Hey. OK i'm building a featherweight and it's called ranos. I'm still in the design stage and i need a good CAD program cos mine's not doin the job and i don't really wanna draw by hand. can some1 help me out?

Everything is vapour except name and type of my robot. and a picture i drew in paint that doesn't look like anything. OK rite back so i can get seriously designing!!!!!!!! Thanx.

Jolt, is a pretty effective robot, but with combat robots it all comes down to budget... it depends how much you're willing to spend. If you want a mag motor powered spinner like jolt... er... nick could you put some figures on it?
Don't forget, high price spinners often get owned by getto cheap built bricks
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Magmotor Gearbox combo is around $800-1000 once imported....
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https://www.halfdonethings.com/

Thats the one!
And another thing i ran into when considering a mag/gearbox combo is all the other stuff you would need to run the bot... high price 3600mah full C nicads, a light but stong frame, weapon bar, small expensive drives... getting pretty hardcore!
Build a simple wedge bot first to get an idea of the sport, then consider a death spinner even nick didn't build jolt first off!
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for first robot u dont need any expensive or hgh tech stuff to make a cool and effective robot.

Nick goes overkill on eveyrthing in his robots so he buys best parts and stuff.

EVen hes been beaten buy robots made from scrap and costing nothing.

If yoru after a spinner like his look into thermo fan motors and basic stuff like taht, cheap, reasonably powerful and good.
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Andrew Welch, Team Unconventional Robotics

What the? who voted no?

You wouldn't want a budget of less than $2K to duplicate Jolt closely . You can still make a horizontal spinner that's effective for much, much less. The first one I made was hacked together in a hurry with an EV warrior motor, drill motors for drive and it was missing several parts that made it break often - it still made quite a name for itself in it's first event.

You can use a large fan motor or two with belt drive and a bar cut out of Bisalloy (around $70 for several) with pre-made bearing blocks for a reasonably powerful and quite reliable design. You can use the drill Nicads to start with and move up to higher capacity cells later; I wiould avoid SLA batteries in a spinner as they weigh too much. With all that, you would be looking at around $300 if you used relay controllers and had no parts already. If you scavenge parts from auto wreckers and junk piles, you would pay even less.

For CAD, you can Google several basic free programs or there are several more for under $100 that are good enough for bot design. You might be able to get an educational discount version of something much better.
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Australian 2015 Featherweight champion
UK 2016 Gladiator champion

Emachine shop is actualy pretty good for mucking around
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i use rhino3d and im learning solidworks 2005. but solidworks is like $25,000 and rhino only gets you 25 saves.

as for robot design good luck building a spinner. ive been doing this for like 2 years and i still couldnt even come close to putting one together on my own. i still tore my hair out making kang and thats just a motor bolted to the base with a saw bolted to it.

just build a brick, they win more
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www.demon50s.com - Minimoto parts
http://www.youtube.com/user/HyzerGlen - Videoooozzz

yeah nicks first bot was a brick basically though a frikking cool brick that ran under the name minataur still possibly one of my fav bots to look at it was just so cool
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as a shadow is seen and not heard i am here
-Waddy the phoenix

Yeah, Minotaur's perspex wedge was sweet
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I was thinking of the first spinner I made for the Annhilator event; the bar kept falling off and the EV was destroyed after most matches, but it did some decent damage while running off only 14.4 vosts . That first bot ever was fun too, I had no idea and the wedge was plastic 'cause the batteries weighed so much. I even tried wooden drill motor mounts, which almost worked. I still have those fat 5" colson wheels for when I find a strong enough gearbox & motor to run them; a 4 wheel bot with that much traction would win a few matches and I would put titanium in place of all the crappy plastic.

Back to T Bag's design options: If you want a spinner with enough energy to win matches, you need to keep your frame as light as possible, which means aluminium unless you are very clever with steel tubing like Team Rotwang:

http://www.robowars.org/forum/album_pic.php?pic_id=1122

This shape spinner (blade out the front with belt drive) is probably the easiest to get started with and can be a real winner. Another bot with this shape and simpler construction is Cyclonite; I don't have any pics but there is a video: http://aaron.botclips.net/videos/RW3/Cyclonite%20VS%20Reboot.wmv
Cyclonite's hi-tech electronics blew up, but the frame & weapon stood up and I think it used off the shelf parts that you could easily get. Jeff Ferrara could give you more details.
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Australian 2015 Featherweight champion
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Anihilation was our first bar spinner pitty all the oposition started building low robots It might even make a come back one of these days if i get bored enought to rebuild it

Hey thanx.
But i'm not gonna replicate jolt exactly That would take Ages!!!!!!!!!! And not 2 mention the money. I'm not gonna get close! I'm goin down a totaly dif rtakc all i no is that i like the whole idea of having a spinning weapon bar. I mite not even have 1 i'm just leaning 2ward it as their cool. But yeah thanx 4 the help and i'm gonna look up those CAD programs. And if u have any idea's as 2 how i could improve a basic idea of a flattish pyramid with a blade on top.ok well reply. lol

Sounds interesting, start building it!
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Oh trust i will.
I build it and you will come.