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f6 render fails

RW
Raymond West
Tue, Feb 14, 2023 5:16 PM

Here's a screen grab of the console errors:-

OK 'til here.

[fast-csg] corefinement mesh union #16: 241376 facets vs. 121076 facets

WARNING: [fast-csg] Corefinement corefinement mesh union #16 failed with
an error: CGAL ERROR: assertion violation!

Expr: nodes.size() == std::set<Point_3>(nodes.begin(), nodes.end()).size()

File:
/mxe/usr/x86_64-w64-mingw32.static.posix/include/CGAL/Polygon_mesh_processing/internal/Corefinement/intersection_nodes.h

Line: 442

WARNING: Dumps of operands were written to corefinement mesh union 16
lhs.off and corefinement mesh union 16 rhs.off

[fast-csg] nef union: 238148 facets vs. 119910 facets

ERROR: CGAL error in CGALUtils::applyUnion3DHybrid: CGAL ERROR:
precondition violation!

Expr: ! _is_valid (_succ2_P) || comp_f (node1_P->object,
_succ2_P->object) != LARGER

File: /mxe/usr/x86_64-w64-mingw32.static.posix/include/CGAL/Multiset.h

Line: 2344

[fast-csg] corefinement mesh union #17: 60924 facets vs. 60924 facets

Geometries in cache: 22

Geometry cache size in bytes: 96506808

CGAL Polyhedrons in cache: 1

CGAL cache size in bytes: 3411816

Total rendering time: 0:01:15.326

Top level object is a 3D object:

Facets: 121848

Bounding box:

Min: -47.42, -48.21, -89.62

Max: 46.38, 48.51, 89.62

Size: 93.80, 96.72, 179.24

Rendering finished.

Basically, its a number of copies of an stl file arranged around a
sphere, with slight overlaps. It fast renders OK. Any ideas?

Here's a screen grab of the console errors:- OK 'til here. [fast-csg] corefinement mesh union #16: 241376 facets vs. 121076 facets WARNING: [fast-csg] Corefinement corefinement mesh union #16 failed with an error: CGAL ERROR: assertion violation! Expr: nodes.size() == std::set<Point_3>(nodes.begin(), nodes.end()).size() File: /mxe/usr/x86_64-w64-mingw32.static.posix/include/CGAL/Polygon_mesh_processing/internal/Corefinement/intersection_nodes.h Line: 442 WARNING: Dumps of operands were written to corefinement mesh union 16 lhs.off and corefinement mesh union 16 rhs.off [fast-csg] nef union: 238148 facets vs. 119910 facets ERROR: CGAL error in CGALUtils::applyUnion3DHybrid: CGAL ERROR: precondition violation! Expr: ! _is_valid (_succ2_P) || comp_f (node1_P->object, _succ2_P->object) != LARGER File: /mxe/usr/x86_64-w64-mingw32.static.posix/include/CGAL/Multiset.h Line: 2344 [fast-csg] corefinement mesh union #17: 60924 facets vs. 60924 facets Geometries in cache: 22 Geometry cache size in bytes: 96506808 CGAL Polyhedrons in cache: 1 CGAL cache size in bytes: 3411816 Total rendering time: 0:01:15.326 Top level object is a 3D object: Facets: 121848 Bounding box: Min: -47.42, -48.21, -89.62 Max: 46.38, 48.51, 89.62 Size: 93.80, 96.72, 179.24 Rendering finished. Basically, its a number of copies of an stl file arranged around a sphere, with slight overlaps. It fast renders OK. Any ideas?
RW
Raymond West
Tue, Feb 14, 2023 5:29 PM

edit to add, it seems to have generated  a number of files named similar
to 'corefinment mesh union 4 lhs.off'. What am I supposed to do with them?

On 14/02/2023 17:16, Raymond West wrote:

Here's a screen grab of the console errors:-

OK 'til here.

[fast-csg] corefinement mesh union #16: 241376 facets vs. 121076 facets

WARNING: [fast-csg] Corefinement corefinement mesh union #16 failed
with an error: CGAL ERROR: assertion violation!

