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Unread 26-06-2005, 17:27
Matt Krass's Avatar
Matt Krass Matt Krass is offline
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pic: Omniwheel version 3.0 Exploded View

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Matt Krass
If I suggest something to try and fix a problem, and you don't understand what I mean, please PM me!

I'm a FIRST relic of sorts, I remember when we used PBASIC and we got CH Flightsticks in the KoP. In my day we didn't have motorized carts, we pushed our robots uphill, both ways! (Houston 2003!)
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Unread 26-06-2005, 17:30
sanddrag sanddrag is offline
On to my 16th year in FRC
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Re: pic: Omniwheel version 3.0 Exploded View

Looks really good but the tiny grooves need a little bit of work still. I assume they will be cut with a ball end endmill since you are making them half round. However, there is no way it is going to come to a flat stop at the end of the groove because the cutter is round. That needs to be rounded just like the depth of the groove itself.

Also, is anyone other than me concerned with how thin the metal is going to be near the grooves? You might want to start with 3/16" plate and surface it down to 1/8" in the less critical areas.

Other than that, it looks great!
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Last edited by sanddrag : 26-06-2005 at 21:34.
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Unread 26-06-2005, 18:53
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Re: pic: Omniwheel version 3.0 Exploded View

love the omni looks great. as stated above make the wallls 3/8" thick each.
i have uploaded a picture of mine in '04 and before it was painted so you can see it easier.

cant wait to see it on a robot next year? also how big would it be?
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Unread 26-06-2005, 20:30
sanddrag sanddrag is offline
On to my 16th year in FRC
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Re: pic: Omniwheel version 3.0 Exploded View

What is that one made of? Acrylic or Lexan?
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Unread 26-06-2005, 20:50
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Re: pic: Omniwheel version 3.0 Exploded View

it's two 3/8" lexan pieces.
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Unread 26-06-2005, 21:03
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Re: pic: Omniwheel version 3.0 Exploded View

Quote:
Originally Posted by Alex Cormier
cant wait to see it on a robot next year? also how big would it be?
If I am not making mistake, Matt made it 10" diameter.

Good job matt.
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Unread 26-06-2005, 21:16
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Re: pic: Omniwheel version 3.0 Exploded View

Correct, 10"
I'll be trying out 3/16 plates surfaced down to 1/8" on the actual spokes to see how it looks, if it doesn't appear to be any help I won't bother, though I think it will, that, along with a nicer rounding for the outer edges would make version 3.1 I suppose. Any other suggestions guys? I appreciate this.
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If I suggest something to try and fix a problem, and you don't understand what I mean, please PM me!

I'm a FIRST relic of sorts, I remember when we used PBASIC and we got CH Flightsticks in the KoP. In my day we didn't have motorized carts, we pushed our robots uphill, both ways! (Houston 2003!)
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Unread 28-06-2005, 12:46
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Re: pic: Omniwheel version 3.0 Exploded View

On the 2005 bot we used 1/4" aluminum plate and got along fine with that, however we had two omni wheels side by side.

If if remember correctly we also used 1/4" steel roller axles, with plastic bushings inside the gum rubber rollers.
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Last edited by team222badbrad : 28-06-2005 at 12:50.
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