building a drum spinner

[jonny]

Re: building a drum spinner

yeah if any body wants a partner for a cluster bot, drop me a line :wink:

[mattsdragons]

Re: building a drum spinner

if your bot can come in about 1kg then I would

[Anttazz]

Re: building a drum spinner

Might need some helium balloons for that to happen.

[mattsdragons]

Re: building a drum spinner

I think a pair of drill motors weight about 400g each

[harry hills]

Re: building a drum spinner

i know, 2 drills, 2 reeealy small batterys, 10mm thick armour all round, stainless steel base and alumium front (plus escs) acem to 4.1kg :shock:

[mattsdragons]

Re: building a drum spinner

i know, 2 drills, 2 reeealy small batterys, 10mm thick armour all round, stainless steel base and alumium front (plus escs) acem to 4.1kg :shock:

how long would your batteries last?

[harry hills]

Re: building a drum spinner

they survived a day of white boards, they were 2800mah

[Anttazz]

Re: building a drum spinner

Daiske is 4.5kg or so and the 7.2v 4300mAh batteries are the heaviest thing in there, they lasted for testing, 4 fights at the champs, and a fight back home without needing charged

[Max]

Re: building a drum spinner

I have used 40A car relays in the past.

What is that?
Ps. Please can you get back on subject rather than discussing some private fight?

[mattsdragons]

Re: building a drum spinner

I have used 40A car relays in the past.

What is that?
Ps. Please can you get back on subject rather than discussing some private fight?

its at en event!

and anyway, he just knows I would trash him

[Max]

Re: building a drum spinner

ill have a 1vs1 battle with you after one of the shows if we can?

[harry hills]

Re: building a drum spinner

what?

[mattsdragons]

Re: building a drum spinner

I'm as confused as you harry

[Max]

Re: building a drum spinner

Ok, just to clarify
By private fight I meant battle between robots not as part of a competions but private. I quoted matt to say it was not an actual event but a private fight afterwoods
Happy?
Good, now can we get back to answering my questions?
Just to get back on topic, could I make my own controller for the drum with a servo and micro switches?

[typhoon_driver]

Re: building a drum spinner

use a battle switch and one of these

http://cgi.ebay.co.uk/Automotive-Relay- ... 1e6344df4e

or one of these

http://www.jaycarelectronics.co.uk/prod ... BCATID=754

The second relay is more expensive however it is far more reliable as it is a solid state relay (no moving parts). The lack of moving parts means that there is no chance of the relay fusing when it switches over (the spark that comes when you connect wires). I would not recommend a servo because it isn't an iron clad failsafe when radio contact is lost.

Boner, when it used speed 900s, used the solid state relay and a battle switch (battle switch to interface with radio gear and switch on the larger relay which directly controlled the motor)