CNC Circuit Mill/Manufacturing Instructions

From Open Source Ecology
Jump to navigation Jump to search

1 Preparation


  • Edit

https://docs.google.com/spreadsheet/ccc?key=0AlpsBarfpPkzdFk5aDY3dHM0eEhfZHNkWVppdV9EelE

1 Process

  • Cut Angle 0.125" x 1.5" x 1.5"

To 14 pieces of 360mm length

To 10 pieces of 160mm length

To 1 piece of 60mm length

  • Cut Square Tube 0.125" x 1.5" x 1.5"

To 1 piece of 200mm length

  • Cut Flat Bar 0.125" x 6" x X
  • Drill Angle Template

60mm long, 0.125" x 1.5" x 1.5" steel angle.

Use pilot bit. Differentiate the 2 holes as A and B. When looking at the angle's inner perspective, hole A should be up and to the left of hole B.

ANGLE HOLE A - Mark and drill hole A on one angle side, 20mm from the inner joining edge of angle, close to the end of the angle.

ANGLE HOLE B - Mark and drill hole B on the other angle side, 20 from the inner joining edge of angle, 40mm apart (distance is angle-parallel) from hole A.

  • Tube Template

0.125" x 1.5" x 1.5" x 180mm steel tube.

All holes drilled with only pilot bit. Keep angle template usage consistent by keeping its 2 tube contact faces the same for all holes for a given surface. Ensure tube is on flat surface. Ensure tube template usage consistency.

TEMPLATE REFERENCE HOLE Use angle template hole A to drill reference hole near end of tube.

TEMPLATE MOTOR HOLE Mark and drill 8mm tube-parallel from reference hole.

TEMPLATE STEPPER HOLES Mark 15.5mm tube-parallel from reference hole then drill 2 holes each 15.5mm tube-perpendicular from mark.

TEMPLATE SHAFT HOLE Mark 70mm tube-parallel from reference hole then drill 1 hole at mark using angle template hole A.

TEMPLATE FRAME HOLE Mark 170mm tube-parallel from reference hole then drill 1 hole at mark using angle template hole A.

TEMPLATE ANGLE HOLE Drill 1 hole using angle template hole B while hole A is set to the template shaft hole with rod.

  • X Angles (aka the steel angle pieces that go horizontally from side to side of the circuit mill)

0.125" x 1.5" x 1.5" x 360mm steel angle (4)

Drill reference, frame, and frame angle holes in all.

Drill shaft holes in 2.

Drill stepper holes in 1.

0.125" x 1.5" x 1.5" x 160mm steel angle (7)

Drill reference, shaft, and shaft angle holes in all.

Drill stepper holes in 1.

Drill motor holes in 1.

  • Y Angles (aka the steel angle pieces that go horizontally front to back of the circuit mill)

0.125" x 1.5" x 1.5" x 360mm steel angle (4)

Drill reference, frame, and frame angle holes in all.

  • Z Angles (aka the steel angle pieces that are oriented vertically upwards)

0.125" x 1.5" x 1.5" x 360mm steel angle (6)

Drill reference and frame holes in all.

Drill frame angle holes in 4.

Drill shaft holes in 2.

Drill stepper holes in 1 as if the upper shaft hole was the reference hole.

Drill new shaft holes in 2 as if the upper shaft hole was the reference hole.

  • Sleeve Bearing (reduces friction between the pair of support shafts and the moving platform for each axis)

Drill the 12 sleeve bearings through the XYZ setup to achieve alignment.

  • Leadscrew Nut (converts rotary motion of the leadscrew into linear motion where the nut travels along the axis of the leadscrew)

Drill the 3 leadscrew nuts through the XYZ setup to achieve alignment.

  • Plates (used to increase the rigidity of the pair of moving angles in each axis setup)

Drill the 3 plates through the XYZ axes setup to achieve alignment.

