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Unread 14-07-2008, 20:22
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Re: What would you buy if you could?

The things I'd probably buy:

-A better interface for the window motors. Imagine an AM Shifter, but with only one shaft (which interfaces with the output of the motor) and the holes to screw the window motor to one plate (or both, if there are matching units in the KoP). Stick a half-inch shaft in the middle of those plates, and we're in business. That's something I can bolt on just about any part of our robot and not have to worry about those black hubs (or the things stuck in them) wiggling one way or the other.

-Encoder (or pot) hooked to a shaft. It'd weigh more than just incorporating one into a custom design, but I'll suck it up more often than not in the absence of fabrication abilities.

-A mechanical brake. Not for any definite purpose, mind you; I just know I'm not the only person who has yearned for the ability to make something that spins stop spinning.
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  #17   Spotlight this post!  
Unread 14-07-2008, 20:51
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Re: What would you buy if you could?

While the reprap machine is cheaper the Contex can print in color, and has an
integrated bead blasting chamber. Now if money was no object I would love a pair of Craftsman AXS 13 drawer toolboxes complete with custom paint to match
our team's colors, billet aluminum casters, internal tool charging caddy, and cold cathode accent lighting. http://tinyurl.com/6klfyj
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Unread 14-07-2008, 22:02
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Talking Re: What would you buy if you could?

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Dual Drives: Blu-ray Disc Combo (DVD+/-RW + BD-ROM) and 16x DVD+/-RW
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Dell Media Card Reader included in Dell Bluetooth Package

For my birthday, please?
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Unread 14-07-2008, 22:16
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Re: What would you buy if you could?

There's lots of things I want that can already be bought on the internet... I just want them to be cheaper. I love the stuff that Banebots has been coming out with though.


Quote:
Originally Posted by Billfred View Post
-A mechanical brake. Not for any definite purpose, mind you; I just know I'm not the only person who has yearned for the ability to make something that spins stop spinning.
Have you looked into disk brakes for bicycles? I believe 1540 (?) used one on their 2008 robot:

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Unread 14-07-2008, 22:27
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Re: What would you buy if you could?

Quote:
Originally Posted by s_forbes View Post
There's lots of things I want that can already be bought on the internet... I just want them to be cheaper. I love the stuff that Banebots has been coming out with though.




Have you looked into disk brakes for bicycles? I believe 1540 (?) used one on their 2008 robot:

oh. my. GOSH! that is so simple! i love it. How is the tension applied to the brake, piston or another motor?
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Unread 14-07-2008, 22:31
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Re: What would you buy if you could?

Quote:
Originally Posted by wilsonmw04 View Post
oh. my. GOSH! that is so simple! i love it. How is the tension applied to the brake, piston or another motor?
I have usually seen it done with a short-throw pneumatic cylinder...
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  #22   Spotlight this post!  
Unread 14-07-2008, 22:45
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Re: What would you buy if you could?

Quote:
Originally Posted by Billfred View Post
The things I'd probably buy:

-A better interface for the window motors. Imagine an AM Shifter, but with only one shaft (which interfaces with the output of the motor) and the holes to screw the window motor to one plate (or both, if there are matching units in the KoP). Stick a half-inch shaft in the middle of those plates, and we're in business. That's something I can bolt on just about any part of our robot and not have to worry about those black hubs (or the things stuck in them) wiggling one way or the other.
Here's to that!

Quote:
Originally Posted by Billfred View Post
-A mechanical brake. Not for any definite purpose, mind you; I just know I'm not the only person who has yearned for the ability to make something that spins stop spinning.
We too used a piston actuated bicycle disk-brake. Worked great!

Other things I might add:

-Cheap hubs for the Colson Wheels (yeah you can buy these, but they aint cheap)

-A lighter alternative to 80/20 for linear motion (possibly with bearings). It would sure make building elevators a lot easier and lighter

-Cheap carbon fiber tubing.... (aint gonna happen )

-A cheaper alternative to Berco-Flex for treads (possibly one that was an off-the shelf component rather than a customized part). Snow-mobile treads are cool... But not long enough...

-7075 aluminum gears and sprockets. Come-on AM, 6061 just ain't gonna cut it.

-Improved BaneBots. We'll actually get this one! Yay
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Unread 14-07-2008, 22:49
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Re: What would you buy if you could?

Quote:
Originally Posted by Hachiban VIII View Post
-A cheaper alternative to Berco-Flex for treads (possibly one that was an off-the shelf component rather than a customized part). Snow-mobile treads are cool... But not long enough...
I've heard good things from FIRST teams about FN Sheppard
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Unread 15-07-2008, 13:05
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Re: What would you buy if you could?

Those bicycle disk brakes are pretty inexpensive, around $35-$45. for the cheapies:

http://www.rei.com/category/40001152

http://www.blueskycycling.com/cat-brake-disc.htm

Here are some electric brakes: http://207.56.183.208/brakes.aspx
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Unread 15-07-2008, 14:04
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Re: What would you buy if you could?

I'd like to buy the world a home and furnish it with love,
Grow apple trees and honey bees, and snow white turtle doves.
I'd like to teach the world to sing in perfect harmony,
I'd like to buy the world a Coke and keep it company.
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Unread 15-07-2008, 14:31
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Re: What would you buy if you could?

Quote:
Originally Posted by boiler View Post
I'd like to buy the world a home and furnish it with love,
Grow apple trees and honey bees, and snow white turtle doves.
I'd like to teach the world to sing in perfect harmony,
I'd like to buy the world a Coke and keep it company.
Hahaha. You made my day.
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Unread 15-07-2008, 16:25
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Re: What would you buy if you could?

There seems to be some confusion about the intent of this thread. I think it's about "what new product would you buy if someone started making and selling it?". Some people seem to think it's about "what would you buy if you had they money?"
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Unread 15-07-2008, 16:50
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Re: What would you buy if you could?

Titanium C-tubing for robot frames, no one makes that...
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Unread 16-07-2008, 08:11
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Re: What would you buy if you could?

Quote:
Originally Posted by squirrel View Post
There seems to be some confusion about the intent of this thread. I think it's about "what new product would you buy if someone started making and selling it?". Some people seem to think it's about "what would you buy if you had they money?"
Squirrel is right in that my intent was for things currently not made that if they were made for you you would purchase. I do like a couple fo the tangents as we too have been looking for a good mechanical brake. The bike brake idea is one we have tossed around but never tried. Thanks for the posts on that.
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Unread 16-07-2008, 09:09
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Re: What would you buy if you could?

most teams have the money to purchase these, but electric solenoids. Now FIRST just needs to allow them, I don't want to use pneumatics all the time.
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