Expr: nodes.size() == std::set<Point_3>(nodes.begin(), nodes.end()).size()

File:
/mxe/usr/x86_64-w64-mingw32.static.posix/include/CGAL/Polygon_mesh_processing/internal/Corefinement/intersection_nodes.h

Line: 442

WARNING: Dumps of operands were written to corefinement mesh union 16
lhs.off and corefinement mesh union 16 rhs.off

[fast-csg] nef union: 238148 facets vs. 119910 facets

ERROR: CGAL error in CGALUtils::applyUnion3DHybrid: CGAL ERROR:
precondition violation!

Expr: ! _is_valid (_succ2_P) || comp_f (node1_P->object,
_succ2_P->object) != LARGER

File: /mxe/usr/x86_64-w64-mingw32.static.posix/include/CGAL/Multiset.h

Line: 2344

[fast-csg] corefinement mesh union #17: 60924 facets vs. 60924 facets

Geometries in cache: 22

Geometry cache size in bytes: 96506808

CGAL Polyhedrons in cache: 1

CGAL cache size in bytes: 3411816

Total rendering time: 0:01:15.326

Top level object is a 3D object:

Facets: 121848

Bounding box:

Min: -47.42, -48.21, -89.62

Max: 46.38, 48.51, 89.62

Size: 93.80, 96.72, 179.24

Rendering finished.

Basically, its a number of copies of an stl file arranged around a
sphere, with slight overlaps. It fast renders OK. Any ideas?


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To unsubscribe send an email todiscuss-leave@lists.openscad.org

edit to add, it seems to have generated  a number of files named similar to 'corefinment mesh union 4 lhs.off'. What am I supposed to do with them? On 14/02/2023 17:16, Raymond West wrote: > > Here's a screen grab of the console errors:- > > OK 'til here. > > [fast-csg] corefinement mesh union #16: 241376 facets vs. 121076 facets > > WARNING: [fast-csg] Corefinement corefinement mesh union #16 failed > with an error: CGAL ERROR: assertion violation! > > Expr: nodes.size() == std::set<Point_3>(nodes.begin(), nodes.end()).size() > > File: > /mxe/usr/x86_64-w64-mingw32.static.posix/include/CGAL/Polygon_mesh_processing/internal/Corefinement/intersection_nodes.h > > Line: 442 > > > WARNING: Dumps of operands were written to corefinement mesh union 16 > lhs.off and corefinement mesh union 16 rhs.off > > [fast-csg] nef union: 238148 facets vs. 119910 facets > > ERROR: CGAL error in CGALUtils::applyUnion3DHybrid: CGAL ERROR: > precondition violation! > > Expr: ! _is_valid (_succ2_P) || comp_f (node1_P->object, > _succ2_P->object) != LARGER > > File: /mxe/usr/x86_64-w64-mingw32.static.posix/include/CGAL/Multiset.h > > Line: 2344 > > [fast-csg] corefinement mesh union #17: 60924 facets vs. 60924 facets > > Geometries in cache: 22 > > Geometry cache size in bytes: 96506808 > > CGAL Polyhedrons in cache: 1 > > CGAL cache size in bytes: 3411816 > > Total rendering time: 0:01:15.326 > > Top level object is a 3D object: > > Facets: 121848 > > Bounding box: > > Min: -47.42, -48.21, -89.62 > > Max: 46.38, 48.51, 89.62 > > Size: 93.80, 96.72, 179.24 > > Rendering finished. > > > Basically, its a number of copies of an stl file arranged around a > sphere, with slight overlaps. It fast renders OK. Any ideas? > > > _______________________________________________ > OpenSCAD mailing list > To unsubscribe send an email todiscuss-leave@lists.openscad.org
RW
Ray West
Wed, Feb 15, 2023 2:06 PM

I imported the off files into meshlab, (openai.chat explained how to
merge them), exported as stl, then imported them back into openscad to
join other parts to what I wanted  - with no errors or warnings, - Tudor
roses as the the pentagon faces of an icosidodecahedron.  (stl file,
156,779KB)

On 14/02/2023 17:29, Raymond West wrote:

edit to add, it seems to have generated  a number of files named
similar to 'corefinment mesh union 4 lhs.off'. What am I supposed to
do with them?

