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Charles Emrick
Feb 19, 2013, 6:21:22 PM2/19/13
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I have been charged with checking to see if a BiSlide could be controlled with an Arduino for some Stop-Motion (preferably using Dragon Stop Motion Software)
I can not seem to find any real documentation as to the electrical specs, and given my little knowledge of Velmex products I thought I would ask if anyone has done this before?
I can not seem to find any real documentation as to the electrical specs, and given my little knowledge of Velmex products I thought I would ask if anyone has done this before?
Colin Reese
Feb 20, 2013, 8:16:55 AM2/20/13
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All arduino boards have at least one serial port, so controlling a vxm controller would be no problem there.
You could control it directly, but you'd need a bipolar stepper motor shield or to design your own hbridge.
Personally, I'd use a Raspberry Pi.
Colin
VelmexControls
Feb 20, 2013, 8:37:45 AM2/20/13
to velmex-...@googlegroups.com
I have never tried it, but from what I have seen online the arduino would need a driver board to be able to power a motor that would be of any use.
I do not have any electrical specs but all videos and examples I have seen can only drive low power motors (if you are lucky maybe a PK245 could be used)
Using arduino serial port might be used (but seems a little redundant as the VXM can be programmed directly in most cases (and can drive larger motors with the torque necessary to drive a BiSlide)
I do not have any electrical specs but all videos and examples I have seen can only drive low power motors (if you are lucky maybe a PK245 could be used)
Using arduino serial port might be used (but seems a little redundant as the VXM can be programmed directly in most cases (and can drive larger motors with the torque necessary to drive a BiSlide)
Colin Reese
Feb 20, 2013, 2:03:22 PM2/20/13
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You would definitely need power mosfets with a bjt or fet driving them. Because of the bidirectionality, you'd need an hbridge.
C
colin...@interfaceinnovations.org
Feb 21, 2013, 8:05:28 AM2/21/13
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https://www.sparkfun.com/products/10735?
just compare the amps/phase rated (2A) to datasheets, e.g. here: http://www.velmex.com/pdf/mc/vexta-nema23-M-motors.pdf
C
mitch.l.evans
Feb 21, 2013, 8:06:00 AM2/21/13
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The Allegro A4983 driver used on the Sparkfun stepping motor driver is rated for only 2 amps and 4 watts maximum power dissipation (page 5 of data sheet: http://www.allegromicro.com/Products/Motor-Driver-And-Interface-ICs/Bipolar-Stepper-Motor-Drivers/~/media/Files/Datasheets/A4983-Datasheet.ashx
The Velmex VXM Stepping Motor Controller can conservatively put out a continuous 3 amps and 70 watts (drives are 15 amp MOSFETs rated at 88 watts.)
The result, thousands of VXM controllers in the last 11 years and never a motor drive failure.
Mitch
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