Society of Robots - Robot Forum

Mechanics and Construction => Mechanics and Construction => Topic started by: roboboy12 on January 01, 2009, 10:09:11 AM

Title: wood or metal?
Post by: roboboy12 on January 01, 2009, 10:09:11 AM
when designing my bot i have a dellema metal or wood? ??? ;D
Title: Re: wood or metal?
Post by: bryan922 on January 01, 2009, 12:30:18 PM
That seems like a matter of artistic design and physical requirements. I personally would opt for metal nearly every time, except perhaps if I was creating something like a four legged chair that could walk around - or some other interesting contraption.

However, for prototyping, I might use what was most easily available and shaped, which might be wood.
Title: Re: wood or metal?
Post by: jamort on January 01, 2009, 01:54:07 PM
depends what you have to work with if you have the tools aluminum...
Title: Re: wood or metal?
Post by: roboboy12 on January 02, 2009, 11:18:17 AM
i dont have much its all wood tools
Title: Re: wood or metal?
Post by: airman00 on January 02, 2009, 12:21:25 PM
i dont have much its all wood tools

then I guess you don't really have a choice among materials
Title: Re: wood or metal?
Post by: Canabots on January 02, 2009, 01:14:08 PM
Personally, I would choose wood.

The Advantages:
1. Easy to shape
2. Easily available
3. Low cost
4. Durable
5. Non-Conductive (no worry for short circuits)

The Disadvantages:
1. Can be really heavy or too dense (depends on type of wood)
2. Cannot bend easily
3. It will absorb water and start to disintegrate
4. Can crack/split easily

(A bit unrelated) I've heard many great things about sintra. A plastic which bends easily at low temperatures, can be cut easily, and does not require specific tools for shaping. It works well with glue and apparently, you can also get sintra at sign shops as scraps for low prices. This material might also be suitable for your robot (I've never used it before, but I plan on it in the future).

Good luck with your robot!
Title: Re: wood or metal?
Post by: roboboy12 on January 02, 2009, 02:37:16 PM
 8)i think ill go with wood, i googled sintra but i didnt like the material. Thanks for the help everybody! :) ;D
Title: Re: wood or metal?
Post by: airman00 on January 02, 2009, 02:47:11 PM
but i didnt like the material.
why?
Title: Re: wood or metal?
Post by: roboboy12 on January 02, 2009, 02:54:51 PM
it had a low exterior streanth value and my bot is an atv securaty bot
Quote
with cameras
Title: Re: wood or metal?
Post by: airman00 on January 02, 2009, 03:09:42 PM
it had a low exterior streanth value and my bot is an atv securaty bot
I disagree
Read this : http://www.solarbotics.net/starting/200207_sintra/sintra_manual.pdf
Look at page 34 .

You obviously did not do much research....

Title: Re: wood or metal?
Post by: bryan922 on January 03, 2009, 12:52:02 AM
Thin aluminum plate (thicker aluminum sheets) can be cut with a jig saw and refined with a Dremel tool. Such aluminum is not that expensive and easily available at most metal suppliers.
Title: Re: wood or metal?
Post by: dellagd on March 04, 2009, 06:35:22 AM
meatl in small robotics is just too heavy for what it needs to do.
Defiantly go with wood. 
Title: Re: wood or metal?
Post by: airman00 on March 08, 2009, 06:55:12 AM
meatl in small robotics is just too heavy for what it needs to do.
Defiantly go with wood. 
not quite...

the aluminum sheets that are used in robots are LIGHTER than the wood equivalent ( strengthwise)
Title: Re: wood or metal?
Post by: dellagd on March 08, 2009, 07:27:36 AM
Quote
meatl in small robotics is just too heavy for what it needs to do.
Defiantly go with wood.
not quite...

the aluminum sheets that are used in robots are LIGHTER than the wood equivalent ( strengthwise)
true...
aluminum is stronger but it is also more expensive.
Title: Re: wood or metal?
Post by: offy on March 08, 2009, 09:59:24 AM
I would go with plastic, and for mounting stuff I will use metal.
Title: Re: wood or metal?
Post by: jamort on March 08, 2009, 11:43:51 AM
It epends on person/ tolls you have... plastic is an ok material but metal is better to me because if I have the right tools I'd rather work with metal