Open Source Ecology - User contributions [en]

Eric Potash Log

2014-03-20T20:18:29Z

Saucerful: /* Thu Mar 20, 2014 */

=Thu Mar 20, 2014=
[http://sketchucation.com/forums/viewtopic.php?f=323&t=22920&start=840#p516505 Bugged] SketchUp CleanUp extension author to get it working under wine. Exported SCAD warehouse [[File:SCADWarehouse.skp]].

=Wed Mar 19, 2014=
Modeled axles and [[stock pivot plate]] in scad. Collected the parts into a [[warehouse]]:

[[File:Scad_warehouse.png|x200px]]

=Tue Mar 18, 2014=
Installed SketchUp with wine. Issues with Cleanup; contacted author.

Modeled basic plates in scad.

[[File:Plates.png|x200px]]

=Thu Mar 12, 2014=
Adapted rotor shaft to coupler (keyway and setscrews). Adjusted spacing of tine modules to put 3" between neighboring tine ends and 3½" to bucket sides. Adjusted length of shaft to accomodate coupler, bearings and collar. See [[File: Rotor.scad]].

Exported [[File:Rotor.stl]] including integration with Michael's SketchUp assembly:

[[File:SoilPulverizer.PNG|x300px]]

Added notes to [[OpenSCAD#Import scaling]].

=Wed Mar 12, 2014=
Minor changes to tine_module in [[File:Rotor.scad]].

[[File:Tine_module.png|x200px]]

Worked through exporting from OpenSCAD to STL (e.g. [[File:Tine_module.stl]]) and importing results in SketchUp. Documented the process in [[OpenSCAD#Collaboration]]. Continued limewashing and painting the HabLab.

=Tue Mar 11, 2014=
Modeled rotor in scad: [[File:Rotor.scad]]. Limewashed the [[HabLab]].

[[File:Rotor.png|x300px]]

=Mon Mar 10, 2014=
Worked on [https://docs.google.com/drawings/d/1hmr3cjYupyOtJ9CEqFeu8Q-M0Y5mTMVD5RpJokJlrqw/edit?usp=sharing Soil Mixer Drawing]. Mixed and applied first layer of plaster in MicroHouse. Modeled tractor interface in openscad [[File:Tractor_interace.scad]] and exported stl [[File:Tractor_interace.stl]].

[[File:Tractor_interface.png|x200px]]

=Sun Mar 9, 2014=
Brainstormed [https://docs.google.com/spreadsheet/ccc?key=0AtgqwN0RBWmKdGZZSDlOSHBGbV82SEpDM2FiZVlFMVE&usp=sharing Soil Mixer Design Requirements]. Stripped plaster in MicroHouse and put up chicken wire. Modeled the OSE grid beam in openscad [[File:Grid_beam.scad]].

Eric Potash Log

2014-03-20T20:18:17Z

Saucerful:

=Thu Mar 20, 2014=
[http://sketchucation.com/forums/viewtopic.php?f=323&t=22920&start=840#p516505 Bugged] SketchUp CleanUp extension author to get it working under wine. Exported SCAD warehouse [[File:SCADWarehouse.skp]].

[[File:Scad_warehouse.png|x200px]]

=Wed Mar 19, 2014=
Modeled axles and [[stock pivot plate]] in scad. Collected the parts into a [[warehouse]]:

[[File:Scad_warehouse.png|x200px]]

=Tue Mar 18, 2014=
Installed SketchUp with wine. Issues with Cleanup; contacted author.

Modeled basic plates in scad.

[[File:Plates.png|x200px]]

=Thu Mar 12, 2014=
Adapted rotor shaft to coupler (keyway and setscrews). Adjusted spacing of tine modules to put 3" between neighboring tine ends and 3½" to bucket sides. Adjusted length of shaft to accomodate coupler, bearings and collar. See [[File: Rotor.scad]].

Exported [[File:Rotor.stl]] including integration with Michael's SketchUp assembly:

[[File:SoilPulverizer.PNG|x300px]]

Added notes to [[OpenSCAD#Import scaling]].

=Wed Mar 12, 2014=
Minor changes to tine_module in [[File:Rotor.scad]].

[[File:Tine_module.png|x200px]]

Worked through exporting from OpenSCAD to STL (e.g. [[File:Tine_module.stl]]) and importing results in SketchUp. Documented the process in [[OpenSCAD#Collaboration]]. Continued limewashing and painting the HabLab.

=Tue Mar 11, 2014=
Modeled rotor in scad: [[File:Rotor.scad]]. Limewashed the [[HabLab]].

[[File:Rotor.png|x300px]]

=Mon Mar 10, 2014=
Worked on [https://docs.google.com/drawings/d/1hmr3cjYupyOtJ9CEqFeu8Q-M0Y5mTMVD5RpJokJlrqw/edit?usp=sharing Soil Mixer Drawing]. Mixed and applied first layer of plaster in MicroHouse. Modeled tractor interface in openscad [[File:Tractor_interace.scad]] and exported stl [[File:Tractor_interace.stl]].

