RW
Raymond West
Tue, May 14, 2024 11:04 AM
I seem to have a bit of a block... I have modified an stl, which has
left a lot of unwanted structure inside, which I do not need. I thought
I could difference it from a larger cube, say; then difference that
again, to recover the original shape, without all the internal
structure, but it still results in the unwanted internals remaining.
Anyone know of a free app that will return just the outer skin of an stl?
I seem to have a bit of a block... I have modified an stl, which has
left a lot of unwanted structure inside, which I do not need. I thought
I could difference it from a larger cube, say; then difference that
again, to recover the original shape, without all the internal
structure, but it still results in the unwanted internals remaining.
Anyone know of a free app that will return just the outer skin of an stl?
JB
Jon Bondy
Tue, May 14, 2024 11:40 AM
I am not sure exactly what is going on, but could you union an object
inside to turn the unwanted structures into a solid? Or difference that
same object with the original to turn the structures into empty space?
Or scale the thing down a bit and remove that from the original to get
an empty interior?
On 5/14/2024 7:04 AM, Raymond West via Discuss wrote:
I seem to have a bit of a block... I have modified an stl, which has
left a lot of unwanted structure inside, which I do not need. I
thought I could difference it from a larger cube, say; then difference
that again, to recover the original shape, without all the internal
structure, but it still results in the unwanted internals remaining.
Anyone know of a free app that will return just the outer skin of an stl?
OpenSCAD mailing list
To unsubscribe send an email to discuss-leave@lists.openscad.org
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I am not sure exactly what is going on, but could you union an object
inside to turn the unwanted structures into a solid? Or difference that
same object with the original to turn the structures into empty space?
Or scale the thing down a bit and remove that from the original to get
an empty interior?
On 5/14/2024 7:04 AM, Raymond West via Discuss wrote:
> I seem to have a bit of a block... I have modified an stl, which has
> left a lot of unwanted structure inside, which I do not need. I
> thought I could difference it from a larger cube, say; then difference
> that again, to recover the original shape, without all the internal
> structure, but it still results in the unwanted internals remaining.
> Anyone know of a free app that will return just the outer skin of an stl?
> _______________________________________________
> OpenSCAD mailing list
> To unsubscribe send an email to discuss-leave@lists.openscad.org
--
This email has been checked for viruses by AVG antivirus software.
www.avg.com
JJ
jon jonbondy.com
Tue, May 14, 2024 11:46 AM
Programs like Chitubox (a free resin slicing program) offer to Hollow
Out an STL.
On 5/14/2024 7:40 AM, Jon Bondy via Discuss wrote:
I am not sure exactly what is going on, but could you union an object
inside to turn the unwanted structures into a solid? Or difference
that same object with the original to turn the structures into empty
space?
Or scale the thing down a bit and remove that from the original to get
an empty interior?
On 5/14/2024 7:04 AM, Raymond West via Discuss wrote:
I seem to have a bit of a block... I have modified an stl, which has
left a lot of unwanted structure inside, which I do not need. I
thought I could difference it from a larger cube, say; then
difference that again, to recover the original shape, without all the
internal structure, but it still results in the unwanted internals
remaining. Anyone know of a free app that will return just the outer
skin of an stl?
OpenSCAD mailing list
To unsubscribe send an email to discuss-leave@lists.openscad.org
Programs like Chitubox (a free resin slicing program) offer to Hollow
Out an STL.
On 5/14/2024 7:40 AM, Jon Bondy via Discuss wrote:
> I am not sure exactly what is going on, but could you union an object
> inside to turn the unwanted structures into a solid? Or difference
> that same object with the original to turn the structures into empty
> space?
>
> Or scale the thing down a bit and remove that from the original to get
> an empty interior?
>
>
> On 5/14/2024 7:04 AM, Raymond West via Discuss wrote:
>> I seem to have a bit of a block... I have modified an stl, which has
>> left a lot of unwanted structure inside, which I do not need. I
>> thought I could difference it from a larger cube, say; then
>> difference that again, to recover the original shape, without all the
>> internal structure, but it still results in the unwanted internals
>> remaining. Anyone know of a free app that will return just the outer
>> skin of an stl?
>> _______________________________________________
>> OpenSCAD mailing list
>> To unsubscribe send an email to discuss-leave@lists.openscad.org
>
RW
Raymond West
Tue, May 14, 2024 12:35 PM
Thanks for the chitubox mention. I've installed it, and tried my stl
file. The resulting file was too many nodes. i can probably play with
the settings in chitubox.