On 14/02/2023 17:16, Raymond West wrote:

Here's a screen grab of the console errors:-

OK 'til here.

[fast-csg] corefinement mesh union #16: 241376 facets vs. 121076 facets

WARNING: [fast-csg] Corefinement corefinement mesh union #16 failed
with an error: CGAL ERROR: assertion violation!

Expr: nodes.size() == std::set<Point_3>(nodes.begin(),
nodes.end()).size()

File:
/mxe/usr/x86_64-w64-mingw32.static.posix/include/CGAL/Polygon_mesh_processing/internal/Corefinement/intersection_nodes.h

Line: 442

WARNING: Dumps of operands were written to corefinement mesh union 16
lhs.off and corefinement mesh union 16 rhs.off

[fast-csg] nef union: 238148 facets vs. 119910 facets

ERROR: CGAL error in CGALUtils::applyUnion3DHybrid: CGAL ERROR:
precondition violation!

Expr: ! _is_valid (_succ2_P) || comp_f (node1_P->object,
_succ2_P->object) != LARGER

File: /mxe/usr/x86_64-w64-mingw32.static.posix/include/CGAL/Multiset.h

Line: 2344

[fast-csg] corefinement mesh union #17: 60924 facets vs. 60924 facets

Geometries in cache: 22

Geometry cache size in bytes: 96506808

CGAL Polyhedrons in cache: 1

CGAL cache size in bytes: 3411816

Total rendering time: 0:01:15.326

Top level object is a 3D object:

Facets: 121848

Bounding box:

Min: -47.42, -48.21, -89.62

Max: 46.38, 48.51, 89.62

Size: 93.80, 96.72, 179.24

Rendering finished.

Basically, its a number of copies of an stl file arranged around a
sphere, with slight overlaps. It fast renders OK. Any ideas?


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I imported the off files into meshlab, (openai.chat explained how to merge them), exported as stl, then imported them back into openscad to join other parts to what I wanted  - with no errors or warnings, - Tudor roses as the the pentagon faces of an icosidodecahedron.  (stl file, 156,779KB) On 14/02/2023 17:29, Raymond West wrote: > > edit to add, it seems to have generated  a number of files named > similar to 'corefinment mesh union 4 lhs.off'. What am I supposed to > do with them? > > On 14/02/2023 17:16, Raymond West wrote: >> >> Here's a screen grab of the console errors:- >> >> OK 'til here. >> >> [fast-csg] corefinement mesh union #16: 241376 facets vs. 121076 facets >> >> WARNING: [fast-csg] Corefinement corefinement mesh union #16 failed >> with an error: CGAL ERROR: assertion violation! >> >> Expr: nodes.size() == std::set<Point_3>(nodes.begin(), >> nodes.end()).size() >> >> File: >> /mxe/usr/x86_64-w64-mingw32.static.posix/include/CGAL/Polygon_mesh_processing/internal/Corefinement/intersection_nodes.h >> >> Line: 442 >> >> >> WARNING: Dumps of operands were written to corefinement mesh union 16 >> lhs.off and corefinement mesh union 16 rhs.off >> >> [fast-csg] nef union: 238148 facets vs. 119910 facets >> >> ERROR: CGAL error in CGALUtils::applyUnion3DHybrid: CGAL ERROR: >> precondition violation! >> >> Expr: ! _is_valid (_succ2_P) || comp_f (node1_P->object, >> _succ2_P->object) != LARGER >> >> File: /mxe/usr/x86_64-w64-mingw32.static.posix/include/CGAL/Multiset.h >> >> Line: 2344 >> >> [fast-csg] corefinement mesh union #17: 60924 facets vs. 60924 facets >> >> Geometries in cache: 22 >> >> Geometry cache size in bytes: 96506808 >> >> CGAL Polyhedrons in cache: 1 >> >> CGAL cache size in bytes: 3411816 >> >> Total rendering time: 0:01:15.326 >> >> Top level object is a 3D object: >> >> Facets: 121848 >> >> Bounding box: >> >> Min: -47.42, -48.21, -89.62 >> >> Max: 46.38, 48.51, 89.62 >> >> Size: 93.80, 96.72, 179.24 >> >> Rendering finished. >> >> >> Basically, its a number of copies of an stl file arranged around a >> sphere, with slight overlaps. It fast renders OK. Any ideas? >> >> >> _______________________________________________ >> OpenSCAD mailing list >> To unsubscribe send an email todiscuss-leave@lists.openscad.org > > _______________________________________________ > OpenSCAD mailing list > To unsubscribe send an email todiscuss-leave@lists.openscad.org
FH
Father Horton
Wed, Feb 15, 2023 2:42 PM

