Empathy List Archives

M

MichaelAtOz

Mon, Feb 27, 2017 11:28 PM

Depends on your code, but you can prefix one set with '%' that bit will
preview grey, and won't render, so you can export the non-prefixed bit. Then
invert the prefixes for the other set.

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Depends on your code, but you can prefix one set with '%' that bit will preview grey, and won't render, so you can export the non-prefixed bit. Then invert the prefixes for the other set. ----- Admin - PM me if you need anything, or if I've done something stupid... Unless specifically shown otherwise above, my contribution is in the Public Domain; to the extent possible under law, I have waived all copyright and related or neighbouring rights to this work. Obviously inclusion of works of previous authors is not included in the above. The TPP is no simple “trade agreement.” Fight it! http://www.ourfairdeal.org/ time is running out! -- View this message in context: http://forum.openscad.org/Export-pieces-of-an-object-tp20615p20621.html Sent from the OpenSCAD mailing list archive at Nabble.com.

J

jazzjohn

Mon, Feb 27, 2017 11:42 PM

The design is all based on subtracting shapes from one cube, so I don't see
how I can grey out one part of the main cube but not the other.

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The design is all based on subtracting shapes from one cube, so I don't see how I can grey out one part of the main cube but not the other. -- View this message in context: http://forum.openscad.org/Export-pieces-of-an-object-tp20615p20626.html Sent from the OpenSCAD mailing list archive at Nabble.com.

M

MichaelAtOz

Mon, Feb 27, 2017 11:56 PM

If you can share your code it would be easier than guessing.

Admin - PM me if you need anything, or if I've done something stupid...

Unless specifically shown otherwise above, my contribution is in the Public Domain; to the extent possible under law, I have waived all copyright and related or neighbouring rights to this work. Obviously inclusion of works of previous authors is not included in the above.

The TPP is no simple “trade agreement.” Fight it! http://www.ourfairdeal.org/ time is running out!

View this message in context: http://forum.openscad.org/Export-pieces-of-an-object-tp20615p20630.html
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If you can share your code it would be easier than guessing. ----- Admin - PM me if you need anything, or if I've done something stupid... Unless specifically shown otherwise above, my contribution is in the Public Domain; to the extent possible under law, I have waived all copyright and related or neighbouring rights to this work. Obviously inclusion of works of previous authors is not included in the above. The TPP is no simple “trade agreement.” Fight it! http://www.ourfairdeal.org/ time is running out! -- View this message in context: http://forum.openscad.org/Export-pieces-of-an-object-tp20615p20630.html Sent from the OpenSCAD mailing list archive at Nabble.com.

RP

Ronaldo Persiano

Tue, Feb 28, 2017 12:01 AM

If you have subtracted the gap from a whole piece, you will not be able to
have them in separated stl files.

If you have subtracted the gap from a whole piece, you will not be able to have them in separated stl files.

J

jazzjohn

Tue, Feb 28, 2017 2:35 PM

Ronaldo wrote

If you have subtracted the gap from a whole piece, you will not be able to
have them in separated stl files.

OpenSCAD mailing list

Discuss@.openscad

http://lists.openscad.org/mailman/listinfo/discuss_lists.openscad.org

Yes, that makes sense. Maybe another program like Meshmixer can do it with
the STL file.

On a related note, is there a rule of thumb for the minimum width of a
vertical gap a printer with ABS material can handle?

Thank you all for the responses. This a a great and helpful community of
users. Glad I found OpenSCAD!

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Ronaldo wrote > If you have subtracted the gap from a whole piece, you will not be able to > have them in separated stl files. > > _______________________________________________ > OpenSCAD mailing list > Discuss@.openscad > http://lists.openscad.org/mailman/listinfo/discuss_lists.openscad.org Yes, that makes sense. Maybe another program like Meshmixer can do it with the STL file. On a related note, is there a rule of thumb for the minimum width of a vertical gap a printer with ABS material can handle? Thank you all for the responses. This a a great and helpful community of users. Glad I found OpenSCAD! -- View this message in context: http://forum.openscad.org/Export-pieces-of-an-object-tp20615p20643.html Sent from the OpenSCAD mailing list archive at Nabble.com.

NH

nop head

Tue, Feb 28, 2017 2:48 PM

The minimum gap is purely a function of printer accuracy / filament
accuracy. On a perfect printer with perfect filament it would be zero. In
practice it depends on backlash, filament diameter variations and the
synchronisation between feed rate and flow rate during acceleration, etc.

On 28 February 2017 at 14:35, jazzjohn jazzjohn@gmail.com wrote:

Ronaldo wrote

If you have subtracted the gap from a whole piece, you will not be able

to

have them in separated stl files.

OpenSCAD mailing list

Discuss@.openscad

http://lists.openscad.org/mailman/listinfo/discuss_lists.openscad.org

Yes, that makes sense. Maybe another program like Meshmixer can do it with
the STL file.

On a related note, is there a rule of thumb for the minimum width of a
vertical gap a printer with ABS material can handle?

Thank you all for the responses. This a a great and helpful community of
users. Glad I found OpenSCAD!

--
View this message in context: http://forum.openscad.org/
Export-pieces-of-an-object-tp20615p20643.html
Sent from the OpenSCAD mailing list archive at Nabble.com.

