Stepper motor control

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Stepper motor control

Post  Steffen on Fri Feb 05, 2010 3:56 am

Hi!
My plan is to make a cutter with a stepper motor like many of you have, but the problem is that my knowledge of electronics is rather low.
Ideally I'd want to be able to choose between complete parabola and a jumping jet by the push of a button, but I'd need a circuit/controller that is easy to program/control to either let the water through or cut/uncut it with a pre-set timer.

How are your stepper motors driven? Any useful guides or kits you can link me to?

Thanks!
-Steffen-

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Re: Stepper motor control

Post  liteglow on Thu Mar 25, 2010 2:15 pm

I got some e-mail from a Chinese producer of jumping jet.
And it said it uses Sanyo Step Motors.
So that make the rumors true, they dont use a solenoid !!

I did some search at eBay and found this: http://shop.ebay.com/?_from=R40&_trksid=p3907.m38.l1313&_nkw=Sanyo+Step+Motor&_sacat=See-All-Categories

Step motors is for sure the best thing to use.
But sadly I dont know anything at all how to use this Surprised Sad
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Re: Stepper motor control

Post  Magic-nozzle on Wed Mar 31, 2010 12:22 pm

Hi Filip, Hi Steffen, how is life? Using a stepepr is cool, the best cutter i ever had. The best way is to use a pc or a microcontroller. To make it easier, you can use a STEPPER controller board like this one http://www.shop.robotikhardware.de/shop/catalog/product_info.php?products_id=208. All you need to, is to giving the direction on one pin +5V = right, nothingh is left, and than the step on another pin (step means +5V = 1 step - than 0V another step - +5V another step and so on, that is all. Now you need something that makes arround 20 steps +5 .. 0V .. +5 .. 0V .. to moove the cutter (example) 1 inch. That is the only problem, a microcontroller can do that easy, or a PC. you need to google a bit for it, i am shure there are some boards out there can do that. the other thing is, a stepper never knows a zero point. You need a switch, i use a reed magnet contactless switch. when i start up, i drive right= backwards to that point and 0 is set. If i can help, let me know.

By the way, my systrem is running again outside since today, i made some changes, more light and a better stream, looks perfect, better than last year! *BIGSMILE*

Regards Mario
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Re: Stepper motor control

Post  John on Wed Mar 31, 2010 1:07 pm

If you know how to program micro controllers then it's not so bad. If you don't, it might be time to learn. I'm still learning and it is difficult but there is some good information online. If you are going to learn micro controllers I would suggest learning the arduino. It's open source!!!!

I use this to aid in the control of the stepper. It makes it really easy. I think you just need 2 pins to control the stepper. One to tell the direction and one to tell it to step to the next step. VERY NICE!

http://schmalzhaus.com/EasyDriver/

I believe that that controller is open source too!!! (I love the new era of open source information).
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Re: Stepper motor control

Post  liteglow on Thu Apr 01, 2010 6:06 pm

I only have a USB relay board that can turn the relays ON \ OFF !
So I think I stick to my solenoid this year also Razz

Mario: Better light cheers how did you manage that ?
My light was no success last year, so I was planning to drop the light in my laminar jets this year Embarassed
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Re: Stepper motor control

Post  Magic-nozzle on Thu Apr 01, 2010 11:35 pm

liteglow wrote: Mario: Better light cheers how did you manage that ?
My light was no success last year, so I was planning to drop the light in my laminar jets this year Embarassed
Hi Filip, i answer this question in my post http://laminar.forumotion.com/laminar-nozzle-talk-and-pictures-f1/my-laminar-garden-project-finally-installed-t66-30.htm just not to go too off topic.
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