[[File:Tractor_interface.png|x200px]]

=Sun Mar 9, 2014=
Brainstormed [https://docs.google.com/spreadsheet/ccc?key=0AtgqwN0RBWmKdGZZSDlOSHBGbV82SEpDM2FiZVlFMVE&usp=sharing Soil Mixer Design Requirements]. Stripped plaster in MicroHouse and put up chicken wire. Modeled the OSE grid beam in openscad [[File:Grid_beam.scad]].

File:SCADWarehouse.skp

2014-03-20T20:15:38Z

Saucerful:

File:Warehouse.skp

2014-03-20T20:14:45Z

Saucerful: Saucerful uploaded a new version of "File:Warehouse.skp": Reverted to version as of 15:07, 11 October 2013

File:Warehouse.skp

2014-03-20T20:14:25Z

Saucerful: Saucerful uploaded a new version of "File:Warehouse.skp"

Eric Potash Log

2014-03-20T03:04:37Z

Saucerful:

=Wed Mar 19, 2014=
Modeled axles and [[stock pivot plate]] in scad. Collected the parts into a [[warehouse]]:

[[File:Scad_warehouse.png|x200px]]

=Tue Mar 18, 2014=
Installed SketchUp with wine. Issues with Cleanup; contacted author.

Modeled basic plates in scad.

[[File:Plates.png|x200px]]

=Thu Mar 12, 2014=
Adapted rotor shaft to coupler (keyway and setscrews). Adjusted spacing of tine modules to put 3" between neighboring tine ends and 3½" to bucket sides. Adjusted length of shaft to accomodate coupler, bearings and collar. See [[File: Rotor.scad]].

Exported [[File:Rotor.stl]] including integration with Michael's SketchUp assembly:

[[File:SoilPulverizer.PNG|x300px]]

Added notes to [[OpenSCAD#Import scaling]].

=Wed Mar 12, 2014=
Minor changes to tine_module in [[File:Rotor.scad]].

[[File:Tine_module.png|x200px]]

Worked through exporting from OpenSCAD to STL (e.g. [[File:Tine_module.stl]]) and importing results in SketchUp. Documented the process in [[OpenSCAD#Collaboration]]. Continued limewashing and painting the HabLab.

=Tue Mar 11, 2014=
Modeled rotor in scad: [[File:Rotor.scad]]. Limewashed the [[HabLab]].

[[File:Rotor.png|x300px]]

=Mon Mar 10, 2014=
Worked on [https://docs.google.com/drawings/d/1hmr3cjYupyOtJ9CEqFeu8Q-M0Y5mTMVD5RpJokJlrqw/edit?usp=sharing Soil Mixer Drawing]. Mixed and applied first layer of plaster in MicroHouse. Modeled tractor interface in openscad [[File:Tractor_interace.scad]] and exported stl [[File:Tractor_interace.stl]].

[[File:Tractor_interface.png|x200px]]

=Sun Mar 9, 2014=
Brainstormed [https://docs.google.com/spreadsheet/ccc?key=0AtgqwN0RBWmKdGZZSDlOSHBGbV82SEpDM2FiZVlFMVE&usp=sharing Soil Mixer Design Requirements]. Stripped plaster in MicroHouse and put up chicken wire. Modeled the OSE grid beam in openscad [[File:Grid_beam.scad]].

File:Scad warehouse.png

2014-03-20T03:02:15Z

Saucerful:

Eric Potash Log

2014-03-19T03:34:04Z

Saucerful: /* Thu Mar 12, 2014 */

=Tue Mar 18, 2014=
Installed SketchUp with wine. Issues with Cleanup; contacted author.

Modeled basic plates in scad.

[[File:Plates.png|x200px]]

=Thu Mar 12, 2014=
Adapted rotor shaft to coupler (keyway and setscrews). Adjusted spacing of tine modules to put 3" between neighboring tine ends and 3½" to bucket sides. Adjusted length of shaft to accomodate coupler, bearings and collar. See [[File: Rotor.scad]].

Exported [[File:Rotor.stl]] including integration with Michael's SketchUp assembly:

[[File:SoilPulverizer.PNG|x300px]]

Added notes to [[OpenSCAD#Import scaling]].

=Wed Mar 12, 2014=
Minor changes to tine_module in [[File:Rotor.scad]].

[[File:Tine_module.png|x200px]]

Worked through exporting from OpenSCAD to STL (e.g. [[File:Tine_module.stl]]) and importing results in SketchUp. Documented the process in [[OpenSCAD#Collaboration]]. Continued limewashing and painting the HabLab.

=Tue Mar 11, 2014=
Modeled rotor in scad: [[File:Rotor.scad]]. Limewashed the [[HabLab]].

[[File:Rotor.png|x300px]]

=Mon Mar 10, 2014=
Worked on [https://docs.google.com/drawings/d/1hmr3cjYupyOtJ9CEqFeu8Q-M0Y5mTMVD5RpJokJlrqw/edit?usp=sharing Soil Mixer Drawing]. Mixed and applied first layer of plaster in MicroHouse. Modeled tractor interface in openscad [[File:Tractor_interace.scad]] and exported stl [[File:Tractor_interace.stl]].

[[File:Tractor_interface.png|x200px]]

=Sun Mar 9, 2014=
Brainstormed [https://docs.google.com/spreadsheet/ccc?key=0AtgqwN0RBWmKdGZZSDlOSHBGbV82SEpDM2FiZVlFMVE&usp=sharing Soil Mixer Design Requirements]. Stripped plaster in MicroHouse and put up chicken wire. Modeled the OSE grid beam in openscad [[File:Grid_beam.scad]].

