Starting Point

[zoll]

cheers, just waiting for reply from grant but does anyone know how bit the blue wheels are nd how easy they are to attach?

[RogueTwoRobots]

The two main sizes of blue wheels used are 75mm and 100mm. They are also available in 63mm and 120mm and sizes upwards of that I believe. When it comes to attaching them, if they've got a nut fitted into the centre of the wheel it is simply a case of screwing the wheel directly on to the output shaft of the drill motor. As a securing method, the reverse-threaded screw that comes with the drill that holds the chuck on can be screwed back in with a washer on it to stop the wheel unscrewing.

Quite simple and allows for relatively straight-forward maintenance.

[muchalucha]

you will also want to look into some way of mounting the drill motors , this often overlooked but very important for a reliable bot.

[psycho_fling]

Grant (robochallenge) can also supply the drill mounting kits

[zoll]

Excellent, just waiting to hear back from him, doesnt appear to have been online in the last week. Any idea how much the wheels and the mounting kits cost?

[psycho_fling]

i have never bought the mounting kits

and the wheels vary depending on size

[muchalucha]

roughly : 75 mm ar a fiver , 100 mm are £6 and 125 are £7 , add another pound per wheel for the nuts melted in (which you will need) . so for 100 mm wheels , itd be £28 for a 4wd bot like yours , there worth the monies. No idea how much the mounting kits are.

[zoll]

Cool just need to wait for Grant to get back to me on them then. Below is a list of bits that ive decided on and those which I am still undecided.

Motors: 4 drill motors (2 already bought and dismantled)
Speed Controller: Sidewinder (looking at buying in the next week or so)
Body: HDPE (also looking to order in the next week)
Batteries: (going to use those of the drill, does this sound alright for a start?)
TX & RX (looking at the DX5 but not sure on this atm, any comments?)

Weapon: Axe (where can I find information of the a design for this?)

Thanks again as always for all your help

[RogueTwoRobots]

If you're opting for an electric axe, this article sheds a bit of light on the basics of an electric axe. Obviously axes don't have to be made exactly like this one but it should give an insight into the process/parts required:

http://www.robowars.org/wikka/ElectricAxeWeapons

And that same robot a couple of evolutions later:

http://www.youtube.com/watch?v=Fl1cOdXizC8

[psycho_fling]

i think the dx5 is good but never used it before the planet 5 is a cheaper option which a few people are very pleased with for about £40

the batteries you can make them work but you can buy some cheap nimhs off ebay which will last much longer, thi would mean you would need a different charger (not sure if you are planning on using the drill charger for those batts?) i have a multi charger which can handle many different types of batteries with lots of other functions (let me know if interested)

alex