Nice!
On Wed, Feb 15, 2023 at 8:07 AM Ray West raywest@raywest.com wrote:

I imported the off files into meshlab, (openai.chat explained how to merge
them), exported as stl, then imported them back into openscad to join other
parts to what I wanted  - with no errors or warnings, - Tudor roses as the
the pentagon faces of an icosidodecahedron.  (stl file, 156,779KB)

On 14/02/2023 17:29, Raymond West wrote:

edit to add, it seems to have generated  a number of files named similar
to 'corefinment mesh union 4 lhs.off'. What am I supposed to do with them?
On 14/02/2023 17:16, Raymond West wrote:

Here's a screen grab of the console errors:-
OK 'til here.

[fast-csg] corefinement mesh union #16: 241376 facets vs. 121076 facets

WARNING: [fast-csg] Corefinement corefinement mesh union #16 failed with
an error: CGAL ERROR: assertion violation!

Expr: nodes.size() == std::set<Point_3>(nodes.begin(), nodes.end()).size()

File:
/mxe/usr/x86_64-w64-mingw32.static.posix/include/CGAL/Polygon_mesh_processing/internal/Corefinement/intersection_nodes.h

Line: 442

WARNING: Dumps of operands were written to corefinement mesh union 16
lhs.off and corefinement mesh union 16 rhs.off

[fast-csg] nef union: 238148 facets vs. 119910 facets

ERROR: CGAL error in CGALUtils::applyUnion3DHybrid: CGAL ERROR:
precondition violation!

Expr: ! _is_valid (_succ2_P) || comp_f (node1_P->object, _succ2_P->object)
!= LARGER

File: /mxe/usr/x86_64-w64-mingw32.static.posix/include/CGAL/Multiset.h

Line: 2344

[fast-csg] corefinement mesh union #17: 60924 facets vs. 60924 facets

Geometries in cache: 22

Geometry cache size in bytes: 96506808

CGAL Polyhedrons in cache: 1

CGAL cache size in bytes: 3411816

Total rendering time: 0:01:15.326

Top level object is a 3D object:

Facets: 121848

Bounding box:

Min: -47.42, -48.21, -89.62

Max: 46.38, 48.51, 89.62

Size: 93.80, 96.72, 179.24

Rendering finished.

Basically, its a number of copies of an stl file arranged around a sphere,
with slight overlaps. It fast renders OK. Any ideas?


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To unsubscribe send an email to discuss-leave@lists.openscad.org


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To unsubscribe send an email to discuss-leave@lists.openscad.org


