-01-2016 16:46

ArtemusMaximus

Re: pic: Tri-Wheel Design

I am the mentor and no, never heard of the movie Damnation Alley
and now I googled it :S

13-02-2016 20:34

callmecairo

Re: pic: Tri-Wheel Design

https://youtu.be/lvpW5RgyZQ
we also had a team member focus on tri wheels without much support. We tested today with success.

14-02-2016 11:20

ArtemusMaximus

Re: pic: Tri-Wheel Design

Tried to see the video, but it does not exist. I very much would like to see your team's implementation.

14-02-2016 14:28

Roboshant

Re: pic: Tri-Wheel Design

Video of a team I found on YouTube testing tri-wheel: https://www.youtube.com/watch?v=lvpW5RgyZQw

14-02-2016 20:59

ArtemusMaximus

Re: pic: Tri-Wheel Design

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)