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No, no. The pin mapping in that other post is just a different parallel port than what you are used to seeing. This machine I have runs a parallel port / cable between the controller box and the cnc...

Well, I've mapped the parallel port but there's no numbering on the board itself. It's at https://www.cnczone.com/forums/chinese-machines/419994-cnc-software.html

The only signal connections...

The thing is, the spindle will run at 24000rpm when that pin is only 1V. The 10V signal only occurs before BL-USBMach has come up (ie: before Mach3 is started).

My theory is that the board...

Greetings,

I have a LY Group 3020 bought in 2020 from AliExpress. I'm upgrading it and figured others might like to learn from the details.
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For anyone in a similar situation, I have a LY Group 1.5kW CNC kit that came fully assembled and it is set up the same way. I've probed the spindle output of the BL-USBMach board with a scope, and no...

Check that your GRBL step/microstep settings are correct for the driver and steppers that you are using. For example, if your drivers can handle 800 microsteps/mm and your grbl is configured for 1600...

Hello, new member here in 2020. I purchased a very similar machine called a CNC 3020 from Chinese LY group (LY-CNC) from AliExpress. The vendor gave me a folder full of instructions and DLL files,...