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Nice! On Wed, Feb 15, 2023 at 8:07 AM Ray West <raywest@raywest.com> wrote: > I imported the off files into meshlab, (openai.chat explained how to merge > them), exported as stl, then imported them back into openscad to join other > parts to what I wanted - with no errors or warnings, - Tudor roses as the > the pentagon faces of an icosidodecahedron. (stl file, 156,779KB) > > > On 14/02/2023 17:29, Raymond West wrote: > > edit to add, it seems to have generated a number of files named similar > to 'corefinment mesh union 4 lhs.off'. What am I supposed to do with them? > On 14/02/2023 17:16, Raymond West wrote: > > Here's a screen grab of the console errors:- > OK 'til here. > > [fast-csg] corefinement mesh union #16: 241376 facets vs. 121076 facets > > WARNING: [fast-csg] Corefinement corefinement mesh union #16 failed with > an error: CGAL ERROR: assertion violation! > > Expr: nodes.size() == std::set<Point_3>(nodes.begin(), nodes.end()).size() > > File: > /mxe/usr/x86_64-w64-mingw32.static.posix/include/CGAL/Polygon_mesh_processing/internal/Corefinement/intersection_nodes.h > > Line: 442 > > > WARNING: Dumps of operands were written to corefinement mesh union 16 > lhs.off and corefinement mesh union 16 rhs.off > > [fast-csg] nef union: 238148 facets vs. 119910 facets > > ERROR: CGAL error in CGALUtils::applyUnion3DHybrid: CGAL ERROR: > precondition violation! > > Expr: ! _is_valid (_succ2_P) || comp_f (node1_P->object, _succ2_P->object) > != LARGER > > File: /mxe/usr/x86_64-w64-mingw32.static.posix/include/CGAL/Multiset.h > > Line: 2344 > > [fast-csg] corefinement mesh union #17: 60924 facets vs. 60924 facets > > Geometries in cache: 22 > > Geometry cache size in bytes: 96506808 > > CGAL Polyhedrons in cache: 1 > > CGAL cache size in bytes: 3411816 > > Total rendering time: 0:01:15.326 > > Top level object is a 3D object: > > Facets: 121848 > > Bounding box: > > Min: -47.42, -48.21, -89.62 > > Max: 46.38, 48.51, 89.62 > > Size: 93.80, 96.72, 179.24 > > Rendering finished. > > > Basically, its a number of copies of an stl file arranged around a sphere, > with slight overlaps. It fast renders OK. Any ideas? > > _______________________________________________ > OpenSCAD mailing list > To unsubscribe send an email to discuss-leave@lists.openscad.org > > > _______________________________________________ > OpenSCAD mailing list > To unsubscribe send an email to discuss-leave@lists.openscad.org > > _______________________________________________ > OpenSCAD mailing list > To unsubscribe send an email to discuss-leave@lists.openscad.org >
MM
Michael Möller
Wed, Feb 15, 2023 3:29 PM

... but will it print ?

On Wed, 15 Feb 2023 at 15:43, Father Horton fatherhorton@gmail.com wrote:

Nice!
On Wed, Feb 15, 2023 at 8:07 AM Ray West raywest@raywest.com wrote:

I imported the off files into meshlab, (openai.chat explained how to
merge them), exported as stl, then imported them back into openscad to join
other parts to what I wanted  - with no errors or warnings, - Tudor roses
as the the pentagon faces of an icosidodecahedron.  (stl file, 156,779KB)

On 14/02/2023 17:29, Raymond West wrote:

edit to add, it seems to have generated  a number of files named similar
to 'corefinment mesh union 4 lhs.off'. What am I supposed to do with them?
On 14/02/2023 17:16, Raymond West wrote:

Here's a screen grab of the console errors:-
OK 'til here.

[fast-csg] corefinement mesh union #16: 241376 facets vs. 121076 facets

WARNING: [fast-csg] Corefinement corefinement mesh union #16 failed with
an error: CGAL ERROR: assertion violation!

Expr: nodes.size() == std::set<Point_3>(nodes.begin(), nodes.end()).size()

File:
/mxe/usr/x86_64-w64-mingw32.static.posix/include/CGAL/Polygon_mesh_processing/internal/Corefinement/intersection_nodes.h

Line: 442

WARNING: Dumps of operands were written to corefinement mesh union 16
lhs.off and corefinement mesh union 16 rhs.off

[fast-csg] nef union: 238148 facets vs. 119910 facets

ERROR: CGAL error in CGALUtils::applyUnion3DHybrid: CGAL ERROR:
precondition violation!