On 14/05/2024 12:46, jon jonbondy.com via Discuss wrote:
Programs like Chitubox (a free resin slicing program) offer to Hollow
Out an STL.
On 5/14/2024 7:40 AM, Jon Bondy via Discuss wrote:
I am not sure exactly what is going on, but could you union an object
inside to turn the unwanted structures into a solid? Or difference
that same object with the original to turn the structures into empty
space?
Or scale the thing down a bit and remove that from the original to get
an empty interior?
On 5/14/2024 7:04 AM, Raymond West via Discuss wrote:
I seem to have a bit of a block... I have modified an stl, which has
left a lot of unwanted structure inside, which I do not need. I
thought I could difference it from a larger cube, say; then
difference that again, to recover the original shape, without all the
internal structure, but it still results in the unwanted internals
remaining. Anyone know of a free app that will return just the outer
skin of an stl?
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
Thanks for the chitubox mention. I've installed it, and tried my stl
file. The resulting file was too many nodes. i can probably play with
the settings in chitubox.
On 14/05/2024 12:46, jon jonbondy.com via Discuss wrote:
> Programs like Chitubox (a free resin slicing program) offer to Hollow
> Out an STL.
>
>
> On 5/14/2024 7:40 AM, Jon Bondy via Discuss wrote:
>> I am not sure exactly what is going on, but could you union an object
>> inside to turn the unwanted structures into a solid? Or difference
>> that same object with the original to turn the structures into empty
>> space?
>>
>> Or scale the thing down a bit and remove that from the original to get
>> an empty interior?
>>
>>
>> On 5/14/2024 7:04 AM, Raymond West via Discuss wrote:
>>> I seem to have a bit of a block... I have modified an stl, which has
>>> left a lot of unwanted structure inside, which I do not need. I
>>> thought I could difference it from a larger cube, say; then
>>> difference that again, to recover the original shape, without all the
>>> internal structure, but it still results in the unwanted internals
>>> remaining. Anyone know of a free app that will return just the outer
>>> skin of an stl?
>>> _______________________________________________
>>> 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
Tue, May 14, 2024 2:26 PM
I got nowhere with the chitubox settings, it treated the old parts of
the stl as walls, which I guess they were. I've cutout the tricky parts
of the stl, and differenced with cubes more precisely to remove the
detail that I did not want, and added back in the stl pieces. It would
have been quicker to print the original stl, measure the important
dimensions, and draw the thing in openscad, in the modified version.
On 14/05/2024 13:35, Raymond West via Discuss wrote:
Thanks for the chitubox mention. I've installed it, and tried my stl
file. The resulting file was too many nodes. i can probably play with
the settings in chitubox.
On 14/05/2024 12:46, jon jonbondy.com via Discuss wrote:
Programs like Chitubox (a free resin slicing program) offer to Hollow
Out an STL.
On 5/14/2024 7:40 AM, Jon Bondy via Discuss wrote:
I am not sure exactly what is going on, but could you union an object
inside to turn the unwanted structures into a solid? Or difference
that same object with the original to turn the structures into empty
space?
Or scale the thing down a bit and remove that from the original to get
an empty interior?
On 5/14/2024 7:04 AM, Raymond West via Discuss wrote:
I seem to have a bit of a block... I have modified an stl, which has
left a lot of unwanted structure inside, which I do not need. I
thought I could difference it from a larger cube, say; then
difference that again, to recover the original shape, without all the
internal structure, but it still results in the unwanted internals
remaining. Anyone know of a free app that will return just the outer
skin of an stl?
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
I got nowhere with the chitubox settings, it treated the old parts of
the stl as walls, which I guess they were. I've cutout the tricky parts
of the stl, and differenced with cubes more precisely to remove the
detail that I did not want, and added back in the stl pieces. It would
have been quicker to print the original stl, measure the important
dimensions, and draw the thing in openscad, in the modified version.
On 14/05/2024 13:35, Raymond West via Discuss wrote:
> Thanks for the chitubox mention. I've installed it, and tried my stl
> file. The resulting file was too many nodes. i can probably play with
> the settings in chitubox.
>
> On 14/05/2024 12:46, jon jonbondy.com via Discuss wrote:
>> Programs like Chitubox (a free resin slicing program) offer to Hollow
>> Out an STL.
