14-12-2012 15:24

Drivencrazy

Re: pic: Team 1325 Custom Wheels

What's the diameter and weight? They look nice.

14-12-2012 15:24

Akash Rastogi

Re: pic: Team 1325 Custom Wheels

What's the weight on one of those? Looks quite heavy for a custom wheel.

14-12-2012 15:43

Feroz1325

Re: pic: Team 1325 Custom Wheels

Due to the teachers strike we don't have access to our shop or our scale, they are relatively light (we were a bid conservative with the lightening as its our first time), when I get a measurement I will post it.
They are 4 inches in diameter .

14-12-2012 16:04

Richard Wallace

Re: pic: Team 1325 Custom Wheels

They are beautiful.

Akash is correct, though; custom wheels are often designed with less wall thickness to save weight.

I'll guess each of those is about 1.2 lb.

14-12-2012 16:18

Feroz1325

Re: pic: Team 1325 Custom Wheels

In terms of reducing weight for a second iteration, what would you suggest? We were thinking of adding a shape between the sprocket mounting holes to reduce weight, anywhere else?

14-12-2012 17:26

Nuttyman54

Re: pic: Team 1325 Custom Wheels

Quote:

Originally Posted by Feroz1325 In terms of reducing weight for a second iteration, what would you suggest? We were thinking of adding a shape between the sprocket mounting holes to reduce weight, anywhere else?

14-12-2012 19:29

sdcantrell56

Re: pic: Team 1325 Custom Wheels

Also other than just doing it because you can why would you go with these over the new vexpro traction wheels? If it was just an engineering exercise then great!

14-12-2012 20:08

Feroz1325

Re: pic: Team 1325 Custom Wheels

The wheels are part of our offseason prototype drivetrain. We wanted to try somethings we had never done before. As a mentor, I am very proud of the initiative the students took with the design. A student with only one year on the team designed and iterated this wheel through CAD and then worked with a sponsor to have them made.
We will be experimenting with them, as well as some vex stuff to find advantages/disadvantages.

14-12-2012 22:34

Akash Rastogi

Re: pic: Team 1325 Custom Wheels

Quote:

Originally Posted by Feroz1325 The wheels are part of our offseason prototype drivetrain. We wanted to try somethings we had never done before. As a mentor, I am very proud of the initiative the students took with the design. A student with only one year on the team designed and iterated this wheel through CAD and then worked with a sponsor to have them made. We will be experimenting with them, as well as some vex stuff to find advantages/disadvantages.

14-12-2012 23:00

DampRobot

Re: pic: Team 1325 Custom Wheels

Have you thought about how to put tread on the wheel? It looks like riveting is your only option at this point, but you'll have to have some consistent method of drilling their holes. Another mill setup in a vise maybe?

Seconding what others said, these look very heavy. Don't just make the spokes smaller, also conciser pocketing it from the other side. Also, you might want to tap those sprocket mounting holes, so you don't have to it a nut on the other side.