Eric Potash Log

2014-03-19T03:33:34Z

Saucerful:

=Thu Mar 12, 2014=
Installed SketchUp with wine. Issues with Cleanup; contacted author.

Modeled basic plates in scad.

[[File:Plates.png|x200px]]

=Thu Mar 12, 2014=
Adapted rotor shaft to coupler (keyway and setscrews). Adjusted spacing of tine modules to put 3" between neighboring tine ends and 3½" to bucket sides. Adjusted length of shaft to accomodate coupler, bearings and collar. See [[File: Rotor.scad]].

Exported [[File:Rotor.stl]] including integration with Michael's SketchUp assembly:

[[File:SoilPulverizer.PNG|x300px]]

Added notes to [[OpenSCAD#Import scaling]].

=Wed Mar 12, 2014=
Minor changes to tine_module in [[File:Rotor.scad]].

[[File:Tine_module.png|x200px]]

Worked through exporting from OpenSCAD to STL (e.g. [[File:Tine_module.stl]]) and importing results in SketchUp. Documented the process in [[OpenSCAD#Collaboration]]. Continued limewashing and painting the HabLab.

=Tue Mar 11, 2014=
Modeled rotor in scad: [[File:Rotor.scad]]. Limewashed the [[HabLab]].

[[File:Rotor.png|x300px]]

=Mon Mar 10, 2014=
Worked on [https://docs.google.com/drawings/d/1hmr3cjYupyOtJ9CEqFeu8Q-M0Y5mTMVD5RpJokJlrqw/edit?usp=sharing Soil Mixer Drawing]. Mixed and applied first layer of plaster in MicroHouse. Modeled tractor interface in openscad [[File:Tractor_interace.scad]] and exported stl [[File:Tractor_interace.stl]].

[[File:Tractor_interface.png|x200px]]

=Sun Mar 9, 2014=
Brainstormed [https://docs.google.com/spreadsheet/ccc?key=0AtgqwN0RBWmKdGZZSDlOSHBGbV82SEpDM2FiZVlFMVE&usp=sharing Soil Mixer Design Requirements]. Stripped plaster in MicroHouse and put up chicken wire. Modeled the OSE grid beam in openscad [[File:Grid_beam.scad]].

File:Plates.png

2014-03-19T03:33:13Z

Saucerful:

Eric Potash Log

2014-03-15T03:04:26Z

Saucerful: /* Thu Mar 12, 2014 */

=Thu Mar 12, 2014=
Adapted rotor shaft to coupler (keyway and setscrews). Adjusted spacing of tine modules to put 3" between neighboring tine ends and 3½" to bucket sides. Adjusted length of shaft to accomodate coupler, bearings and collar. See [[File: Rotor.scad]].

Exported [[File:Rotor.stl]] including integration with Michael's SketchUp assembly:

[[File:SoilPulverizer.PNG|x300px]]

Added notes to [[OpenSCAD#Import scaling]].

=Wed Mar 12, 2014=
Minor changes to tine_module in [[File:Rotor.scad]].

[[File:Tine_module.png|x200px]]

Worked through exporting from OpenSCAD to STL (e.g. [[File:Tine_module.stl]]) and importing results in SketchUp. Documented the process in [[OpenSCAD#Collaboration]]. Continued limewashing and painting the HabLab.

=Tue Mar 11, 2014=
Modeled rotor in scad: [[File:Rotor.scad]]. Limewashed the [[HabLab]].

[[File:Rotor.png|x300px]]

=Mon Mar 10, 2014=
Worked on [https://docs.google.com/drawings/d/1hmr3cjYupyOtJ9CEqFeu8Q-M0Y5mTMVD5RpJokJlrqw/edit?usp=sharing Soil Mixer Drawing]. Mixed and applied first layer of plaster in MicroHouse. Modeled tractor interface in openscad [[File:Tractor_interace.scad]] and exported stl [[File:Tractor_interace.stl]].

[[File:Tractor_interface.png|x200px]]

=Sun Mar 9, 2014=
Brainstormed [https://docs.google.com/spreadsheet/ccc?key=0AtgqwN0RBWmKdGZZSDlOSHBGbV82SEpDM2FiZVlFMVE&usp=sharing Soil Mixer Design Requirements]. Stripped plaster in MicroHouse and put up chicken wire. Modeled the OSE grid beam in openscad [[File:Grid_beam.scad]].

Eric Potash Log

2014-03-15T03:01:36Z

Saucerful:

=Thu Mar 12, 2014=
Adapted rotor shaft to coupler (keyway and setscrews). Adjusted spacing of tine modules to put 3" between neighboring tine ends and 3½" to bucket sides. Adjusted length of shaft to accomodate coupler, bearings and collar. See [[File: Rotor.scad]].

Exported [[File:Rotor.stl]] including to integrate with SketchUp. See [[OpenSCAD#Import scaling]].

=Wed Mar 12, 2014=
Minor changes to tine_module in [[File:Rotor.scad]].