  • Edit Processing Folder (copy/paste "Arduino1.0/lib/RXTcomm.jar" into "Processing/lib")
  • Edit GRBL Folder (edit "MakeFile" such that the serial port name "...tty.usb*" is replaced with the correct name corresponding to your computer OS)
  • In terminal, go to the grbl directory using the "cd" command then type

make clean

make

make flash

where "make flash" requires the arduino uno to be connected to the computer via usb port. In order for "make" to work, you must install the "ruby" programming language (remember to reboot after ruby installation).

  • Edit the gctrl code to establish a fixed serial port for communication in the code rather than choosing from the gctrl GUI.
  • Run gctrl code as a processing sketch. For any function of gctrl, press and hold down the key for the popup windows to populate.

2 Software Summary

3 Get Git 3 Get rxtx 2.1-7 binary files 3 Get ruby programming language 3 Get grbl make files 3 Get gctrl 3 Get Processing

3 Copy the rxtx .jar and .so files from the 2.1-7 directory into the processing directory 3 Change gctrl code to have fixed port recognition 3 Make clean, make (compiled by this point), and make flash (firmware uploaded by this point) the grbl files into the arduino uno

3 Open Processing>gctrl>run 3

2 Detailed Software Guide

3 Ubuntu 10.04 LTS 32-Bit

4 Getting Git

  • Open Terminal and type:

sudo apt-get install git-core

4 Getting RXTX 2.1-7 Binary Package

  • Go to this webpage:

http://rxtx.qbang.org/wiki/index.php/Download

  • Download the RXTX 2.1-7r2 (stable) Binary Package
  • Extract the downloaded zip file to a directory of your choosing

4 Getting RUBY Programming Language

  • Open Terminal and type:

sudo apt-get install ruby1.9.1

  • Restart the computer for the changes to take place

4 Getting GRBL Files

  • Open Terminal and type:

git clone https://github.com/damellis/grbl.git grbl

4 Getting Gctrl

  • Open Terminal and type:

git clone https://github.com/damellis/gctrl.git gctrl

4 Getting Processing

  • Go to this webpage:

http://processing.org/download/

  • Download the latest version of Processing to a directory of your choosing

4 Moving RXTX files

  • Navigate to the rxtx-2.1-7r2 folder.
  • Copy RXTXcomm.jar
  • Navigate to the Processing folder>modes>java>libraries>serial>library
  • Paste RXTXcomm.jar, replacing the existing version
  • Navigate to the rxtx-2.1-7r2 folder>Linux>i686-unknown-linux-gnu
  • Copy librxtxSerial.so
  • Navigate to the Processing folder>modes>java>libraries>serial>library>Linux32
  • Paste librxtxSerial.so, replacing the existing version

4 Modifying Gctrl

  • Open the Gctrl folder
  • Open gctrl.pde in gedit
  • Change a part of the code as annotated in the following:

Serial port = null; //change starts

String portname = "/dev/ttyACM0"; // Linux, Arduino Uno

//change ends

boolean streaming = false;

4 Modifying GRBL Files

  • Navigate to the GRBL folder
  • Open "Makefile" in gedit
  • Edit the PROGRAMMER line as:

PROGRAMMER = -c stk500v1 -P /dev/ttyACM0 -b 115200

4 Flashing GRBL

  • Open Terminal and navigate to the GRBL folder (ex. by using the "ls" and "cd" commands)
  • In Terminal, type:

make clean

make

  • Connect the Arduino Uno to the computer via USB cable
  • In Terminal, type:

make flash

  • Disconnect the Arduino Uno

4 Running GRBL

  • Navigate to the Processing folder
  • Open and run Processing, setting the sketchbook folder as the folder in which the gctrl folder exists
  • In Processing, open gctrl using File>Sketchbook>
  • Connect the Arduino Uno to the computer via USB cable
  • In Processing, run gctrl using Sketch>Run
Retrieved from "https://wiki.opensourceecology.org/index.php?title=CNC_Circuit_Mill/Manufacturing_Instructions&oldid=51484"