Expr: ! _is_valid (_succ2_P) || comp_f (node1_P->object,
_succ2_P->object) != LARGER

File: /mxe/usr/x86_64-w64-mingw32.static.posix/include/CGAL/Multiset.h

Line: 2344

[fast-csg] corefinement mesh union #17: 60924 facets vs. 60924 facets

Geometries in cache: 22

Geometry cache size in bytes: 96506808

CGAL Polyhedrons in cache: 1

CGAL cache size in bytes: 3411816

Total rendering time: 0:01:15.326

Top level object is a 3D object:

Facets: 121848

Bounding box:

Min: -47.42, -48.21, -89.62

Max: 46.38, 48.51, 89.62

Size: 93.80, 96.72, 179.24

Rendering finished.

Basically, its a number of copies of an stl file arranged around a
sphere, with slight overlaps. It fast renders OK. Any ideas?


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To unsubscribe send an email to discuss-leave@lists.openscad.org


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To unsubscribe send an email to discuss-leave@lists.openscad.org


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... but will it print ? On Wed, 15 Feb 2023 at 15:43, Father Horton <fatherhorton@gmail.com> wrote: > > Nice! > On Wed, Feb 15, 2023 at 8:07 AM Ray West <raywest@raywest.com> wrote: > >> I imported the off files into meshlab, (openai.chat explained how to >> merge them), exported as stl, then imported them back into openscad to join >> other parts to what I wanted - with no errors or warnings, - Tudor roses >> as the the pentagon faces of an icosidodecahedron. (stl file, 156,779KB) >> >> >> On 14/02/2023 17:29, Raymond West wrote: >> >> edit to add, it seems to have generated a number of files named similar >> to 'corefinment mesh union 4 lhs.off'. What am I supposed to do with them? >> On 14/02/2023 17:16, Raymond West wrote: >> >> Here's a screen grab of the console errors:- >> OK 'til here. >> >> [fast-csg] corefinement mesh union #16: 241376 facets vs. 121076 facets >> >> WARNING: [fast-csg] Corefinement corefinement mesh union #16 failed with >> an error: CGAL ERROR: assertion violation! >> >> Expr: nodes.size() == std::set<Point_3>(nodes.begin(), nodes.end()).size() >> >> File: >> /mxe/usr/x86_64-w64-mingw32.static.posix/include/CGAL/Polygon_mesh_processing/internal/Corefinement/intersection_nodes.h >> >> Line: 442 >> >> >> WARNING: Dumps of operands were written to corefinement mesh union 16 >> lhs.off and corefinement mesh union 16 rhs.off >> >> [fast-csg] nef union: 238148 facets vs. 119910 facets >> >> ERROR: CGAL error in CGALUtils::applyUnion3DHybrid: CGAL ERROR: >> precondition violation! >> >> Expr: ! _is_valid (_succ2_P) || comp_f (node1_P->object, >> _succ2_P->object) != LARGER >> >> File: /mxe/usr/x86_64-w64-mingw32.static.posix/include/CGAL/Multiset.h >> >> Line: 2344 >> >> [fast-csg] corefinement mesh union #17: 60924 facets vs. 60924 facets >> >> Geometries in cache: 22 >> >> Geometry cache size in bytes: 96506808 >> >> CGAL Polyhedrons in cache: 1 >> >> CGAL cache size in bytes: 3411816 >> >> Total rendering time: 0:01:15.326 >> >> Top level object is a 3D object: >> >> Facets: 121848 >> >> Bounding box: >> >> Min: -47.42, -48.21, -89.62 >> >> Max: 46.38, 48.51, 89.62 >> >> Size: 93.80, 96.72, 179.24 >> >> Rendering finished. >> >> >> Basically, its a number of copies of an stl file arranged around a >> sphere, with slight overlaps. It fast renders OK. Any ideas? >> >> _______________________________________________ >> OpenSCAD mailing list >> To unsubscribe send an email to discuss-leave@lists.openscad.org >> >> >> _______________________________________________ >> OpenSCAD mailing list >> To unsubscribe send an email to discuss-leave@lists.openscad.org >> >> _______________________________________________ >> OpenSCAD mailing list >> To unsubscribe send an email to discuss-leave@lists.openscad.org >> > _______________________________________________ > OpenSCAD mailing list > To unsubscribe send an email to discuss-leave@lists.openscad.org >
RW
Raymond West
Fri, Feb 17, 2023 3:12 PM

On 15/02/2023 15:29, Michael Möller wrote:

... but will it print ?

