Let's Make Robots!

Chassis support for big bot... help please?

I have just resumed my project and still dont have a valid chassis idea, here are some pictures, please dont hesitate with any and all suggestions.

But some might not be considered because of the fact that I dont have a welder, CNC, lots of scrap metal.
I have not drilled on the caster wheel, because I think I might upgrade after realizing all of the bot's weight will be on the caster.

What kind of wood is this?

I bought $20 worth of wood and shaped it and everything, but I don't know if it is a very reliable wood. I bought it from Home Depot, however it was in the scrap/returned pile, and so didn't have a label, does anybody know what kind of wood this is by looking at it?




There are a bunch of pictures, just use the arrows and magnifying glass. 


Electronics Storage Boxes?

I've gotten to the point where I have a mess up resistors, capacitors, diodes, etc of various values, and I need a storage container for them all. All of the ones I have found are four SMT (surface mount) (very small) components. I prefer something that accepts Paypal, but whatever you find could you show me. Perhaps ones you use?

Custom CNCing for you Robot?

Has anyone ever had there robot CNCed? If so what website did you use? I looked at BigBlueSaw and the stuff there is beyond way too expensive, a 7x5 inch aluminum rectangle (1/8") with a couple of holes drilled in is $81.00, beyond my budget severely. I also emailed many other sites, and theyre quotes are in the 300's. So does anyone know of any cheap CNCing service based website they could share?

How do i use this... (underside of a button)



how do I solder a wire to this so that I can use a microcontorller to trigger it via outputs?

My SRF05 Wont work with my Picaxe!!

I soldered everything up correctly as Frits's tut said, and when I plug in the power to the picaxe, after 7-10 seconds, the SRF05 board and everything gets extremely hot... Did it burn out? How can I see if the SRF05 still works?

I need old Antennas, or something used for drum sticks, for a drumming robot :).

Ill send PayPal money, what I do have is two GM2 224:1 Offset Shaft motors that I can trade, what I need is two rods for the front two GM10's and one for the bass drum. Any reccommendations would be lovely. I would rather it be hollow and bendable. If youve seen Fritsl's YDM, then you would know what I am talking about!

How big is the difference between the GM2, 3, 8 and 9s?

I know the higher gear ratio the faster, but what is the difference between the fours, and is it that large?


The solarbiotics if that makes a difference

Oh and never mind the offset ones, the difference is obvious there.

header pins question

Does picaxe 28x1 microcontroller board use 0.60 - 1.0mm header pins (round or square).

How to connect the SRF05 to Arduino Decimialia?

How do I do this? Ive seen things for the PING but not the SRF05