A new comer

**francis_1** · 25th October 2007, 16:16

Hello, im looking to build a featherweight robot as a project for uni, but im not too sure where to start. ive been reading up on the forum, to get an idea of parts to look out for. so far, i know ill have to buy a cordless drill and strip it, to get the motor, the gearbox and the battery. battery value should be 12-14.4v. itll be a great help if you guys could give me a push in the correct direction. ive also come across a section in the forum that shows a layout of the drive system, im not too sure if i could use that particular method, or if there are other methods. thank you.

**maddox** · 25th October 2007, 17:11

Hoi there,

On drive lay outs, there are as much options as you can imagine. But the most used in feathers are 2 and 4 wheel drives.
With the 4 wheel drive, the 4 wheels are in the corners.
2Wheel drive, I opt for wheels just behind the center of gravity.

Batterydrill drives, Never used them myself. So I cant give direct applicable advice.

**teamshock** · 25th October 2007, 18:54

In my opinion cordless drills are great for featherweights- my robot whirlpool uses 4, 12volt drills and has more than enough pushing power.

Heres a video of it at the London Expo last weekend pushing a 12kg beer barrel around (the batteries were running low when it was filmed) http://www.youtube.com/watch?v=Lo5dafd-MGg

25th October 2007, 20:18

Whirlpool is a quality robot.

What speedos are in there Will?

I like the lights.

**teamshock** · 25th October 2007, 22:22

Thanks for the nice comments.

We use a scorpion XL speedo in whirlpool but we have 2 small PC fans fitted to keep it cool.

**john** · 26th October 2007, 02:38

we use them little blue speedos from leo

they have worked fine for ages now prob over a yr

think its time to get them changed just incase they go boom in a comp soon lol

and beauty use drill motors and is pretty powerful and speedy for what is it

28th October 2007, 18:12

Get two or four drills-maplin do powerful 18v cordless drills for about Â£13.

http://www.maplin.co.uk/Module.aspx?ModuleNo=221018&source=2001&doy=28m10http://www.maplin.co.uk/Module.aspx?...2001&doy=28m10

You can use the batteries out of these to power your drive.

Go to technobots and get two electronise speed controllers-

http://www.technobots.co.uk/acatalog/Online_Catalogue_Electronize_Speed_Controllers_351 .htmlhttp://www.technobots.co.uk/acatalog...Speed_Controll ers_351.html

While your there get the 40mhz 4ch transmitter-

http://www.technobots.co.uk/acatalog/Online_Catalogue_4_Channel_Technobots_40MHz_251.ht mlhttp://www.technobots.co.uk/acatalog...chnobots_40MHz _251.html

E-mail James Cooper and get some wheels off of him-whatever size you want(75mm,100mm,125mm and 150mm).These come with a nut in the wheel that just screws sraight on to your drill motors.

Go to your local metal/plastic stockholders and get a load of polycarbonate out of the scrap bin(6mm upwards should be enough).For about Â£30.

A decent robot for about Â£150.

I dont think ive missed anything-but if i have im sure someone will point it out.

Perhaps someone more exsperianced will give you better suggestions.

Hope i helped anyway.

Dan.

**francis_1** · 29th October 2007, 11:52

cheers fellows

**francis_1** · 29th October 2007, 11:55

all your comments helped me alot. thanks again
Francis

**leorcc** · 29th October 2007, 12:13

I dont know if you saw this already:

http://www.fightingrobots.co.uk/discus/messages/89/10050.html?1193653253http://www.fightingrobots.co.uk/disc...tml?1193653253

Perfect for a first feather.

Thread: A new comer

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