Battery

[Gabe01]

So how long do they last ? 4700? . There are 5000's on there

[RogueTwoRobots]

What type of motors do you have in mind to spin the disc?
Drill motors will happily get through a 3-min fight with a battery around the 2000mAh mark, but it all depends on how current-hungry your weapon motors are.

Also, not sure if you know or not, but current regulations mean that you can only run FW spinners in a fully-enclosed arena (10mm thick polycarb walls and, I think, 6mm roof) and the only arena in existence at the moment that complies is the Robo Challenge arena. These guys only tend to host a couple of events a year, so with a spinner, you will be limited to the number of times that you can compete with it, unless you run it without spinning it or fit a different weapon at non-spinner events.
(James from Robo Challenge has said that they're working on one or two possible full-combat events in the spring-time)

[Gabe01]

I could do with a pointer on a disc motor. I will build a spinner and then build the interchangeable drill press weapon. The plan is to build more than one and fight them in the barn, old school style. I have a idea I might build a mini chaos 2

[Max]

For a spinning disk most people use speed 900 motors (£36 from Sussex model centre or Cornwall model boats), there are also some cheap (£12) motors like the speed 900 on eBay- they are a bit discoloured and spin faster and less speed than real speed 900s but still not bad I think. Some people use brushless motors and magmotors but I now nothing about them!

[Gabe01]

Thank you

[RogueTwoRobots]

When it comes to disc motors, your first choice is brushed or brushless motors. Brushless motors are really proving their worth now but brushless-powered spinners tend to fall into the 'bloody hell that's insane!' category and are considered the higher end of the power scale. If you want something that will still do damage but is cheaper than a brushless setup, there are two main options that have proven to be decent.

The first is to go for a Speed 900 electric motor (or two) to power your disc. Drumroll/Boner, Savage Evo and Inertia XL have all had success using them. They're relatively cheap (just under £40) and can be powered either by a speed controller or relay.
I bought my most recent one from Cornwall Model Boats, and it made it from Cornwall to Scotland in less than 24 hours!

http://www.cornwallmodelboats.co.uk/aca ... _6373.html

There are a couple of other sites that stock these but they're all around the same price mark.

Alternatively, get yourself down to your local car breaker's yard and hunt out a car fan motor. Ford Mondeos seem to be the popular choice. These motors are similar to the EV Warrior that used to be available, and they're capable of performing around the 1hp mark. Better yet, you can usually get them for £5-£10. Dragonstrike is the best example of how effective those motors can be.

I'll get some video links that show the performance of the two.

[Gabe01]

Yes please on the links, I will look into the suggested motor options

[RogueTwoRobots]

One Speed 900 at 19.2V:

[Gabe01]

Thanks for that, not much in it. Which motors are lighter ? I'm now really looking forward to getting started. I will start purchasing all the bits next week

[mattsdragons]

the the fan motors dule direction? i may upgrade my drive for them