need a speed controller

[gizmo]

Hi I'm new to the forum and I want to know which speed controller to get. My budget is low but how high my budget can go is down to quality. I decided on the other parts from other posts on the forum.

[calumco]

Re: need a speed controller

hey

what motors are you using, what voltage and heavy weight, feather weight or an ant or something?

[gizmo]

Re: need a speed controller

I'm using 2 18v drill motors and I'm building a feather weight

[gizz]

Re: need a speed controller

The sabertooth 2x25 would probably suit your needs. Or double electronize ones which is even cheaper i think.

[jonny]

Re: need a speed controller

i'd recommend either:
2x 30 amp electronizes (£86)
sabertooth 2x25 (£96)
scorpion xxl 2x20 (£100) excluding shipping and tax etc

as your using 18v drill motors instead of 12v i think they'll draw more than 15amps. besides it's only £20 extra for 30amp electronizes than it is for 15amp. better to be sae than sorry

[gizz]

Re: need a speed controller

That is true, and the electronize price is including post, packing and V.A.T according to their site.

[gizmo]

Re: need a speed controller

Thanks for the advise guys I'm hopefully going to start on my robot this week

[gizmo]

Re: need a speed controller

which website can I get the 30 amp electronize speed controllers from

[RogueTwoRobots]

Re: need a speed controller

http://www.electronize.co.uk/model_elec ... frames.htm

[Leonardomayo]

Re: need a speed controller

A slight bump I know, but I thought it was better than making a new thread.
To run 2 18v drill motors, would a sabertooth suffice? Or would it be pushing it?

[typhoon_driver]

Re: need a speed controller

running 18v would probably be ok but i'd never be happy about pushing a couple of robots around with it ie stressing it

[Leonardomayo]

Re: need a speed controller

Would a scorpion xl/xxl be good? Or is the Electronize the only one which would cope?

[typhoon_driver]

Re: need a speed controller

never used them but many people have very successfully used the scorpion controllers in relatively big current draw applications.

[razerdave]

Re: need a speed controller

I used a scorpion XL on a pair of 18v drill motors run on the same voltage, didn't have any problems after numerous fights (including a butt-kicking from Little Hitter) until I moved to spektrum, because the battery eliminator circuit (BEC) was not powerful enough to supply the receiver, so I had to buy a seperate voltage regulator/BEC to supply 1.5A to power my RX, Gyro and switcher

[Leonardomayo]

Re: need a speed controller

Why do people use the scorpion over the sabertooth? According to the website the scorpion can only take 12.5a continuous current on each motor while the sabertooth can take 25a on each with a higher peak.