[[File:Tine_module.png|x200px]]

Worked through exporting from OpenSCAD to STL (e.g. [[File:Tine_module.stl]]) and importing results in SketchUp. Documented the process in [[OpenSCAD#Collaboration]]. Continued limewashing and painting the HabLab.

=Tue Mar 11, 2014=
Modeled rotor in scad: [[File:Rotor.scad]]. Limewashed the [[HabLab]].

[[File:Rotor.png|x300px]]

=Mon Mar 10, 2014=
Worked on [https://docs.google.com/drawings/d/1hmr3cjYupyOtJ9CEqFeu8Q-M0Y5mTMVD5RpJokJlrqw/edit?usp=sharing Soil Mixer Drawing]. Mixed and applied first layer of plaster in MicroHouse. Modeled tractor interface in openscad [[File:Tractor_interace.scad]] and exported stl [[File:Tractor_interace.stl]].

[[File:Tractor_interface.png|x200px]]

=Sun Mar 9, 2014=
Brainstormed [https://docs.google.com/spreadsheet/ccc?key=0AtgqwN0RBWmKdGZZSDlOSHBGbV82SEpDM2FiZVlFMVE&usp=sharing Soil Mixer Design Requirements]. Stripped plaster in MicroHouse and put up chicken wire. Modeled the OSE grid beam in openscad [[File:Grid_beam.scad]].

Eric Potash Log

2014-03-15T03:00:26Z

Saucerful: /* Thu Mar 12, 2014 */

=Sun Mar 9, 2014=
Brainstormed [https://docs.google.com/spreadsheet/ccc?key=0AtgqwN0RBWmKdGZZSDlOSHBGbV82SEpDM2FiZVlFMVE&usp=sharing Soil Mixer Design Requirements]. Stripped plaster in MicroHouse and put up chicken wire. Modeled the OSE grid beam in openscad [[File:Grid_beam.scad]].

=Mon Mar 10, 2014=
Worked on [https://docs.google.com/drawings/d/1hmr3cjYupyOtJ9CEqFeu8Q-M0Y5mTMVD5RpJokJlrqw/edit?usp=sharing Soil Mixer Drawing]. Mixed and applied first layer of plaster in MicroHouse. Modeled tractor interface in openscad [[File:Tractor_interace.scad]] and exported stl [[File:Tractor_interace.stl]].

[[File:Tractor_interface.png|x200px]]
.
=Tue Mar 11, 2014=
Modeled rotor in scad: [[File:Rotor.scad]]. Limewashed the [[HabLab]].

[[File:Rotor.png|x300px]]

=Wed Mar 12, 2014=
Minor changes to tine_module in [[File:Rotor.scad]].

[[File:Tine_module.png|x200px]]

Worked through exporting from OpenSCAD to STL (e.g. [[File:Tine_module.stl]]) and importing results in SketchUp. Documented the process in [[OpenSCAD#Collaboration]]. Continued limewashing and painting the HabLab.

=Thu Mar 12, 2014=
Adapted rotor shaft to coupler (keyway and setscrews). Adjusted spacing of tine modules to put 3" between neighboring tine ends and 3½" to bucket sides. Adjusted length of shaft to accomodate coupler, bearings and collar. See [[File: Rotor.scad]].

Exported [[File:Rotor.stl]] including to integrate with SketchUp. See [[OpenSCAD#Import scaling]].

File:Eric Cordwood Hut.png

2014-03-15T01:26:02Z

Saucerful:

File:Rotor.stl

2014-03-14T00:27:27Z

Saucerful: Saucerful uploaded a new version of "File:Rotor.stl"

File:Rotor.scad

2014-03-14T00:21:54Z

Saucerful:

To render the rotor use

<code>
include <rotor.scad>
rotor(length=71+1/2,left=6+1/4,right=3.5+1/4,collar_length=3, spacing=3/4);
</code>

File:Rotor.scad

2014-03-14T00:16:14Z

Saucerful: Saucerful uploaded a new version of "File:Rotor.scad"

OpenSCAD

2014-03-13T23:58:37Z

Saucerful:

For 3D modelling you may want to look into openscad (at openscad.org)
written by Clifford Wold (you met him @metalab, he fixed your power cord). This uses CSG ([[wikipedia:constructive solid geometry|constructive solid geometry]]) internally and can generate [[STL]] but also *import* STL (and use CSG on the resulting model). It also can read 2D designs in DXF and extrude parts of it into the 3rd dimension ([[wikipedia:extrusion|extrusion]] can be linear or on different paths, so you can make, e.g., a torus by extruding a circle on a circular path).

Files are saved as .scad

=Collaboration=
When collaborating one will often need to export from OpenSCAD and import into other tools like [[Sketchup]] and [[Blender]]. It is worth noting that [[FreeCAD]] includes an [http://www.freecadweb.org/wiki/index.php?title=OpenSCAD_Module OpenSCAD module].

==Export==
OpenSCAD exports in several model file formats. The most widely supported is STL. Before each export one needs to compile (F6), which may take a couple of minutes depending on the complexity of the model. Then run Design > Export as STL. See [http://en.wikibooks.org/wiki/OpenSCAD_User_Manual/STL_Import_and_Export#STL_Export OpenSCAD OpenSCAD manual] if you have trouble.

