Machsupport Forum

Mach Discussion => General Mach Discussion => Topic started by: martin2day on October 21, 2025, 03:08:00 AM

Title: Mach3 mist sprayer (stepper) external controller
Post by: martin2day on October 21, 2025, 03:08:00 AM

Hello everyone,

today i have a mist sprayer with an Stepper and Air contolled by an arduino.
Now i am thinking off implement this into Mach3.
I don't want to change my wiring and setup in the machine, i am thinking of an standalone system only connect to mach3 via an modern interface.

My questions:
Is this possible?
Can i use an arduino for this? If so, what interface and protocol is possible?

Thank you for your help.

Have a nice day
Martin

Title: Re: Mach3 mist sprayer (stepper) external controller
Post by: Tweakie.CNC on October 21, 2025, 04:02:33 AM

Hi Martin,

Yes it is possible.

I have used a Chinese HID Relay board to switch a vacuum pump and an extractor via USB with no connections to the actual CNC machine. I works great.

This thread refers; https://www.machsupport.com/forum/index.php?topic=42968.msg278574#msg278574

Tweakie.

Title: Re: Mach3 mist sprayer (stepper) external controller
Post by: arturod on October 21, 2025, 06:20:30 AM

Very interesting device and application.  We have a similar one: https://www.cnc4pc.com/shop/c92-c-modbus-server-4753

Sometimes it can be a little scary hooking up relays to a PC that are driven by software only, so we added an external enable input that can be hooked up to the enable line of the system.

Arturo Duncan
https://cnc4pc.com