My Robot: so far

[Roboteernat]

Hi All, just thought i would show off the robot so far, im hoping to showcase mine and my partners bots at Brighton makerfayre, or other AWWScomming up,

here is a pic, and a pic of the basic mock up

Assem2.JPG (113.98 KiB) Viewed 5429 times

has a 1500Kv brushless outrunner with a blade (circular or teethed) titanium ramp, polycarbonate rear cover
runs from 350mAh battery and 2x430RPM motors.
Motors may be 130 depending on performance.
Pololo wheels, possibly gyro if needed and custom controller running from DSM2 micro RX (those very thin ones... cant remember what they are... Rx42-d ones....

I need to adjust a few things in the design (add holes etc as weight is about 165g without gyro est)
3D chasis is currently printed on my printer, with high infill so may adjust that...

Potential for carbon fibre if needs too, so we shall see.

more info inc pics of actual robot on my blog http://www.roboteernat.co.uk
Thanks

[haz]

Hey, that's really something, looks like quite a well rounded robot. How heavy will the bar/disc be?

[Roboteernat]

Thanks, i been working on it for while getting and sourcing, programming and whatnot, but the blade is something i yet to weigh and build, but im hoping not much!
Once i got the basic frame setup i will get the blade made and checked, but should be 10-20g? not sure... prob 10ish, hey im just guessing

[peterwaller]

Yes that is looking good one place you might be able to save weight is on the titanium ramp.
I find the the spinning blade makes very effecive armour as long as it continues to spin.

[Roboteernat]

http://www.flickr.com/photos/23609505@N ... otostream/

just an update pn progress, having issues with the controller - other pos, but looking great!

[EpicentrE]

Looking really good! I still think well designed horizontal spinners can do well, if they can manage not to throw themselves out of the arena, so I wish you the best of luck. Will you be coming to the AWS?

Also, how did you get the smooth circular bend on the back of the polycarbonate? It's something I've had trouble with previously.

[Roboteernat]

Hiya EpicentrE, Thanks.

It has taken a few developments, but getting there, its still overweight so i have reduced plastic thicknesses alot on the outside. blew up my 3d printer last night so could not print a new one.

The polycarbonate rooll, to be honest, i heated it up under the grill and bent around the rear of the robot toget the form. In future i will be using a tube that has the right diameter of the curve i need -rolling pin, pipe etc

but use an insulator to place ontop of plastic as its formed, then hold it till it cools so it retains that shape.

Bear in mind, too long under heat source tends to bubble it! so avoid using a lighter to heat plastic up! lol