By default, OpenSCAD uses a low resolution for curved primitives. To increase the resolution set the varibles [http://en.wikibooks.org/wiki/OpenSCAD_User_Manual/The_OpenSCAD_Language#.24fa.2C_.24fs_and_.24fn $fa $fs and $fn] before compiling.

==SketchUp==

===Import===
Importing into SketchUp is as simple as File > Import. Note that OpenSCAD's dimensions are unitless. The export/import process will take 1 unit in OpenSCAD to 1mm in SketchUp (regardless of SketchUp unit choice).

For easier collaboration one can scale the OpenSCAD model before exporting. For example, 1 inch = 25.4 mm; so if one is modeling in OpenSCAD with 1 unit as 1 inch the following code will produce models with units that are compatible with SketchUp:

<code>
scale([25.4, 25.4, 25.4]) {
// rendering code goes here
}
</code>

===Cleanup===
SketchUp will process the model in a way that leaves many superfluous edges. These slow down modeling performance in SketchUp. To remove them, install the SketchUp plugin [http://extensions.sketchup.com/en/content/cleanup%C2%B3 Cleanup3].

After installation, open the Plugins > Cleanup3 > Cleanup... dialog (may need to restart SketchUp) and make sure Coplanar Faces > Merge Coplanar Faces is checked and run CleanUp.

<gallery caption="Cleanup³" heights="315px" widths="390px">
File:SketchupCleanupBefore.png|Before
File:SketchupCleanupAfter.png|After
</gallery>

=External Links=
* http://www.openscad.org/
* http://en.wikibooks.org/wiki/OpenSCAD_User_Manual

[[Category:CAD]]
[[Category:Software]]
[[Category:Digital Fabrication]]

OpenSCAD

2014-03-13T23:58:09Z

Saucerful: /* Cleanup */

For 3D modelling you may want to look into openscad (at openscad.org)
written by Clifford Wold (you met him @metalab, he fixed your power cord). This uses CSG ([[wikipedia:constructive solid geometry|constructive solid geometry]]) internally and can generate [[STL]] but also *import* STL (and use CSG on the resulting model). It also can read 2D designs in DXF and extrude parts of it into the 3rd dimension ([[wikipedia:extrusion|extrusion]] can be linear or on different paths, so you can make, e.g., a torus by extruding a circle on a circular path).

Files are saved as .scad

=Collaboration=
When collaborating one will often need to export from OpenSCAD and import into other tools like [[Sketchup]] and [[Blender]]. It is worth noting that [[FreeCAD]] includes an [http://www.freecadweb.org/wiki/index.php?title=OpenSCAD_Module OpenSCAD module].

==Export==
OpenSCAD exports in several model file formats. The most widely supported is STL. Before each export one needs to compile (F6), which may take a couple of minutes depending on the complexity of the model. Then run Design > Export as STL. See [http://en.wikibooks.org/wiki/OpenSCAD_User_Manual/STL_Import_and_Export#STL_Export OpenSCAD OpenSCAD manual] if you have trouble.

By default, OpenSCAD uses a low resolution for curved primitives. To increase the resolution set the varibles [http://en.wikibooks.org/wiki/OpenSCAD_User_Manual/The_OpenSCAD_Language#.24fa.2C_.24fs_and_.24fn $fa $fs and $fn] before compiling.

==SketchUp==

===Import===
Importing into SketchUp is as simple as File > Import. Note that OpenSCAD's dimensions are unitless. The export/import process will take 1 unit in OpenSCAD to 1mm in SketchUp (regardless of SketchUp unit choice).

For easier collaboration one can scale the OpenSCAD model before exporting. For example, 1 inch = 25.4 mm; so if one is modeling in OpenSCAD with 1 unit as 1 inch the following code will produce models with units that are compatible with SketchUp:

<code>
scale([25.4, 25.4, 25.4]) {
// rendering code goes here
}
</code>

===Cleanup===
SketchUp will process the model in a way that leaves many superfluous edges. These slow down modeling performance in SketchUp. To remove them, install the SketchUp plugin [http://extensions.sketchup.com/en/content/cleanup%C2%B3 Cleanup3].

After installation, open the Plugins > Cleanup3 > Cleanup... dialog (may need to restart SketchUp) and make sure Coplanar Faces > Merge Coplanar Faces is checked and run CleanUp.

<gallery caption="Cleanup³" heights="315px" widths="390px">
File:SketchupCleanupBefore.png|Before
File:SketchupCleanupAfter.png|After
</galley

=External Links=
* http://www.openscad.org/
* http://en.wikibooks.org/wiki/OpenSCAD_User_Manual

[[Category:CAD]]
[[Category:Software]]
[[Category:Digital Fabrication]]

File:SketchupCleanupAfter.png

2014-03-13T23:33:08Z

Saucerful:

File:SketchupCleanupBefore.png

2014-03-13T23:33:05Z

Saucerful:

OpenSCAD

2014-03-13T19:06:43Z

Saucerful: /* Export */

For 3D modelling you may want to look into openscad (at openscad.org)
written by Clifford Wold (you met him @metalab, he fixed your power cord). This uses CSG ([[wikipedia:constructive solid geometry|constructive solid geometry]]) internally and can generate [[STL]] but also *import* STL (and use CSG on the resulting model). It also can read 2D designs in DXF and extrude parts of it into the 3rd dimension ([[wikipedia:extrusion|extrusion]] can be linear or on different paths, so you can make, e.g., a torus by extruding a circle on a circular path).

