Feather weight spares

[archie2000]

Has anyone got any motors batterys armour or wheels that I could use in my first featherweight
Thanks,
Archie
Team fire force

[typhoon_driver]

Motors with gearboxes, these are ideal - http://www.argos.co.uk/static/Product/p ... +DRILL.htm

Wheels, I'd advise the robochallenge wheels with the nut insert that screws directly onto the above motors - http://web.me.com/robochallenge/Robo_Ch ... nical.html

You can also find drill motor mounts from the robochallenge guys which will allow you to directly mount the motors to a chassis.

Armour - cheap simple armour that's easy to machine i'd recommend HDPE, http://www.directplasticsonline.co.uk/

Look at using around 8mm plus for some decent hard wearing armour that will take the hits from the majority of robots, spinners included.

Batteries, you could either use the ones that come with the drills (slightly underpowered) or these http://cgi.ebay.co.uk/12v-NiMH-3700mAh- ... 563e83073a

You will need a charger able to charge them.

[archie2000]

Thanks loads for that
Could the HDPE @1mm be used in an antweight?
cheers archie

[psycho_fling]

ive got a spare charger for fw batteries if its of interest ?

[archie2000]

What type?
PS I HATE LIPO'S

[psycho_fling]

the charger??

yeh if you dont have the experience of batteries in general stay well away from lipos :twisted: lol

[archie2000]

Yeah 3 hyperions blew up that I used in my antweight . but i'll sort myself out thanks very much everyone your help is much appreciated and other young roboteers could learn wisely from this.
wish you all the best
Archie
team fire force

[joey_picus]

Yeah 3 hyperions blew up that I used in my antweight

...how did that happen? I've had batteries overdischarge and not work afterwards but never blown them up.

[archie2000]

Well the ones I used in Barnsly just stopped working (do you run Jigsaw till its dead or charge it up a lot?)
and the other 2 shorted out and expanded positive and negative wires touch they blow WATCH OUT TAPE UP ALL WIRE WITH NO INSULATION BEFORE PUTTING THE BATTERY IN!

[joey_picus]

Well the ones I used in Barnsly just stopped working (do you run Jigsaw till its dead or charge it up a lot?)
and the other 2 shorted out and expanded positive and negative wires touch they blow WATCH OUT TAPE UP ALL WIRE WITH NO INSULATION BEFORE PUTTING THE BATTERY IN!

I usually run Jigsaw for a bit before stopping and charging it just to be safe. You can get away with running it until the first signs of a noticable power decrease - which in my robots manifests itself as a drop in speed on one side - and then turning the robot off and charging the battery straight away - you do need to look after lipos to get the best life out of them.

As for the shorting issue, what I do is I have matching JST plugs for the connectors soldered in to the speed controller so there's no way I can short the wires. It is definitely something to avoid >_<