21-01-2010 19:17

yoshibrock

Re: pic: Team 1708 Idea #1 rev. A

Excellent! I was hoping the revised version of this would be up. First of all, very impressive visually; I love the color scheme. I also like how you tackled the problem of going over the bump. It looks like you won't have any problems with that.
Unfortunately, it looks like your center of gravity will have moved up quite a bit, which may pose a problem with tipping, though that's just from looking at it, so don't take it as a fact.
And one more thing that Im just echoing from the first revision. You want to be careful with that suspension to make sure that if one wheel's springs are compressed and the others are in the normal position, it doesn't throw your chain off.
Other than that, it's an impressive design that looks quite promising. Good luck!

21-01-2010 19:20

gvarndell

Re: pic: Team 1708 Idea #1 rev. A

Just curious -- not commentary and not criticism.
What is the purpose/adavantage of having 6 wheels?

21-01-2010 19:24

ttldomination

Re: pic: Team 1708 Idea #1 rev. A

Very Nice design. . With the background, it's even steallar.

I have a question though, what kinda of shox/springs are those? and what kind of "give" do they provide?

21-01-2010 19:31

1708xMr.Roboto

Re: pic: Team 1708 Idea #1 rev. A

Quote:

Originally Posted by ttldomination Very Nice design. . With the background, it's even steallar. I have a question though, what kinda of shox/springs are those? and what kind of "give" do they provide?

21-01-2010 19:33

1708xMr.Roboto

Re: pic: Team 1708 Idea #1 rev. A

Quote:

Originally Posted by yoshibrock Excellent! I was hoping the revised version of this would be up. First of all, very impressive visually; I love the color scheme. I also like how you tackled the problem of going over the bump. It looks like you won't have any problems with that. Unfortunately, it looks like your center of gravity will have moved up quite a bit, which may pose a problem with tipping, though that's just from looking at it, so don't take it as a fact. And one more thing that Im just echoing from the first revision. You want to be careful with that suspension to make sure that if one wheel's springs are compressed and the others are in the normal position, it doesn't throw your chain off. Other than that, it's an impressive design that looks quite promising. Good luck!

21-01-2010 19:34

Chris is me

Re: pic: Team 1708 Idea #1 rev. A

Looking good. My only criticism is that putting shocks on your wheels can mess up the tension of your chain. As the wheels go up and down, the distance from the drive will change, causing chain skipping and throwing potentially.

21-01-2010 19:39

1708xMr.Roboto

Re: pic: Team 1708 Idea #1 rev. A

Quote:

Originally Posted by gvarndell Just curious -- not commentary and not criticism. What is the purpose/adavantage of having 6 wheels?

21-01-2010 19:40

1708xMr.Roboto

Re: pic: Team 1708 Idea #1 rev. A

Quote:

Originally Posted by Chris is me Looking good. My only criticism is that putting shocks on your wheels can mess up the tension of your chain. As the wheels go up and down, the distance from the drive will change, causing chain skipping and throwing potentially.

21-01-2010 19:44

GaryVoshol

Re: pic: Team 1708 Idea #1 rev. A

From the perspective it's hard to tell. If those are 8" wheels, it looks like the top of the angle would be somewhere near 13" off the floor, and thus could be where the center of the bumpers are. This provides a solid attachment point for the bumpers front and rear, but what about the sides? I assume the lowest rail is less than 10" off the ground so the bumpers could not attach there; can they attach to the upper rail on the sides?

21-01-2010 19:48

GUI

Re: pic: Team 1708 Idea #1 rev. A

Have you considered how having all six wheels flat on the ground will affect turning ability? 6wd is very maneuverable when the center wheel is slightly lower than the others (allowing one end to be slightly off the floor when turning), but with a suspenstion I don't see how you could get that affect. You may have already considered this, just trying to help you make sure there aren't any surprises when it gets built d:

21-01-2010 19:50

1708xMr.Roboto

Re: pic: Team 1708 Idea #1 rev. A

It's kind of funny you brought you up, we just talked about that at the meeting we are at right now. The center bar, of the robot will be moved up to provide a full bumper mouting area around the whole robot.

21-01-2010 20:06

Chris is me

Re: pic: Team 1708 Idea #1 rev. A

Quote:

Originally Posted by 1708xMr.Roboto Do you think a longer chain with a tight tensioner is going to work? We are hoping for it too.

22-01-2010 18:53

Navid Shafa

Re: pic: Team 1708 Idea #1 rev. A

A) What size aluminum tubing is that?
B) What's your total weight?

22-01-2010 22:24

1708xMr.Roboto

Re: pic: Team 1708 Idea #1 rev. A

Quote:

Originally Posted by Navid Shafa A) What size aluminum tubing is that? B) What's your total weight?

24-01-2010 02:09

TheOtherGuy

Re: pic: Team 1708 Idea #1 rev. A

Quote:

Originally Posted by GUI Have you considered how having all six wheels flat on the ground will affect turning ability? 6wd is very maneuverable when the center wheel is slightly lower than the others (allowing one end to be slightly off the floor when turning), but with a suspenstion I don't see how you could get that affect. You may have already considered this, just trying to help you make sure there aren't any surprises when it gets built d:

26-01-2010 13:17

RyanCahoon

Re: pic: Team 1708 Idea #1 rev. A

Quote:

Originally Posted by TheOtherGuy I'm also curious about this; seems that when you include a suspension system on a 6wd, you're losing a major benefit of that wheel configuration. Are you planning on using any omniwheels on the corners?