Files are saved as .scad

=Collaboration=
When collaborating one will often need to export from OpenSCAD and import into other tools like [[Sketchup]] and [[Blender]]. It is worth noting that [[FreeCAD]] includes an [http://www.freecadweb.org/wiki/index.php?title=OpenSCAD_Module OpenSCAD module].

==Export==
OpenSCAD exports in several model file formats. The most widely supported is STL. Before each export one needs to compile (F6), which may take a couple of minutes depending on the complexity of the model. Then run Design > Export as STL. See [http://en.wikibooks.org/wiki/OpenSCAD_User_Manual/STL_Import_and_Export#STL_Export OpenSCAD OpenSCAD manual] if you have trouble.

By default, OpenSCAD uses a low resolution for curved primitives. To increase the resolution set the varibles [http://en.wikibooks.org/wiki/OpenSCAD_User_Manual/The_OpenSCAD_Language#.24fa.2C_.24fs_and_.24fn $fa $fs and $fn] before compiling.

==SketchUp==

===Import===
Importing into SketchUp is as simple as File > Import. Note that OpenSCAD's dimensions are unitless. The export/import process will take 1 unit in OpenSCAD to 1mm in SketchUp (regardless of SketchUp unit choice).

For easier collaboration one can scale the OpenSCAD model before exporting. For example, 1 inch = 25.4 mm; so if one is modeling in OpenSCAD with 1 unit as 1 inch the following code will produce models with units that are compatible with SketchUp:

<code>
scale([25.4, 25.4, 25.4]) {
// rendering code goes here
}
</code>

===Cleanup===
SketchUp will process the model in a way that leaves many superfluous edges. These slow down modeling performance in SketchUp. To remove them, install the SketchUp plugin [http://extensions.sketchup.com/en/content/cleanup%C2%B3 Cleanup3].

After installation, open the Plugins > Cleanup3 > Cleanup... dialog (may need to restart SketchUp) and make sure Coplanar Faces > Merge Coplanar Faces is checked and run CleanUp.

=External Links=
* http://www.openscad.org/
* http://en.wikibooks.org/wiki/OpenSCAD_User_Manual

[[Category:CAD]]
[[Category:Software]]
[[Category:Digital Fabrication]]

Eric Potash Log

2014-03-13T18:59:52Z

Saucerful:

=Sun Mar 9, 2014=
Brainstormed [https://docs.google.com/spreadsheet/ccc?key=0AtgqwN0RBWmKdGZZSDlOSHBGbV82SEpDM2FiZVlFMVE&usp=sharing Soil Mixer Design Requirements]. Stripped plaster in MicroHouse and put up chicken wire. Modeled the OSE grid beam in openscad [[File:Grid_beam.scad]].

=Mon Mar 10, 2014=
Worked on [https://docs.google.com/drawings/d/1hmr3cjYupyOtJ9CEqFeu8Q-M0Y5mTMVD5RpJokJlrqw/edit?usp=sharing Soil Mixer Drawing]. Mixed and applied first layer of plaster in MicroHouse. Modeled tractor interface in openscad [[File:Tractor_interace.scad]] and exported stl [[File:Tractor_interace.stl]].

[[File:Tractor_interface.png|x200px]]
.
=Tue Mar 11, 2014=
Modeled rotor in scad: [[File:Rotor.scad]]. Limewashed the [[HabLab]].

[[File:Rotor.png|x300px]]

=Wed Mar 12, 2014=
Minor changes to tine_module in [[File:Rotor.scad]].

[[File:Tine_module.png|x200px]]

Worked through exporting from OpenSCAD to STL (e.g. [[File:Tine_module.stl]]) and importing results in SketchUp. Documented the process in [[OpenSCAD#Collaboration]]. Continued limewashing and painting the HabLab.

=Thu Mar 12, 2014=
Adapted rotor shaft to coupler (keyway and setscrews). Adjusted spacing of tine modules to put 3" between neighboring tine ends and 3½" to bucket sides. Adjusted length of shaft to accomodate coupler, bearings and collar. See [[File: Rotor.scad]].

Exported [[Rotor.stl]] including to integrate with SketchUp. See [[OpenSCAD#Import scaling]].

File:Rotor.stl

2014-03-13T18:59:50Z

Saucerful: Saucerful uploaded a new version of "File:Rotor.stl"

File:Rotor.scad

2014-03-13T18:55:46Z

Saucerful: Saucerful uploaded a new version of "File:Rotor.scad"

OpenSCAD

2014-03-13T18:51:56Z

Saucerful: /* Import and Cleanup in SketchUp */

For 3D modelling you may want to look into openscad (at openscad.org)
written by Clifford Wold (you met him @metalab, he fixed your power cord). This uses CSG ([[wikipedia:constructive solid geometry|constructive solid geometry]]) internally and can generate [[STL]] but also *import* STL (and use CSG on the resulting model). It also can read 2D designs in DXF and extrude parts of it into the 3rd dimension ([[wikipedia:extrusion|extrusion]] can be linear or on different paths, so you can make, e.g., a torus by extruding a circle on a circular path).