Cura got in a tangle with the slicing. I intended printing in vase mode,
but the edges of the petals have to printed before the centres, for the
bottom row, which means that support would be needed. I filled in the 20
triangles, saved as stl, but again problems with Cura. I loaded the stl
into meshmagic, and converted to .obj file. It said the conversion would
take a long time - it was in fact about a whole day, but it converted it
successfully. I'm not sure if I want it to take nine hours printing at
half size, with supports.

On 15/02/2023 15:29, Michael Möller wrote:

... but will it print ?

On Wed, 15 Feb 2023 at 15:43, Father Horton fatherhorton@gmail.com
wrote:

On 15/02/2023 15:29, Michael Möller wrote: > ... but will it print ? > > Cura got in a tangle with the slicing. I intended printing in vase mode, but the edges of the petals have to printed before the centres, for the bottom row, which means that support would be needed. I filled in the 20 triangles, saved as stl, but again problems with Cura. I loaded the stl into meshmagic, and converted to .obj file. It said the conversion would take a long time - it was in fact about a whole day, but it converted it successfully. I'm not sure if I want it to take nine hours printing at half size, with supports. On 15/02/2023 15:29, Michael Möller wrote: > ... but will it print ? > > On Wed, 15 Feb 2023 at 15:43, Father Horton <fatherhorton@gmail.com> > wrote: > > >
RW
Ray West
Sat, Feb 18, 2023 2:44 PM

Sliced OK in Cura, and printed OK at 40% size (about 70mm od) took
6hours. Tree supports removed fine.

On 17/02/2023 15:12, Raymond West wrote:

On 15/02/2023 15:29, Michael Möller wrote:

... but will it print ?

Cura got in a tangle with the slicing. I intended printing in vase
mode, but the edges of the petals have to printed before the centres,
for the bottom row, which means that support would be needed. I filled
in the 20 triangles, saved as stl, but again problems with Cura. I
loaded the stl into meshmagic, and converted to .obj file. It said the
conversion would take a long time - it was in fact about a whole day,
but it converted it successfully. I'm not sure if I want it to take
nine hours printing at half size, with supports.

On 15/02/2023 15:29, Michael Möller wrote:

... but will it print ?

On Wed, 15 Feb 2023 at 15:43, Father Horton fatherhorton@gmail.com
wrote:


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Sliced OK in Cura, and printed OK at 40% size (about 70mm od) took 6hours. Tree supports removed fine. On 17/02/2023 15:12, Raymond West wrote: > On 15/02/2023 15:29, Michael Möller wrote: >> ... but will it print ? >> >> > Cura got in a tangle with the slicing. I intended printing in vase > mode, but the edges of the petals have to printed before the centres, > for the bottom row, which means that support would be needed. I filled > in the 20 triangles, saved as stl, but again problems with Cura. I > loaded the stl into meshmagic, and converted to .obj file. It said the > conversion would take a long time - it was in fact about a whole day, > but it converted it successfully. I'm not sure if I want it to take > nine hours printing at half size, with supports. > > On 15/02/2023 15:29, Michael Möller wrote: >> ... but will it print ? >> >> On Wed, 15 Feb 2023 at 15:43, Father Horton <fatherhorton@gmail.com> >> wrote: >> >> >> > > _______________________________________________ > OpenSCAD mailing list > To unsubscribe send an email todiscuss-leave@lists.openscad.org
RW
Ray West
Thu, Mar 2, 2023 7:14 PM

Going back to the posts wrt the icosidodecahedron, and my object with
the tudor  roses, (approx. 15th Feb), I generated the object by
positioning the pentagons and triangles and more or less adjusting them
empirically. This gave a good enough result, but a tedious method if
wanting to change the thickness of walls, or sizes, etc.

I found that zooming in on the corners, that they did not necessarily
line up precisely, but good enough for 3d printing.

