Difference between revisions of "Mini CNC"

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=its broke, needs a ramps+mega combo=




original body came from a MYDIYCNC that was left on a beach.
http://i.imgur.com/8EjnffL.jpg
ilan made the hardware work. now we try the software side.
 
original body came from a MYDIYCNC that was left on a beach.<br>
now try the software side.
 
==TODO==
*<s>z stepper motor is broken -  nema17 replacement need to install.</s>
* connect the dremel to the RAMPS board
* limit switch
* z-probe - [http://www.repetier.com/documentation/repetier-firmware/z-probing/ repetier z-probing]
 
==software==
there are usually several programs in the process.
* create the artwork (inkscape for 2D, XXX for 3D)
* generate the toolpath/gcode (pycam, ....)
* cnc controller, to send the gcode
 
 
===cnc controller===
 
got it working with [http://zapmaker.org/projects/grbl-controller-3-0/ grbl controller] on windows
====universal gcode sender====
using the 1.0.8 release , its java based so works anywhere. tested on arch/linux
 
link https://github.com/winder/Universal-G-Code-Sender
screenshot https://imgur.com/6BYzooS
 
LTDR
  wget  https://github.com/winder/builds/blob/master/UniversalGCodeSender/UniversalGcodeSender-v1.0.8.zip
  unzip UniversalGcodeSender-v1.0.8.zip
  cat README.txt
  java -jar -Xmx256m UniversalGcodeSender.jar
 
====command line ====
https://github.com/grbl/grbl/wiki/Using-Grbl
 
 
and a list of other grbl controllers - http://www.shapeoko.com/wiki/index.php/Communication_/_Control


==firmware==
==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===
===repetier host===
comes witha configure tool and support for ramps/ATMEGA2560<br>
<b>on hold</b>
did a test with the jog and it works. <br>
[http://www.repetier.com/ Repertier-Host] ([https://github.com/repetier/Repetier-Host git]) is used for firmware and optionally for controlling software. Version 0.9 (current on fedora [http://pkgs.fedoraproject.org/cgit/RepetierHost.git/ 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):
all data can be found on glassroom pc at d:/cnc<br>
 
including used firmware<br><br>
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))


===gbrl===
one of the popular firmware for controlling stepper drivers and parsing G-CODE
* compile and upload -https://github.com/grbl/grbl/wiki/Compiling-Grbl
*connecting to an MCU - https://github.com/grbl/grbl/wiki/Connecting-Grbl


* machine manual, good mostly for historical, mechanical design<br>
firmware "configuration.h" file [http://pastebin.com/raw.php?i=gggdtKE3 pastebin] as of 2014-10-25 <br>
[https://wiki.hackmanhattan.com/images/4/42/MyDIYCNC_Comprehensive_Plans_and_Manual_eBook_1-4.pdf MyDIYCNC_Comprehensive_Plans_and_Manual_eBook_1-4.pdf]
enabled support for z-probing,the settings are at ball park esp.<br>


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


stepper wiring<br>
A1 - black <br>
A2 - green<br>
B1 - red<br>
B2 - blue<br>
<br><br>
<br><br>




* others on the web
 
http://reprap.org/wiki/PCB_Milling
==hardware==
https://github.com/pknoe3lh/cncgcodecontroller
* PSU pinout http://www.rom.by/files/DPS-800GB-A_0.png
 
==manual==
* machine manual, good mostly for historical, mechanical design<br>
[https://wiki.hackmanhattan.com/images/4/42/MyDIYCNC_Comprehensive_Plans_and_Manual_eBook_1-4.pdf MyDIYCNC_Comprehensive_Plans_and_Manual_eBook_1-4.pdf]
 
==links==
 
===generating models and gcode===
{{#ev:youtube|107FGoYX1bg}}
* [https://inkscape.org/en/ inkscape]-> [http://www.makercam.com/ makercam] -> <s>GRBL</s> RepetierHost  -> arduino+RAMPS
* nica [http://reprap.org/wiki/PCB_Milling
https://github.com/pknoe3lh/cncgcodecontroller tutorial] for makercam

Latest revision as of 12:30, 27 November 2015

its broke, needs a ramps+mega combo

8EjnffL.jpg

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

there are usually several programs in the process.

  • create the artwork (inkscape for 2D, XXX for 3D)
  • generate the toolpath/gcode (pycam, ....)
  • cnc controller, to send the gcode


cnc controller

got it working with grbl controller on windows

universal gcode sender

using the 1.0.8 release , its java based so works anywhere. tested on arch/linux

link https://github.com/winder/Universal-G-Code-Sender screenshot https://imgur.com/6BYzooS

LTDR

 wget  https://github.com/winder/builds/blob/master/UniversalGCodeSender/UniversalGcodeSender-v1.0.8.zip
 unzip UniversalGcodeSender-v1.0.8.zip
 cat README.txt
 java -jar -Xmx256m UniversalGcodeSender.jar 

command line

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


and a list of other grbl controllers - http://www.shapeoko.com/wiki/index.php/Communication_/_Control

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




hardware

  • PSU pinout DPS-800GB-A_0.png

manual

  • machine manual, good mostly for historical, mechanical design

MyDIYCNC_Comprehensive_Plans_and_Manual_eBook_1-4.pdf

links

generating models and gcode

https://github.com/pknoe3lh/cncgcodecontroller tutorial] for makercam