Difference between revisions of "Mini CNC"

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(grbl update)
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==software==
 
==software==
  
 +
got it working with [http://zapmaker.org/projects/grbl-controller-3-0/ grbl controller] on windows, now we want to move to linux/arch...
  
 +
connecting to the serial port i get input
 +
  Grbl 0.9g ['$' for help]
 +
 +
* using grbl from command line
 +
https://github.com/grbl/grbl/wiki/Using-Grbl
 +
 +
* list of grbl controllers - http://www.shapeoko.com/wiki/index.php/Communication_/_Control
  
 
==firmware==
 
==firmware==
Line 20: Line 28:
 
noam installed gbrl for ramps - http://sourceforge.net/projects/grblforramps14/
 
noam installed gbrl for ramps - http://sourceforge.net/projects/grblforramps14/
  
got it working with grbl controller on windows, now we want to move to linux/arch...
 
 
connecting to the serial port i get input
 
  Grbl 0.9g ['$' for help]
 
  
* using grbl from command line
 
https://github.com/grbl/grbl/wiki/Using-Grbl
 
 
* list of grbl controllers - http://www.shapeoko.com/wiki/index.php/Communication_/_Control
 
  
  

Revision as of 13:04, 8 March 2015


original body came from a MYDIYCNC that was left on a beach.
now try the software side.

TODO

  • z stepper motor is broken - nema17 replacement need to install.
  • connect the dremel to the RAMPS board
  • limit switch
  • z-probe - repetier z-probing

software

got it working with grbl controller on windows, now we want to move to linux/arch...

connecting to the serial port i get input

 Grbl 0.9g ['$' for help]
  • using grbl from command line

https://github.com/grbl/grbl/wiki/Using-Grbl

firmware

gbrl

one of the popular firmware for controlling stepper drivers and parsing G-CODE

noam installed gbrl for ramps - http://sourceforge.net/projects/grblforramps14/



repetier host

on hold Repertier-Host (git) is used for firmware and optionally for controlling software. Version 0.9 (current on fedora 21) isn't good enough. But [pronsole (printrun) works fine, so does this python snippet: (using pyserial only, and very basic gcode gleened from pronsole source):

import serial
s = serial.Serial('
$ cat rectral.py 
import serial

s = serial.Serial(port='/dev/ttyACM0', baudrate=250000)
d = [('X', 1), ('Y', 1), ('X', -1), ('Y', -1)]
l = [100, 200, 300, 400, 500, 600, 700, 800, 1000, 1100]

for le in l:
    for axis, direc in d:
        s.write('G%s%s F3000\n' % (axis, direc * le))


firmware "configuration.h" file pastebin as of 2014-10-25
enabled support for z-probing,the settings are at ball park esp.

// distance/difference between activated probe and nuzzle height
#define Z_PROBE_HEIGHT 40




manual

  • machine manual, good mostly for historical, mechanical design

MyDIYCNC_Comprehensive_Plans_and_Manual_eBook_1-4.pdf


links

http://reprap.org/wiki/PCB_Milling https://github.com/pknoe3lh/cncgcodecontroller

generating models and gcode