Search found 1336 matches

by Bertus Kruger
Sun Feb 10, 2019 6:38 pm
Forum: Current Version(2.60)
Topic: All I/O pins on the board. And descriptions..?
Replies: 4
Views: 89

Re: All I/O pins on the board. And descriptions..?

If a POLOLU board is being used then the pinouts for the motor connectors changes to a+ a- b+ b- I do knot the exact connection as I have not found that info. if anyone knows and or could post a photo sowing it that would be great. https://wiki.protoneer.co.nz/images/thumb/6/6c/RPI-CNC-260-StepperC...
by Bertus Kruger
Sun Feb 10, 2019 6:35 pm
Forum: Current Version(2.60)
Topic: All I/O pins on the board. And descriptions..?
Replies: 4
Views: 89

Re: All I/O pins on the board. And descriptions..?

berin wrote:
Sun Feb 10, 2019 12:42 am
Unknown headers?:
On the board there are 3 headers A4 A6 AND A7. What are these pins for?
Those are pin GRBL don't use. A6 and A7 are available on Arduino Nano boards but not on Arduino Uno boards.
by Bertus Kruger
Sun Feb 10, 2019 6:32 pm
Forum: Current Version(2.60)
Topic: No connection
Replies: 4
Views: 58

Re: No connection

https://wiki.protoneer.co.nz/Raspberry_Pi_CNC_User_Interface_SD_Card_Image To setup a RPi 3's, run the "RPi3 Serial Config" shortcut on the desktop it will configure the hardware serial port and is only needed for on a RPi 3's. It only needs to be run once and will automatically reboot the Pi. RPI ...
by Bertus Kruger
Sun Feb 10, 2019 6:29 pm
Forum: Current Version(2.60)
Topic: Homing switches
Replies: 1
Views: 39

Re: Homing switches

Dlmiller2005 wrote:
Sat Feb 09, 2019 12:43 am
Can the homing switches be changed to normally closed instead of normally open?
Yes... But the GRBL software uses normally closed by default and has been fully tested with it.
by Bertus Kruger
Sun Feb 10, 2019 6:27 pm
Forum: Current Version(2.60)
Topic: GRBL
Replies: 3
Views: 49

Re: GRBL

GRBL V1.1

Board: Arduino Uno
port : /dev/ttyAMA0
by Bertus Kruger
Sun Feb 10, 2019 6:25 pm
Forum: Old CNC Shield V3.00 and Chines copies of it...
Topic: Auto Square
Replies: 2
Views: 42

Re: Auto Square

The Y end stops on the board have two sets of end stop connectors per axis. Just use the second one...

Image
by Bertus Kruger
Sun Feb 10, 2019 6:22 pm
Forum: Current Version(2.60)
Topic: Problem flashing hex with avrdude
Replies: 2
Views: 24

Re: Problem flashing hex with avrdude

Another note: In the autreset file it uses pin 11 - looking at the rpi pinout that is not on the header. Pin 11 (i.e. gpio 11) is actually physical pin 23. I feel this should be changed to GPIO17 (or GPIO4)- but i cant find schematic of the CNC hat so don't know?! Please advise. With Python RPI.GPI...
by Bertus Kruger
Sun Feb 10, 2019 6:19 pm
Forum: Current Version(2.60)
Topic: Problem flashing hex with avrdude
Replies: 2
Views: 24

Re: Problem flashing hex with avrdude

Have a look at this script:

https://github.com/Protoneer/RPI-CNC-Co ... -Latest.sh

Its and example of uploading firmware.
by Bertus Kruger
Sun Feb 03, 2019 6:36 pm
Forum: Current Version(2.60)
Topic: Wiring steeper motors and reset/abort etc buttons
Replies: 9
Views: 109

Re: Wiring steeper motors and reset/abort etc buttons

shane_p wrote:
Sun Feb 03, 2019 1:39 am
Thanks Bertus Kruger, just went back and looked on the wiki and there it was - I'll have to look with my eyes opened next time :oops:
No worries... there are lots of things to think of when building these machines. ;)
by Bertus Kruger
Wed Jan 30, 2019 6:45 pm
Forum: Current Version(2.60)
Topic: Let the smoke out :( What did I do wrong?
Replies: 6
Views: 141

Re: Let the smoke out :( What did I do wrong?

The board's mirco is connected to the Pi via Serial pins and powered by the 5V rail on the PI.

Only way is if the motor supply was shorted to the 5V supply.