pic: Ahhhh, that's better.

[MrRiedemanJACC]

Is there a shifter in there also? Or are you a single speed drivetrain?

[Aren Siekmeier]

Originally Posted by MrRiedemanJACC

Is there a shifter in there also? Or are you a single speed drivetrain?

At 17.3 fps I hope so...

[Akash Rastogi]

Originally Posted by MrRiedemanJACC

Is there a shifter in there also? Or are you a single speed drivetrain?

It is single speed.

http://www.youtube.com/watch?v=OVkDHDV4Tvo

[Ryan Dognaux]

This picture you posted earlier was still one of my favorites from 2013. The drive looks great, any chance we could see some CAD for it at some point? I will definitely be checking out this one at IRI.

I noticed from the first rev and the video that Akash linked to that you had problems mounting the single speed gearboxes. Any more information on what the problem was?

[DampRobot]

Originally Posted by IndySam

17.3 free speed. It was as fast as we dared go on a 90lb robot without fearing constantly tripping breakers.

All shafts are on bearings and no comparison testing was done. There is reduction built into the gear arrangement and it's driven by a custom single reduction gearbox. The reason we ran 4" wheels for the first time was to reduce the reduction needed.

This would seem to imply single speed. I would be very interested to see a shifter for FRC that only needed a single reduction.

[jman4747]

This is an awesome drive train I love the breaking of convention and getting away from the same way of doing things. So Ahhhh indeed this is a marvelous breath of fresh air.

[topgun]

How did you attach the wheels to the drivetrain? A picture would help.

[EricH]

Originally Posted by topgun

How did you attach the wheels to the drivetrain? A picture would help.

Offhand, I'd go with the wheels sliding onto the hex shafts (from left, the 1st, 5th, and 9th gears) and being held on by a washer attached to the end of the shaft by a screw into the end (note the tapped holes in the hex shafts).

[IndySam]

Originally Posted by EricH

Offhand, I'd go with the wheels sliding onto the hex shafts (from left, the 1st, 5th, and 9th gears) and being held on by a washer attached to the end of the shaft by a screw into the end (note the tapped holes in the hex shafts).

Exactly, we have run cantilevered shafts for four years now and this is how we have always attached them and never had a problem. One Button head screw and easy change.

[neshera]

Hmmm: Indiana Team - Lucas Oil Product Placement in photo....

Could Lucas Oil become an IRI sponsor? Could we use their stadium for IRI? or Champs?

[Peyton Yeung]

Originally Posted by neshera

Hmmm: Indiana Team - Lucas Oil Product Placement in photo....

Could Lucas Oil become an IRI sponsor? Could we use their stadium for IRI? or Champs?

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