I've carried out a bit of trig, and attached the file to produce an
icosidodecahedron. You only need change the length of side and wall
thickness. It will print OK in vase mode, or as a thicker walled more
normal print, (difference a cylinder/whatever to put a hole in the top
if you want a container, or otherwise modify the modules) and I've
commented where you can add a pattern to the surfaces. If you make the
wall thickness less than about 0.00001, with a side of 10, then most
likely due to accumulated errors in calculations, it will not f6 render.

Going back to the posts wrt the icosidodecahedron, and my object with the tudor  roses, (approx. 15th Feb), I generated the object by positioning the pentagons and triangles and more or less adjusting them empirically. This gave a good enough result, but a tedious method if wanting to change the thickness of walls, or sizes, etc. I found that zooming in on the corners, that they did not necessarily line up precisely, but good enough for 3d printing. I've carried out a bit of trig, and attached the file to produce an icosidodecahedron. You only need change the length of side and wall thickness. It will print OK in vase mode, or as a thicker walled more normal print, (difference a cylinder/whatever to put a hole in the top if you want a container, or otherwise modify the modules) and I've commented where you can add a pattern to the surfaces. If you make the wall thickness less than about 0.00001, with a side of 10, then most likely due to accumulated errors in calculations, it will not f6 render.
AM
Adrian Mariano
Thu, Mar 2, 2023 9:45 PM

If you're interested in this or more complicated semi-regular solids you
might want to take a look at the polyhedra library in BOSL2,

https://github.com/revarbat/BOSL2/wiki/polyhedra.scad

Example 12 is the icosidodecahedron.  Its vertices are generated using a
one liner that calls some simple functions that apply symmetry operations.

On Thu, Mar 2, 2023 at 2:15 PM Ray West raywest@raywest.com wrote:

Going back to the posts wrt the icosidodecahedron, and my object with the
tudor  roses, (approx. 15th Feb), I generated the object by positioning the
pentagons and triangles and more or less adjusting them empirically. This
gave a good enough result, but a tedious method if wanting to change the
thickness of walls, or sizes, etc.

I found that zooming in on the corners, that they did not necessarily line
up precisely, but good enough for 3d printing.

I've carried out a bit of trig, and attached the file to produce an
icosidodecahedron. You only need change the length of side and wall
thickness. It will print OK in vase mode, or as a thicker walled more
normal print, (difference a cylinder/whatever to put a hole in the top if
you want a container, or otherwise modify the modules) and I've commented
where you can add a pattern to the surfaces. If you make the wall thickness
less than about 0.00001, with a side of 10, then most likely due to
accumulated errors in calculations, it will not f6 render.


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If you're interested in this or more complicated semi-regular solids you might want to take a look at the polyhedra library in BOSL2, https://github.com/revarbat/BOSL2/wiki/polyhedra.scad Example 12 is the icosidodecahedron. Its vertices are generated using a one liner that calls some simple functions that apply symmetry operations. On Thu, Mar 2, 2023 at 2:15 PM Ray West <raywest@raywest.com> wrote: > Going back to the posts wrt the icosidodecahedron, and my object with the > tudor roses, (approx. 15th Feb), I generated the object by positioning the > pentagons and triangles and more or less adjusting them empirically. This > gave a good enough result, but a tedious method if wanting to change the > thickness of walls, or sizes, etc. > > I found that zooming in on the corners, that they did not necessarily line > up precisely, but good enough for 3d printing. > > I've carried out a bit of trig, and attached the file to produce an > icosidodecahedron. You only need change the length of side and wall > thickness. It will print OK in vase mode, or as a thicker walled more > normal print, (difference a cylinder/whatever to put a hole in the top if > you want a container, or otherwise modify the modules) and I've commented > where you can add a pattern to the surfaces. If you make the wall thickness > less than about 0.00001, with a side of 10, then most likely due to > accumulated errors in calculations, it will not f6 render. > > > > _______________________________________________ > OpenSCAD mailing list > To unsubscribe send an email to discuss-leave@lists.openscad.org >