Files are saved as .scad

=Collaboration=
When collaborating one will often need to export from OpenSCAD and import into other tools like [[Sketchup]] and [[Blender]]. It is worth noting that [[FreeCAD]] includes an [http://www.freecadweb.org/wiki/index.php?title=OpenSCAD_Module OpenSCAD module].

==Export==
OpenSCAD exports in several model file formats. The most widely supported is STL. Before each export one needs to compile (F6), which may take a couple of minutes depending on the complexity of the model. Then run Design > Export as STL. See [http://en.wikibooks.org/wiki/OpenSCAD_User_Manual/STL_Import_and_Export#STL_Export OpenSCAD OpenSCAD manual] if you have trouble.

By default, OpenSCAD uses a low resolution for curved primitives. To increase the resolution set the varibles [http://en.wikibooks.org/wiki/OpenSCAD_User_Manual/The_OpenSCAD_Language#.24fa.2C_.24fs_and_.24fn $fa $fs and $fn] before compiling. For example <code>$fn = 24</code> is reasonable.

==SketchUp==

===Import===
Importing into SketchUp is as simple as File > Import. Note that OpenSCAD's dimensions are unitless. The export/import process will take 1 unit in OpenSCAD to 1mm in SketchUp (regardless of SketchUp unit choice).

For easier collaboration one can scale the OpenSCAD model before exporting. For example, 1 inch = 25.4 mm; so if one is modeling in OpenSCAD with 1 unit as 1 inch the following code will produce models with units that are compatible with SketchUp:

<code>
scale([25.4, 25.4, 25.4]) {
// rendering code goes here
}
</code>

===Cleanup===
SketchUp will process the model in a way that leaves many superfluous edges. These slow down modeling performance in SketchUp. To remove them, install the SketchUp plugin [http://extensions.sketchup.com/en/content/cleanup%C2%B3 Cleanup3].

After installation, open the Plugins > Cleanup3 > Cleanup... dialog (may need to restart SketchUp) and make sure Coplanar Faces > Merge Coplanar Faces is checked and run CleanUp.

=External Links=
* http://www.openscad.org/
* http://en.wikibooks.org/wiki/OpenSCAD_User_Manual

[[Category:CAD]]
[[Category:Software]]
[[Category:Digital Fabrication]]

Eric Potash Log

2014-03-13T14:32:51Z

Saucerful:

Eric Potash Log

2014-03-12T18:02:28Z

Saucerful: /* Wed Mar 12, 2014 */

File:Tine module.stl

2014-03-12T17:54:28Z

Saucerful:

File:Rotor.scad

2014-03-12T17:50:26Z

Saucerful: Saucerful uploaded a new version of "File:Rotor.scad"

Eric Potash Log

2014-03-12T17:46:53Z

Saucerful:

File:Tine module.png

2014-03-12T17:45:50Z

Saucerful:

OpenSCAD

2014-03-12T17:42:00Z

Saucerful:

For 3D modelling you may want to look into openscad (at openscad.org)
written by Clifford Wold (you met him @metalab, he fixed your power cord). This uses CSG ([[wikipedia:constructive solid geometry|constructive solid geometry]]) internally and can generate [[STL]] but also *import* STL (and use CSG on the resulting model). It also can read 2D designs in DXF and extrude parts of it into the 3rd dimension ([[wikipedia:extrusion|extrusion]] can be linear or on different paths, so you can make, e.g., a torus by extruding a circle on a circular path).

Files are saved as .scad

=Collaboration=
When collaborating one will often need to export from OpenSCAD and import into other tools like [[Sketchup]] and [[Blender]]. It is worth noting that [[FreeCAD]] includes an [http://www.freecadweb.org/wiki/index.php?title=OpenSCAD_Module OpenSCAD module].

==Export==
OpenSCAD exports in several model file formats. The most widely supported is STL. Before each export one needs to compile (F6), which may take a couple of minutes depending on the complexity of the model. Then run Design > Export as STL. See [http://en.wikibooks.org/wiki/OpenSCAD_User_Manual/STL_Import_and_Export#STL_Export OpenSCAD OpenSCAD manual] if you have trouble.

By default, OpenSCAD uses a low resolution for curved primitives. To increase the resolution set the varibles [http://en.wikibooks.org/wiki/OpenSCAD_User_Manual/The_OpenSCAD_Language#.24fa.2C_.24fs_and_.24fn $fa $fs and $fn] before compiling. For example <code>$fn = 24</code> is reasonable.

==Import and Cleanup in SketchUp==
Importing into SketchUp is as simple as File > Import.

However, SketchUp will process the model in a way that leaves many superfluous edges. These slow down modeling performance in SketchUp. To remove them, install the SketchUp plugin [http://extensions.sketchup.com/en/content/cleanup%C2%B3 Cleanup3].

After installation, open the Plugins > Cleanup3 > Cleanup... dialog (may need to restart SketchUp) and make sure Coplanar Faces > Merge Coplanar Faces is checked and run CleanUp.

