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/diy/ - Do It Yourself

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187382 No.187382 [Reply] [Original]

I didn't even know this board exists on 4chan.

Any one with stepper motor experience?

Thanks

>> No.187392

>>187382
Sure, what do you want to know?

>> No.187393

>>187382
you better hurry with the info-getting, OP. this board's only 19k posts old and is already getting infested. We already have a board troll and everything!

>> No.187396

Just finished a grabber claw and utilised a genie pic-chip, l293 and stepper motor. I think I might be able to help you if it's at a basic level.

>> No.187397
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187397

>>187392
I want to know about the "holding torque" is this more important or is the moment or the torque that needs to put the thing in motion, I see all sites talk about holding torque.

Second, I'd like to use this: https://shop.tinkerforge.com/stepper-brick.html for a little project of mine, but the current is 2.8A max. So how can i use that board with a bigger motor that requires more current?

I've found this site which is quite helpful: http://www.oriental-motor.co.uk/Info_center/Service/Motor_selection/Selection_by_type_of_drive/ and actually I'm going to use this motor to rotate an axle which has a crane at the top, so I don't really know which is the best suitable motor for this thing.

Thanks

>>187393
Well shit, I hate tchrolls.

>> No.187402

>>187393
>troll speaking in the third person.

>> No.187404

>>187397
You should first figure out how much power your application will require; 2.8A per phase is already quite a lot.

You need to know how much N/cm your motor will have to supply, then search for a suitable stepper motor, then a suitable driver board that is able to supply the current and voltage the stepper motor needs.

>> No.187819

>>187402
Yeah chad, they're getting more sophisticated every day.

>> No.187830

>>187397
>"holding torque"
It's simply how much torque it can resist in hold mode before it starts turning due to the external torque. If you're compressing or stretching some spring or elastic structure this will be important. For a crane axis not so much, for a crane rope(or whatever the load carrying wire is called) it would be more important.

>> No.187831

>>187397
How large is the device? Do you know how to use that stepper driver?

If you want computer control, there's this board called an EiBotBoard that have controllers for two stepper motors and USB connection..., although lesser Amp rating(and no heatsinking by default)

>> No.187832

>>187831
Disregard that USB part, I'm a blind moron.

>> No.188018
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188018

>>187831
Yes, well ,,, logically I figured that out, but was wondering how to find more data about the "moment", the moment of putting the axis in motion, say the load is 10kg in both ends of the shaft -- which sits on top of the axle -- is going to be balanced, so how much Nm does it need to put it in motion?

>>187830
Well I need a board which can be programmable and can send the commands wireless. So I've found that tinkerforge is perfect. Biggest worry is about the current.

Thanks