OpenSCAD mailing list
Discuss@lists.openscad.org
http://lists.openscad.org/mailman/listinfo/discuss_lists.openscad.org

The minimum gap is purely a function of printer accuracy / filament accuracy. On a perfect printer with perfect filament it would be zero. In practice it depends on backlash, filament diameter variations and the synchronisation between feed rate and flow rate during acceleration, etc. On 28 February 2017 at 14:35, jazzjohn <jazzjohn@gmail.com> wrote: > Ronaldo wrote > > If you have subtracted the gap from a whole piece, you will not be able > to > > have them in separated stl files. > > > > _______________________________________________ > > OpenSCAD mailing list > > > Discuss@.openscad > > > http://lists.openscad.org/mailman/listinfo/discuss_lists.openscad.org > > > > Yes, that makes sense. Maybe another program like Meshmixer can do it with > the STL file. > > On a related note, is there a rule of thumb for the minimum width of a > vertical gap a printer with ABS material can handle? > > Thank you all for the responses. This a a great and helpful community of > users. Glad I found OpenSCAD! > > > > -- > View this message in context: http://forum.openscad.org/ > Export-pieces-of-an-object-tp20615p20643.html > Sent from the OpenSCAD mailing list archive at Nabble.com. > > _______________________________________________ > OpenSCAD mailing list > Discuss@lists.openscad.org > http://lists.openscad.org/mailman/listinfo/discuss_lists.openscad.org >

J

jazzjohn

Tue, Feb 28, 2017 6:30 PM

Nophead:

I posed the question to the company that makes the Statasys uPrint SE Plus
printer and was told the minimum gap should be at least .030 inch (3 layers)
to make sure it builds correctly.

Not the answer I wanted since the current gap in the design is .005 inch.

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Nophead: I posed the question to the company that makes the Statasys uPrint SE Plus printer and was told the minimum gap should be at least .030 inch (3 layers) to make sure it builds correctly. Not the answer I wanted since the current gap in the design is .005 inch. -- View this message in context: http://forum.openscad.org/Export-pieces-of-an-object-tp20615p20660.html Sent from the OpenSCAD mailing list archive at Nabble.com.

N

nophead

Tue, Feb 28, 2017 6:37 PM

I thought you meant the vertical gap between between two parts separated
horizontally. If you mean a horizontal gap between two parts separated
vertically then it would need support material in the gap, so that is
probably why they specified a number of layers.

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I thought you meant the vertical gap between between two parts separated horizontally. If you mean a horizontal gap between two parts separated vertically then it would need support material in the gap, so that is probably why they specified a number of layers. -- View this message in context: http://forum.openscad.org/Export-pieces-of-an-object-tp20615p20661.html Sent from the OpenSCAD mailing list archive at Nabble.com.

M

MichaelAtOz

Wed, Mar 1, 2017 2:58 AM

nophead, where is your old post about the ID of holes, that's the best
explanation I recall.

jazzjohn, for FDM printers you never get a square corner, the printhead
movement always drags the extrudate inside the radius. So those square cuts
will not be square. IIRC you want to open up the inside corner and flatten
the outside. Like my very bad drawing in the corner here:
http://forum.openscad.org/file/n20676/corner.jpg

Admin - PM me if you need anything, or if I've done something stupid...

Unless specifically shown otherwise above, my contribution is in the Public Domain; to the extent possible under law, I have waived all copyright and related or neighbouring rights to this work. Obviously inclusion of works of previous authors is not included in the above.

The TPP is no simple “trade agreement.” Fight it! http://www.ourfairdeal.org/ time is running out!

View this message in context: http://forum.openscad.org/Export-pieces-of-an-object-tp20615p20676.html
Sent from the OpenSCAD mailing list archive at Nabble.com.

nophead, where is your old post about the ID of holes, that's the best explanation I recall. jazzjohn, for FDM printers you never get a square corner, the printhead movement always drags the extrudate inside the radius. So those square cuts will not be square. IIRC you want to open up the inside corner and flatten the outside. Like my very bad drawing in the corner here: <http://forum.openscad.org/file/n20676/corner.jpg> ----- Admin - PM me if you need anything, or if I've done something stupid... Unless specifically shown otherwise above, my contribution is in the Public Domain; to the extent possible under law, I have waived all copyright and related or neighbouring rights to this work. Obviously inclusion of works of previous authors is not included in the above. The TPP is no simple “trade agreement.” Fight it! http://www.ourfairdeal.org/ time is running out! -- View this message in context: http://forum.openscad.org/Export-pieces-of-an-object-tp20615p20676.html Sent from the OpenSCAD mailing list archive at Nabble.com.

N

nophead

Wed, Mar 1, 2017 10:33 AM

http://hydraraptor.blogspot.co.uk/2011/02/polyholes.html

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http://hydraraptor.blogspot.co.uk/2011/02/polyholes.html -- View this message in context: http://forum.openscad.org/Export-pieces-of-an-object-tp20615p20680.html Sent from the OpenSCAD mailing list archive at Nabble.com.

discuss@lists.openscad.org

Re: [OpenSCAD] Export pieces of an object?

The TPP is no simple “trade agreement.” Fight it! http://www.ourfairdeal.org/ time is running out!

The TPP is no simple “trade agreement.” Fight it! http://www.ourfairdeal.org/ time is running out!

The TPP is no simple “trade agreement.” Fight it! http://www.ourfairdeal.org/ time is running out!