Go Down

Topic: How do I use an Arduino with a grblshield for a CNC machine? (Read 8 times) previous topic - next topic

kf2qd


Have you studied the grblShield wiki?

https://www.synthetos.com/wiki/index.php?title=Projects:grblShield

It looks like grbl takes over the ATmega processor in your Arduino UNO and doesn't use the Arduino bootloader so it can't be uploaded as a sketch.  You will need AVR Studio 4 and a ISP programmer to load the grbl .hex file into your ATmega328P.


You won't need AVR Studio as all you already have access to the .HEX file. You will need another ATMega328P chip and to learn how to use the ArduinoISP sketch and program the new chip. You can then plug it into your Arduino Board  (provided you have the DIP type Arduino board) and then you can run grbl CNC.

peterrichardjames

Also how should I wire my nema23 motors into the grbl shield. I'm sure it is not as simple as just connecting them to the shield and slotting the shield onto the arduino. How should I wire up an extra power supply and resistors?

magagna

Quote
Also how should I wire my nema23 motors into the grbl shield. I'm sure it is not as simple as just connecting them to the shield and slotting the shield onto the arduino. How should I wire up an extra power supply and resistors?


https://www.synthetos.com/wiki/index.php?title=Using_the_grblShield
http://en.wiktionary.org/wiki/magagna <-- My last name.  Pretty apt.

KD7BBJ

I know how you feel!  I'm in the same position.  I have all the parts to make a cnc machine and every time I ask for help all I get is a link to someplace that doesnt help

KD7BBJ

I need help interfacing my windows XP machine with th grbl shield and an UNOr3 with a grbl Chip.  I have all the parts to go but I dont know how to setup my computer.  Yes I have read all the grbl and wiki sheets and they dont help. 

I would like someone to say "plug this here, type this here, do this and that" so I can get this going.

thanks

Go Up