Some general tips please

[Guest]

Some general tips please

well ok listen
i will be running the motors independently for tank steering. the motors will be running at 24v at 300w. and do i need two speedos or just two heatsinks? can this speedo handle this?

[woody]

Some general tips please

The controller should handle BOTH your 300w motors IF you can add a suitable heatsink.

I believe option d) would give you tank style steering.

The parts of the controller that need this heatsink are the Mosfets ( they get hotter as the amps draw rises ) ... they have their own small built in heatsink that will handle getting rid of the small ammount of heat generated @ 5 amps ......but need an additional heatsink to reach their continuos rating of 22 amps.

A heatsink is usually a aluminium block and more often than not it is finned.
Its aluminium because this conducts heat away efficiently and finned to increase the surface area and thus the cooling.


Paul Copper @ Technobots was hoping to supply such an item for the MD22....try E-mailing him.

[woody]

Some general tips please

Link to a pic of the controller below the MD22 .....the MD03 single motor controller with a heatsink .... the black finned item .

http://www.technobots.co.uk/media/1502-010.jpghttp://www.technobots.co.uk/media/1502-010.jpg

Im NOT recommending the MD22 ....only showing you an option in your price bracket.

Id recommend buying a complete set up from one of the forum members IF you can find one on offer in your price range.

[Guest]

Some general tips please

I think im gonna buy 75A 24V 4QD VTX speedos
http://www.technobots.co.uk/en-gb/dept_518.htmlhttp://www.technobots.co.uk/en-gb/dept_518.html

[storm]

Some general tips please

By which you mean these - http://www.technobots.co.uk/en-gb/dept_475.htmlhttp://www.technobots.co.uk/en-gb/dept_475.html ?

Ed
http://www.teamstorm.comhttp://www.teamstorm.com

[woody]

Some general tips please

I think youll find that you need 2 ..

£85 each ...thats £170 ....plus an interface board @ £70.
Seems a little over budget!

BTW Complete...ish robots are being sold on this forum for less than £250.
http://www.fightingrobots.co.uk/discus/messages/89/4032.html?1109337255http://www.fightingrobots.co.uk/disc....html?11093372 55

[Guest]

Some general tips please

i suppose they are over budget. i dont think i can buy a complete one cos the building will also count to coursework

[woody]

Some general tips please

OK ......and good luck

[typhoon_driver]

Some general tips please

couldnt you just buy one for the parts?

[julian]

Some general tips please

The best way is to get a complete wheelchair and use the two motor/gearbox set plus controllers.

[Guest]

Some general tips please

We are currently in the proccess of buying a half built robot intending to strip it and use th parts

[Guest]

Some general tips please

mark is planning on cheating in the competition and buying a full robot kit. He destroyys the entire game!

[Guest]

Some general tips please

meet my insane teamate

[Guest]

Some general tips please

im not insane the world must here the truth mark is a cheat andslightly evil!

[bugs]

Some general tips please

Oh great, pinky and the brain are building a robot.