Speed control help

**fede88** · 10th March 2005, 18:56

Hi to all, im a new member of this forum. Sorry for my english but im italian, i come in this forum beacuse there arent italian robots forum.

Im build a robot, i have 2 motor of a wheelchair, i want to build the speed control.

someone can explain to me how to build it.

thx

10th March 2005, 19:45

In English:
Not trying to offend you but building a speed controler for a heavyweight is very difficult unless you just want on and off control.

Unless you are an electronic engineer I would not try to build a proportional speed controler.

Here is an on off reverse speed controler diagram by bugs:
http://www.bugs.nl/media/source/projects/speedo/relay-layout.jpghttp://www.bugs.nl/media/source/proj...lay-layout.jpg

Regards
Ian Mc Donald.

Ed in italiano
Sta provando ad offenderlo ma sviluppando un controler di velocitÂ per un heavyweight molto difficile a meno che desideriate appena il controllo avanti/stop.

A meno che siate un assistente tecnico elettronico non proverei a costruire un proporzionale accelero il controler.

Qui Â¨ sopra fuori dello schema dinversione del controler di velocitÂ dagli Bugs: http://www.bugs.nl/media/source/projects/speedo/relay-layout.jpghttp://www.bugs.nl/media/source/proj...lay-layout.jpg

Considera
Ian Mc Donald.

**chompalot** · 10th March 2005, 20:27

would a speed controller relying on a servo and microswitches pass a tech check?

hear my latest efforts to develop a speed controller http://www.chompalot.co.uk/motorcont1.htm www.chompalot.co.uk/motorcont1.htm

Si

**woody** · 10th March 2005, 22:07

You could try ...
http://www.zapiweb.com/mainita.htm http://www.zapiweb.com/mainita.htm
They might be generous and give you a couple.

Or purchase some from http://www.technobots.co.uk/en-gb/dept_68.htmlhttp://www.technobots.co.uk/en-gb/dept_68.html

**bugs** · 11th March 2005, 09:52

As long as you use a failsafe on the servo a relay drive system will pass the techcheck. Ive seen several fethers and heavys running on relays.

**fede88** · 11th March 2005, 12:05

thx very much.

It is possible construct a circuit to connected directly to the receiver, to creat an on off reverse speed control??

11th March 2005, 12:37

Just use a servo such as this:
http://www.sussex-model-centre.co.uk/B305%5FServo-4834.htmhttp://www.sussex-model-centre.co.uk...Servo-4834.htm

That is what the white cross represents. You will also need one of these on each servo:
http://www.sussex-model-centre.co.uk/FS%2D1%5FFailsafe%5FUnit-1402.htmhttp://www.sussex-model-centre.co.uk...FUnit-1402.htm
Also available from:
http://www.technobots.co.uk/index.html?target=dept_229.html&lang=en-gbhttp://www.technobots.co.uk/index.ht...tml&lang=en-gb

Regards
Ian