Signal Stepper Splitter?

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esacteksab
Posts: 34
Joined: Mon Apr 23, 2012 3:49 pm

Signal Stepper Splitter?

Post by esacteksab » Mon Apr 23, 2012 3:54 pm

I stumbled upon this via a post on Reddit. In regards to a dual-drive setup, would something like this make my life easier if I wanted two motors?

http://builttospecstore.storenvy.com/pr ... l-splitter

I ordered a kit, one of the many waiting for theirs and dreaming about all the possibilities.

Thanks!
Serial # 215

levlandau2
Posts: 187
Joined: Tue Apr 17, 2012 1:52 am
Location: Minneapolis, MN, USA

Re: Signal Stepper Splitter?

Post by levlandau2 » Mon Apr 23, 2012 5:44 pm

Hmm, this looks neat and useful. Does anyone understand the current requirements to drive two motors, vs what a stepper driver can handle (for example, the grblshield) ?

If the stepper driver can handle it, this would be an easy way to implement a dual-motor Y-axis.

MLange
Posts: 70
Joined: Tue Apr 10, 2012 8:23 am
Location: Ottawa, ON, Canada

Re: Signal Stepper Splitter?

Post by MLange » Mon Apr 23, 2012 11:05 pm

I'm not sure. AFAIK, the RAMPS board runs on 12V, not 24V, so theoretically, I'd imagine that it's running at half the amperage that our 24V system would be.
Shapeoko #280 (Inventables Batch #1)

sandro
Posts: 48
Joined: Tue Apr 10, 2012 12:15 am

Re: Signal Stepper Splitter?

Post by sandro » Tue Apr 24, 2012 12:04 am

That board looks like it splits the control signals, not the driver circuit. You would use this if your control board (in this case Arduino), didn't have enough control lines for another driver, but you would still need 4 drivers.

MLange
Posts: 70
Joined: Tue Apr 10, 2012 8:23 am
Location: Ottawa, ON, Canada

Re: Signal Stepper Splitter?

Post by MLange » Tue Apr 24, 2012 12:50 am

sandro wrote:That board looks like it splits the control signals, not the driver circuit. You would use this if your control board (in this case Arduino), didn't have enough control lines for another driver, but you would still need 4 drivers.
You're right.
this board allows you to drive two stepper controllers from a single output.
Shapeoko #280 (Inventables Batch #1)

esacteksab
Posts: 34
Joined: Mon Apr 23, 2012 3:49 pm

Re: Signal Stepper Splitter?

Post by esacteksab » Tue Apr 24, 2012 12:52 am

my bad. Thanks everybody!
Serial # 215

MLange
Posts: 70
Joined: Tue Apr 10, 2012 8:23 am
Location: Ottawa, ON, Canada

Re: Signal Stepper Splitter?

Post by MLange » Tue Apr 24, 2012 1:07 am

esacteksab wrote:my bad. Thanks everybody!
I don't see how it's a bad, really. It lets you run two stepper drivers (IE A4988, etc) off of one signal. I had initially thought it was to run two steppers off one driver :oops: (which is doable, but potentially risky). Two controllers off one set of signals makes more sense :mrgreen:
Shapeoko #280 (Inventables Batch #1)

calica
Posts: 107
Joined: Wed Apr 11, 2012 8:13 am

Re: Signal Stepper Splitter?

Post by calica » Wed Apr 25, 2012 5:36 am

This splitter uses Makerbot style connections. Look here under Interfaces for more info.

I don't think this board does anything special. If just connects all like lines together.

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