Search found 1785 matches

by Bertus Kruger
Tue Mar 16, 2021 6:16 pm
Forum: Old CNC Shield V3.00 and Chines copies of it...
Topic: Multiple Steppers
Replies: 1
Views: 2473

Re: Multiple Steppers

rodkraft wrote:
Tue Mar 16, 2021 1:03 am
I am working on a lift table driven by 4 identical steppers. Can I use shield v3.00 to drive all 4 steppers synchronously.
If you use your own Arduino code, definitely.
by Bertus Kruger
Sat Mar 13, 2021 8:48 am
Forum: Current Version(2.60)
Topic: LCD display via second Arduino
Replies: 2
Views: 3395

Re: LCD display via second Arduino

I've been wondering if it would be possible to implement an LCD display like this one. https://wiki.shapeoko.com/index.php/LCD_on_GRBL#Full_version_GRBL_1.1 Correct me if I'm wrong but it appears to piggyback on the existing serial connection and extract data by sniffing/listening to the $10 update...
by Bertus Kruger
Sat Mar 13, 2021 8:41 am
Forum: Version 2.58
Topic: GPIO Triggered by Unknown Program on image
Replies: 5
Views: 3854

Re: GPIO Triggered by Unknown Program on image

A mystery it is... There is not intentional app that is connecting to them. On a RPi 3 and up the hardware serial needed some tuning because it was connected to Bluetooth by default. Thinking of it , we do use some of the pins connected to the Hat with Arduino to reset/program the hat. But that is o...
by Bertus Kruger
Thu Feb 25, 2021 6:53 pm
Forum: Current Version(2.60)
Topic: Another rebuild
Replies: 13
Views: 11166

Re: Another rebuild

OK Bertus, Of course I would like to stay with your system, if you are planning an update, and of course it is not to far away, I will not be in any hurry to get this up and running, I need to make sure that everything is spot on. I did have the two motors running the Z axis on the last model, didn...
by Bertus Kruger
Thu Feb 25, 2021 6:47 pm
Forum: Current Version(2.60)
Topic: Voltage for Pololu DRV8825
Replies: 2
Views: 3364

Re: Voltage for Pololu DRV8825

In the wiki the voltage for the motor controllers listed as 12-36v. The DRV8825 controller can handle 48v is this a limitation of the 2.60 board? Can 48v be run through it safely? Thanks! We tested the V2.60 at 36v. For compatibility we labeled it at 36V for other pololu stepper drivers that don't ...
by Bertus Kruger
Mon Feb 22, 2021 7:00 pm
Forum: Current Version(2.60)
Topic: Another rebuild
Replies: 13
Views: 11166

Re: Another rebuild

OK Bertus, you answered a couple of questions on the V 2.58 page. I mentioned that the new machine would be 1 meter X 900. For ease of construction, the X axis rises and lowers with the Z axis, so this is an added weight, so I have a motor on each side, they are run on individual drivers, so Z is c...
by Bertus Kruger
Mon Feb 22, 2021 6:53 pm
Forum: Version 2.58
Topic: Another rebuild
Replies: 4
Views: 3794

Re: Another rebuild

Thanks Bertus, but this was put here by mistake it was meant for v2.60, but it seems to have been removed from there, there were far more questions needing answers there. I already have the v 2.60 with external drivers. It seems a poor show removing the correct message. I was juts about to move thi...
by Bertus Kruger
Mon Feb 22, 2021 6:47 pm
Forum: Old CNC Shield V3.00 and Chines copies of it...
Topic: LASER FOR ENVRAVING
Replies: 1
Views: 3045

Re: LASER FOR ENVRAVING

I am running a nano board on a Chinese cnc laser engraver and just bought the uno with the 4 axis v3 shield and want to change to the uno. forgive me for my lack of knowledge as I haven't done much cnc stuff for over 10 years and all the boards and my memory have changed lol I want to run a 2w lase...
by Bertus Kruger
Mon Feb 22, 2021 6:41 pm
Forum: Current Version(3.51)
Topic: Limit switch wiring
Replies: 1
Views: 2705

Re: Limit switch wiring

All GND pins are shared on the CNC Shield , so you only need one connected.

The CNC shield has builtin pull up resistors that will pull the line high at all time...
When the endstop gets shorted it will pull the pin to GND and GRBL will stop.