skeinforge_application.skeinforge_plugins.craft_plugins.chamber ($Date: 2008/21/04 $) | index /home/enrique/Desktop/backup/babbleold/script/reprap/fabmetheus/skeinforge_application/skeinforge_plugins/craft_plugins/chamber.py

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`
Some filaments contract too much and warp the extruded object. To prevent this you have to print the object in a temperature regulated chamber and/or on a temperature regulated bed. The chamber tool allows you to control the bed and chamber temperature and the holding pressure.
The chamber gcodes are also described at:
http://reprap.org/wiki/Mendel_User_Manual:_RepRapGCodes
The chamber manual page is at:
http://fabmetheus.crsndoo.com/wiki/index.php/Skeinforge_Chamber
Operation
Settings
Bed Temperature
Chamber Temperature
Holding Force
Heated Beds
Bothacker
Domingo
Jmil
Kulitorum
Metalab
Nophead
Prusajr
Pumpernickel2
Zaggo
Examples
`

## Operation

The default 'Activate Chamber' checkbox is on. When it is on, the functions described below will work, when it is off, the functions will not be called.

## Settings

### Bed Temperature

Default is 60C.
Defines the print_bed temperature in Celcius by adding an M140 command.

### Chamber Temperature

Default is 30C.
Defines the chamber temperature in Celcius by adding an M141 command.

### Holding Force

Default is zero.
Defines the holding pressure of a mechanism, like a vacuum table or electromagnet, to hold the bed surface or object, by adding an M142 command. The holding pressure is in bars. For hardware which only has on/off holding, when the holding pressure is zero, turn off holding, when the holding pressure is greater than zero, turn on holding.

## Heated Beds

### Bothacker

A resistor heated aluminum plate by Bothacker:
http://bothacker.com
with an article at:
http://bothacker.com/2009/12/18/heated-build-platform/

### Domingo

A heated copper build plate by Domingo:
http://casainho-emcrepstrap.blogspot.com/
with articles at:
http://casainho-emcrepstrap.blogspot.com/2010/01/first-time-with-pla-testing-it-also-on.html
http://casainho-emcrepstrap.blogspot.com/2010/01/call-for-helpideas-to-develop-heated.html
http://casainho-emcrepstrap.blogspot.com/2010/01/new-heated-build-platform.html
http://casainho-emcrepstrap.blogspot.com/2010/01/no-acrylic-and-instead-kapton-tape-on.html
http://casainho-emcrepstrap.blogspot.com/2010/01/problems-with-heated-build-platform-and.html
http://casainho-emcrepstrap.blogspot.com/2010/01/perfect-build-platform.html
http://casainho-emcrepstrap.blogspot.com/2009/12/almost-no-warp.html
http://casainho-emcrepstrap.blogspot.com/2009/12/heated-base-plate.html

### Jmil

A heated build stage by jmil, over at:
http://www.hive76.org
with articles at:
http://www.hive76.org/handling-hot-build-surfaces
http://www.hive76.org/heated-build-stage-success

### Kulitorum

Kulitorum has made a heated bed. It is a 5mm Alu sheet with a pattern laid out in kapton tape. The wire is a 0.6mm2 Konstantin wire and it's held in place by small pieces of kapton tape. The description and picture is at:
http://gallery.kulitorum.com/main.php?g2_itemId=283

### Metalab

A heated base by the Metalab folks:
http://reprap.soup.io
with information at:
http://reprap.soup.io/?search=heated%20base

### Nophead

A resistor heated aluminum bed by Nophead:
http://hydraraptor.blogspot.com
with articles at:
http://hydraraptor.blogspot.com/2010/01/will-it-stick.html
http://hydraraptor.blogspot.com/2010/01/hot-metal-and-serendipity.html
http://hydraraptor.blogspot.com/2010/01/new-year-new-plastic.html
http://hydraraptor.blogspot.com/2010/01/hot-bed.html

### Prusajr

A resistive wire heated plexiglass plate by prusajr:
http://prusadjs.cz/
with articles at:
http://prusadjs.cz/2010/01/heated-reprap-print-bed-mk2/
http://prusadjs.cz/2009/11/look-ma-no-warping-heated-reprap-print-bed/

### Pumpernickel2

A resistor heated aluminum plate by Pumpernickel2:
http://dev.forums.reprap.org/profile.php?14,844
with a picture at:
http://dev.forums.reprap.org/file.php?14,file=1228,filename=heatedplate.jpg

### Zaggo

A resistor heated aluminum plate by Zaggo at Pleasant Software:
http://pleasantsoftware.com/developer/3d/
with articles at:
http://pleasantsoftware.com/developer/3d/2009/12/05/raftless/
http://pleasantsoftware.com/developer/3d/2009/11/15/living-in-times-of-warp-free-printing/
http://pleasantsoftware.com/developer/3d/2009/11/12/canned-heat/

## Examples

The following examples chamber the file Screw Holder Bottom.stl. The examples are run in a terminal in the folder which contains Screw Holder Bottom.stl and chamber.py.
> python chamber.py
This brings up the chamber dialog.
> python chamber.py Screw Holder Bottom.stl
The chamber tool is parsing the file:
Screw Holder Bottom.stl
..
The chamber tool has created the file:
Screw Holder Bottom_chamber.gcode

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Modules
`` |  |
__init__ fabmetheus_utilities.archive fabmetheus_utilities.euclidean | fabmetheus_utilities.fabmetheus_tools.fabmetheus_interpret fabmetheus_utilities.gcodec fabmetheus_utilities.settings | skeinforge_application.skeinforge_utilities.skeinforge_craft skeinforge_application.skeinforge_utilities.skeinforge_polyfile skeinforge_application.skeinforge_utilities.skeinforge_profile | sys

Classes
`` |  | ChamberRepository ChamberSkein
class ChamberRepository
`` | `A class to handle the chamber settings.`
| Methods defined here: __init__(self) `Set the default settings, execute title & settings fileName.` execute(self) `Chamber button has been clicked.`
class ChamberSkein
`` | `A class to chamber a skein of extrusions.`
| Methods defined here: __init__(self) getCraftedGcode(self, gcodeText, repository) `Parse gcode text and store the chamber gcode.` parseInitialization(self) `Parse gcode initialization and store the parameters.` parseLine(self, line) `Parse a gcode line and add it to the chamber skein.`

Functions
`` |  | getCraftedText(fileName, text='', repository=None) `Chamber the file or text.` getCraftedTextFromText(gcodeText, repository=None) `Chamber a gcode linear move text.` getNewRepository() `Get new repository.` main() `Display the chamber dialog.` writeOutput(fileName, shouldAnalyze=True) `Chamber a gcode linear move file.`

Data
`` |  | __author__ = 'Enrique Perez (perez_enrique@yahoo.com)' __date__ = '$Date: 2008/21/04 $' __license__ = 'GNU Affero General Public License http://www.gnu.org/licenses/agpl.html' absolute_import = _Feature((2, 5, 0, 'alpha', 1), (2, 7, 0, 'alpha', 0), 16384)

Author
`` |  | Enrique Perez (perez_enrique@yahoo.com)