0-10v spindle control?

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Skyler
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Joined: Fri Oct 30, 2020 10:25 am

0-10v spindle control?

Post by Skyler » Mon Jul 19, 2021 6:28 pm

It seems like the Buildbotics control doesn't currently have a 0-10v output for spindle control? Is there a work around way to control a spindle system that needs such an input?

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Doug
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Re: 0-10v spindle control?

Post by Doug » Tue Jul 27, 2021 1:14 pm

Yes, you can connect a 3.3Volt PWM to 10 Volt converter to the pwm output on the DB25 connector. Here is a link to such a device that I have used.

https://www.ebay.com/itm/124779665214?c ... 229fde364f

Our next batch of controllers will have this capability builtin.

Skyler
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Joined: Fri Oct 30, 2020 10:25 am

Re: 0-10v spindle control?

Post by Skyler » Thu Aug 05, 2021 5:40 pm

Great, thank you.

Nice, is this next batch going to be like a V2 controller? Or just some minor changes?

Skyler
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Joined: Fri Oct 30, 2020 10:25 am

Re: 0-10v spindle control?

Post by Skyler » Fri Aug 06, 2021 11:55 am

Would this work?

https://www.amazon.com/gp/product/B08JT ... U0Q5Y99ZUG

Is there a good way of powering it through the controller or will I need a separate power supply?

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Doug
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Re: 0-10v spindle control?

Post by Doug » Mon Aug 09, 2021 9:20 am

We expect the next batch to be available in October. There are some fairly significant hardware changes/improvements. We will be making an announcement soon.

The PWM to 0-10V converter that you referenced may not work. It is not clear that it will support a 3.3 Volt PWM signal. If you want to do this, you should find a 3.3V PWM - 0-10 volt converter. This one appears to meet the requirements:

https://www.walmart.com/ip/Tebru-0-10V- ... lsrc=aw.ds

Skyler
Posts: 22
Joined: Fri Oct 30, 2020 10:25 am

Re: 0-10v spindle control?

Post by Skyler » Mon Aug 09, 2021 11:36 am

Exciting!

Got it thanks.

Could you please advise on if there is an easy/cheap way to power it from the controller or if I'm better off getting a separate power supply/adapter?

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Doug
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Re: 0-10v spindle control?

Post by Doug » Tue Aug 10, 2021 7:43 pm

Well, the device that I referenced says it can run on voltages between 12 and 30 VDC. So, if you run your controller at 30 volts or less, you should be able to tap the power off of the Buildbotics power supply. If not, you will need a separate power supply, or a step down converter.

Skyler
Posts: 22
Joined: Fri Oct 30, 2020 10:25 am

Re: 0-10v spindle control?

Post by Skyler » Sun Sep 19, 2021 8:47 pm

I got it working with a PWM to voltage converter, and a cheap 24 volt power adapter to power the converter. For anyone who wants to do the same, here is the converter and power adapter I used:

https://www.amazon.com/gp/product/B08DY ... UTF8&psc=1

https://www.amazon.com/gp/product/B07VL ... UTF8&psc=1

It now works with my spindle motor quite nicely, but it's even better that it will be built in on the newer controller.

The motor driver I'm using has very aggressive accelerations though, is there a way to start and stop the spindle more slowly with the controller?

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Doug
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Re: 0-10v spindle control?

Post by Doug » Tue Sep 21, 2021 6:15 pm

Well, you could do it in gcode. Start it slowly and raise the speed in increments with pauses between each increment.

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