Search found 1606 matches

by Bertus Kruger
Mon Apr 06, 2020 11:40 pm
Forum: Current Version(2.60)
Topic: Minimal Raspberry Pi 4 setup with Candle and firmware 1.1h
Replies: 4
Views: 136

Re: Minimal Raspberry Pi 4 setup with Candle and firmware 1.1h

I had a look at this...

Problem is there is no pre-build so this increases the image size by over 600mb just to build.

For now I am not going to add it till we have a better way to script the install.
by Bertus Kruger
Mon Apr 06, 2020 4:23 am
Forum: Current Version(3.51)
Topic: how can I power bigger stepper motors?
Replies: 3
Views: 14

Re: how can I power bigger stepper motors?

I think thats what the pins below the reset button are for, so you can use external stepper drivers and power them seperately from a stronger supply. Step and direction signal go from the Arduino, through the shield board to them pins and then to the new external drivers. That's it!!! Those Step an...
by Bertus Kruger
Mon Apr 06, 2020 4:21 am
Forum: Current Version(2.60)
Topic: A small problem
Replies: 2
Views: 26

Re: A small problem

When I cut holes, they do not turn out to be perfectly round, not sure why because vertical and horizontal cut are good, maybe its a slight binding on either the X or Y axis. I have noticed a slight flexing on the X axis, no sure if this could be the answer, just in case I have ordered two 16mm rai...
by Bertus Kruger
Mon Apr 06, 2020 4:19 am
Forum: Current Version(3.51)
Topic: New shield.
Replies: 2
Views: 27

Re: New shield.

Just got a new 3.51 board from Elecrow. Checked it over and its perfect, really good quality. Been using an old version 3 for ages, time to upgrade. I use Normally Closed limit switches just for homing and just left the High/Low jumper on Low. Set to 16 microstepping. Genuine Arduino UNO with GRBL ...
by Bertus Kruger
Mon Apr 06, 2020 4:14 am
Forum: Current Version(2.60)
Topic: GPIO pins used
Replies: 3
Views: 56

Re: GPIO pins used

First 12 pins are connected to the Pi: GND - 2 pins joined 5V - 2 pins joined 3V - used for level shifters RX TX GPIO17 - Reset pin Perfect! Thanks! I will post here the results after my tests with RS485 between raspberry pi and the HAT Please do... It would be a great way to extend the board.
by Bertus Kruger
Mon Apr 06, 2020 4:14 am
Forum: Current Version(2.60)
Topic: Minimal Raspberry Pi 4 setup with Candle and firmware 1.1h
Replies: 4
Views: 136

Re: Minimal Raspberry Pi 4 setup with Candle and firmware 1.1h

Thanks, I was struggling to get a Pi 4 setup with Raspian Buster image. This made it very easy. I installed Universal Gcode Sender for a laser application. It seems to work. I will also set up bCNC for the same application. Are there any better applications out there that are applicable for laser o...
by Bertus Kruger
Mon Apr 06, 2020 4:12 am
Forum: Raspberry Pi CNC Board - Raspbian Image
Topic: Can't expand filesystem
Replies: 5
Views: 138

Re: Can't expand filesystem

I had to resize the partition to make it easier to download.

I will have to redo the image again. We are under locka down with the COVID-19 virus so I have a little time to work on this.
by Bertus Kruger
Mon Apr 06, 2020 4:07 am
Forum: Current Version(3.51)
Topic: F3N Endstops
Replies: 1
Views: 10

Re: F3N Endstops

Hi all, to make things awkward I have to interface with F3N-18TN05-N proximity switches as endstops on my machine. IMG_5282.jpeg These are NPN NO transistor operated electronic switches. Any idea how I use these with the CNC shield? I can build intermediary circuitry if necessary. Regards, Chris Th...
by Bertus Kruger
Mon Apr 06, 2020 4:03 am
Forum: Current Version(3.51)
Topic: CNC Shield with No GRBL
Replies: 1
Views: 8

Re: CNC Shield with No GRBL

I'm a noob trying to get enough info together to make my idea come to life. I don't need GRBL, but I do have the CNC shield with DRV8825 drivers on my Uno. I'll be repurposing an Acro CNC kit to do what I want, which is with the push of a button (or two) or a switch, make it move to a limit switch,...
by Bertus Kruger
Mon Apr 06, 2020 3:56 am
Forum: Current Version(2.60)
Topic: Z-Axis backwards
Replies: 2
Views: 6

Re: Z-Axis backwards

Micro stepping is another cool subject but for another question... :D