Does anyone have a good ESC solution for each of the following motors or would muy current ESC...

http://www.technobotsonline.com/saberto ... or-rc.html

be up to the task?

I intend to use 4 of whichever I choose, simply because the design has always had 4 motors and I want the robot to have some considerable push!

And can anyone suggest a suitable solenoid or ESC to drive a Speed 900 motor?

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


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For the full rant, see below...

Hi All

Despite all my hard reseach it seems that I am going to have to replace 2 critical parts of my first robot, the motors and as a result of changing the motors, the electronic speed controller as well.

The current set up is 4x 919D 50:1 metal gear box motors*, 2 for each side, linked to a Sabertooth dual 12A ESC**. I know from various tests and many hours of run time for my university demonstrations that this set up works perfectly well for about 30/45 minutes before I run my batteries flat.

But now after talking to Robo-challenge and a few others on this Forum that the motors are woefully inadequate. I have found an alternative for myself and been shown 2 other but these motors as well as being more robust are considerably more power hungry, or ampage hungry at any rate.

The options are€¦

1: http://www.technobotsonline.com/re-975d ... x-4-1.html

A planetary version of my current motors but with a bigger motor.

2: http://www.ebay.co.uk/itm/JAGUAR-XJ40-X ... 20be5252b7

Bosch 35w motors, I know very little about these.

Or 3: http://www.gimsonrobotics.co.uk/GR01_pl ... motor.html

Again knowledge is limited above what is given on the data sheet.

For option 1 it may be possible to keep my current ESC but only run 2 motors, though I would prefer to run 4 as the design has always fitted 4. For 2 I have no idea what voltage or current they require and for 3, with theoretical peaks of 70A, the Sabertooth would become a singed electrical mess in no time at all.
I know that ESC€™s are expensive but what options do I have regarding a replacements for each motor option?


* http://www.technobotsonline.com/re-540- ... -50-1.html

** http://www.technobotsonline.com/saberto ... or-rc.html