=External Links=
* http://www.openscad.org/
* http://en.wikibooks.org/wiki/OpenSCAD_User_Manual

[[Category:CAD]]
[[Category:Software]]
[[Category:Digital Fabrication]]

File:Rotor.stl

2014-03-12T16:06:31Z

Saucerful:

File:Rotor.scad

2014-03-12T15:24:57Z

Saucerful: Saucerful uploaded a new version of "File:Rotor.scad"

File:Tractor interace.scad

2014-03-12T15:22:51Z

Saucerful: Saucerful uploaded a new version of "File:Tractor interace.scad"

Eric Potash Log

2014-03-12T00:06:23Z

Saucerful:

File:Rotor.png

2014-03-12T00:02:39Z

Saucerful:

File:Rotor.scad

2014-03-12T00:02:00Z

Saucerful:

File:Tractor interface.png

2014-03-12T00:00:58Z

Saucerful:

Eric Potash Log

2014-03-11T15:48:13Z

Saucerful: /* Sun Mar 9, 2014 */

Eric Potash Log

2014-03-11T15:47:16Z

Saucerful:

=Sun Mar 9, 2014=
Brainstormed [https://docs.google.com/spreadsheet/ccc?key=0AtgqwN0RBWmKdGZZSDlOSHBGbV82SEpDM2FiZVlFMVE&usp=sharing Soil Mixer Design Requirements]. Stripped plaster in MicroHouse and put up chicken wire.

=Mon Mar 10, 2014=
Worked on [https://docs.google.com/drawings/d/1hmr3cjYupyOtJ9CEqFeu8Q-M0Y5mTMVD5RpJokJlrqw/edit?usp=sharing Soil Mixer Drawing]. Mixed and applied first layer of plaster in MicroHouse. Modeled tractor interface in openscad [[File:Tractor_interace.scad]] and exported stl [[File:Tractor_interace.stl]].
.

File:Tractor interace.stl

2014-03-11T15:39:15Z

Saucerful:

File:Tractor interace.scad

2014-03-11T15:38:54Z

Saucerful:

File:Grid beam.scad

2014-03-11T05:27:38Z

Saucerful: Saucerful uploaded a new version of "File:Grid beam.scad": Defines a few OpenSCAD modules culminating in ose_beam() which describes a "standard" 4"x4" beam with 1 1/8" holes spaced 4" apart. The parameters are the thickness of the beam (typi

Defines a few OpenSCAD modules culminating in ose_beam() which describes a "standard" 4"x4" beam with 1 1/8" holes spaced 4" apart. The parameters are the thickness of the beam (typically 1/4" or 1/2") and the length of the beam.

File:Grid beam.scad

2014-03-11T05:12:05Z

Saucerful: Defines a few OpenSCAD modules culminating in ose_beam() which describes a "standard" 4"x4" beam with 1 1/8" holes spaced 4" apart. The parameters are the thickness of the beam (typically 1/4" or 1/2") and the length of the beam.

Eric Potash Log

2014-03-11T04:56:42Z

Saucerful: /* Mon Mar 10, 2014 */

=Sun Mar 9, 2014=
Brainstormed [https://docs.google.com/spreadsheet/ccc?key=0AtgqwN0RBWmKdGZZSDlOSHBGbV82SEpDM2FiZVlFMVE&usp=sharing Soil Mixer Design Requirements]. Stripped plaster in MicroHouse and put up chicken wire.

=Mon Mar 10, 2014=
Worked on [https://docs.google.com/drawings/d/1hmr3cjYupyOtJ9CEqFeu8Q-M0Y5mTMVD5RpJokJlrqw/edit?usp=sharing Soil Mixer Drawing]. Mixed and applied first layer of plaster in MicroHouse.

Eric Potash Log

2014-03-11T04:55:44Z

Saucerful: /* Sun Mar 9, 2014 */

=Sun Mar 9, 2014=
Brainstormed [https://docs.google.com/spreadsheet/ccc?key=0AtgqwN0RBWmKdGZZSDlOSHBGbV82SEpDM2FiZVlFMVE&usp=sharing Soil Mixer Design Requirements]. Stripped plaster in MicroHouse and put up chicken wire.

=Mon Mar 10, 2014=
[https://docs.google.com/drawings/d/1hmr3cjYupyOtJ9CEqFeu8Q-M0Y5mTMVD5RpJokJlrqw/edit?usp=sharing Soil Mixer Drawing]

Eric Potash Log

2014-03-10T17:07:39Z

Saucerful:

=Sun Mar 9, 2014=
[https://docs.google.com/spreadsheet/ccc?key=0AtgqwN0RBWmKdGZZSDlOSHBGbV82SEpDM2FiZVlFMVE&usp=sharing Soil Mixer Design Requirements]

=Mon Mar 10, 2014=
[https://docs.google.com/drawings/d/1hmr3cjYupyOtJ9CEqFeu8Q-M0Y5mTMVD5RpJokJlrqw/edit?usp=sharing Soil Mixer Drawing]

Soil Mixer Construction Set Requirements

2014-03-09T18:03:58Z

Saucerful: Created page with "<html><iframe width='1000' height='300' frameborder='0' src='https://docs.google.com/spreadsheet/pub?key=0AtgqwN0RBWmKdGZZSDlOSHBGbV82SEpDM2FiZVlFMVE&single=true&gid=0&output=..."