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Unread 05-02-2017, 16:26
Akash Rastogi Akash Rastogi is offline
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pic: Titanium Tomahawks 2170 Teaser

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Unread 05-02-2017, 16:26
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Re: pic: Titanium Tomahawks 2170 Teaser

Is that a 3d printed PVC pipe hex plug? Could I get the model for that?
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Unread 05-02-2017, 16:32
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Re: pic: Titanium Tomahawks 2170 Teaser

Akash, you forgot the box!

Quote:
Originally Posted by ollien View Post
Is that a 3d printed PVC pipe hex plug? Could I get the model for that?
Sure, PM me your email and I'll send it over. It's nothing crazy.
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Unread 05-02-2017, 20:13
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Re: pic: Titanium Tomahawks 2170 Teaser

Looking good! Good luck this year. Only question: Are you worried about being too top heavy when moving throughout the playing the field and suddenly stopping? Just wondering.
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Unread 05-02-2017, 20:23
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Re: pic: Titanium Tomahawks 2170 Teaser

Seem some 2009*shudder* inspiration in this robot.
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Unread 05-02-2017, 20:48
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Re: pic: Titanium Tomahawks 2170 Teaser

I'd work on some weight down low if you can. If you accelerate quickly and then stop suddenly this robot is on its side.
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Unread 05-02-2017, 20:49
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Re: pic: Titanium Tomahawks 2170 Teaser

Quote:
Originally Posted by dodar View Post
Seem some 2009*shudder* inspiration in this robot.
Best I can tell, 2009 is The Game You Should Be Cribbing Notes Off Of.

Personally, I'm curious about how that ramp is getting raised and lowered. I'm liking the concept though--this is borderline cheesecake-able to help a team operate at a higher level.
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Unread 05-02-2017, 21:09
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Re: pic: Titanium Tomahawks 2170 Teaser

This is very similiar to our design. We are using pnuematics to raise our floor(very slowly) and close off the opening for the space that we intake fuel from the floor.
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Unread 05-02-2017, 21:15
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Re: pic: Titanium Tomahawks 2170 Teaser

Quote:
Originally Posted by D_Price View Post
Looking good! Good luck this year. Only question: Are you worried about being too top heavy when moving throughout the playing the field and suddenly stopping? Just wondering.
Our dimensions (before bumpers) are 22.5 x 24.5 x 35.5, and we have discussed the potential for falling over. Luckily, about 80% of the weight here is within 8" of the ground, and that only looks better when we add bumpers and a battery.

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Originally Posted by dodar View Post
Seem some 2009*shudder* inspiration in this robot.
We took a lot of inspiration from 111, 1918, and 2775's 2009 robots here.

Quote:
Originally Posted by Sperkowsky View Post
I'd work on some weight down low if you can. If you accelerate quickly and then stop suddenly this robot is on its side.
Thanks for letting us know, with such certainty, how our robot will perform. I can only assume you're building the exact same robot and have already driven it?

Quote:
Originally Posted by Billfred View Post
Best I can tell, 2009 is The Game You Should Be Cribbing Notes Off Of.

Personally, I'm curious about how that ramp is getting raised and lowered. I'm liking the concept though--this is borderline cheesecake-able to help a team operate at a higher level.
Without going into too much detail about our game analysis, we identified 2009 very early on as our primary year of focus in robot design.

That ramp (elevator carriage) is supported on each corner by a 3D printed bracket bolted to a linear bearing. The bearings are each riding on a stainless steel rod, one in each corner. The current plan is to have a run of #25 chain on either short side of the robot (two total) and bolt the chain to the carriage. Idler sprockets at the top of the robot will be connected by a shaft and we'll tuck a gearbox in the drivebase to power it on one side.
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Unread 05-02-2017, 21:31
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Re: pic: Titanium Tomahawks 2170 Teaser

What're the black rollers made out of? It looks like continuous strand carbon fiber.
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Unread 05-02-2017, 21:33
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Re: pic: Titanium Tomahawks 2170 Teaser

Quote:
Originally Posted by Cothron Theiss View Post
What're the black rollers made out of? It looks like continuous strand carbon fiber.
The rollers are 2" diameter PVC and they're coated in liquid Flex Seal (as seen on TV).

http://www.flexsealproducts.com/product/liquid/
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Unread 05-02-2017, 21:36
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Re: pic: Titanium Tomahawks 2170 Teaser

Does your "elevator ramp" drop down to "ground level"? How are you lifting ground fuel up to the "ramp"
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Unread 05-02-2017, 21:41
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Re: pic: Titanium Tomahawks 2170 Teaser

Quote:
Originally Posted by 1493kd View Post
Does your "elevator ramp" drop down to "ground level"? How are you lifting ground fuel up to the "ramp"
There will be a cut out in the front of the ramp. Another roller will go between the white intake roller and the first black dump roller. The intake roller and this new roller will be wrapped together with polybelt. Behind these rollers we'll have a vertical wall of material that will cause the balls to roll up and then out and down onto the ramp - we're calling this the "Waterfall".

The cut-out piece of ramp will be re-attached with a hinge to act as a "trap-door" that folds out of the way when the elevator is in the floor position, and folds back down when the elevator lifts the ramp to score in the low goal (between the two black rollers) or dump into other robots (above the top black roller).
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Unread 05-02-2017, 21:42
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Re: pic: Titanium Tomahawks 2170 Teaser

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Originally Posted by AcesJames View Post
Thanks for letting us know, with such certainty, how our robot will perform. I can only assume you're building the exact same robot and have already driven it.
I truly apologize for giving my advice. Next time I'll make sure to build an identical robot and do some testing before giving anyone a tip.

Last edited by Sperkowsky : 05-02-2017 at 21:46.
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Unread 05-02-2017, 22:17
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