>>
>>
>> On 5/14/2024 7:40 AM, Jon Bondy via Discuss wrote:
>>> I am not sure exactly what is going on, but could you union an object
>>> inside to turn the unwanted structures into a solid? Or difference
>>> that same object with the original to turn the structures into empty
>>> space?
>>>
>>> Or scale the thing down a bit and remove that from the original to get
>>> an empty interior?
>>>
>>>
>>> On 5/14/2024 7:04 AM, Raymond West via Discuss wrote:
>>>> I seem to have a bit of a block... I have modified an stl, which has
>>>> left a lot of unwanted structure inside, which I do not need. I
>>>> thought I could difference it from a larger cube, say; then
>>>> difference that again, to recover the original shape, without all the
>>>> internal structure, but it still results in the unwanted internals
>>>> remaining. Anyone know of a free app that will return just the outer
>>>> skin of an stl?
>>>> _______________________________________________
>>>> 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
L
larry
Tue, May 14, 2024 3:08 PM
On Tue, 2024-05-14 at 15:26 +0100, Raymond West via Discuss wrote:
I got nowhere with the chitubox settings, it treated the old parts of
the stl as walls, which I guess they were. I've cutout the tricky
parts of the stl, and differenced with cubes more precisely to remove
the detail that I did not want, and added back in the stl pieces. It
would have been quicker to print the original stl, measure the
important dimensions, and draw the thing in openscad, in the modified
version.
One technique I have used when trying to modify an existing STL that
has a problem that prevents the usual difference/union/intersection
mods is to recreate the parts of it I want to keep, by using '#' on the
new program and sizing/positioning everything to look for coincident
surfaces.
Of course, this technique gets a lot more difficult as the complexity
of the part increases.
On 14/05/2024 13:35, Raymond West via Discuss wrote:
Thanks for the chitubox mention. I've installed it, and tried my
stl
file. The resulting file was too many nodes. i can probably play
with
the settings in chitubox.
On 14/05/2024 12:46, jon jonbondy.com via Discuss wrote:
Programs like Chitubox (a free resin slicing program) offer to
Hollow
Out an STL.
On 5/14/2024 7:40 AM, Jon Bondy via Discuss wrote:
I am not sure exactly what is going on, but could you union an
object
inside to turn the unwanted structures into a solid? Or
difference
that same object with the original to turn the structures into
empty
space?
Or scale the thing down a bit and remove that from the original
to get
an empty interior?
On 5/14/2024 7:04 AM, Raymond West via Discuss wrote:
I seem to have a bit of a block... I have modified an stl,
which has
left a lot of unwanted structure inside, which I do not need.
I
thought I could difference it from a larger cube, say; then
difference that again, to recover the original shape, without
all the
internal structure, but it still results in the unwanted
internals
remaining. Anyone know of a free app that will return just
the outer
skin of an stl?
OpenSCAD mailing list
To unsubscribe send an email to
discuss-leave@lists.openscad.org
On Tue, 2024-05-14 at 15:26 +0100, Raymond West via Discuss wrote:
> I got nowhere with the chitubox settings, it treated the old parts of
> the stl as walls, which I guess they were. I've cutout the tricky
> parts of the stl, and differenced with cubes more precisely to remove
> the detail that I did not want, and added back in the stl pieces. It
> would have been quicker to print the original stl, measure the
> important dimensions, and draw the thing in openscad, in the modified
> version.
One technique I have used when trying to modify an existing STL that
has a problem that prevents the usual difference/union/intersection
mods is to recreate the parts of it I want to keep, by using '#' on the
new program and sizing/positioning everything to look for coincident
surfaces.
Of course, this technique gets a lot more difficult as the complexity
of the part increases.
> On 14/05/2024 13:35, Raymond West via Discuss wrote:
> > Thanks for the chitubox mention. I've installed it, and tried my
> > stl
> > file. The resulting file was too many nodes. i can probably play
> > with
> > the settings in chitubox.
> >
> > On 14/05/2024 12:46, jon jonbondy.com via Discuss wrote:
> > > Programs like Chitubox (a free resin slicing program) offer to
> > > Hollow
> > > Out an STL.
> > >
> > >
> > > On 5/14/2024 7:40 AM, Jon Bondy via Discuss wrote:
> > > > I am not sure exactly what is going on, but could you union an
> > > > object
> > > > inside to turn the unwanted structures into a solid? Or
> > > > difference
> > > > that same object with the original to turn the structures into
> > > > empty
> > > > space?
> > > >
> > > > Or scale the thing down a bit and remove that from the original
> > > > to get
> > > > an empty interior?
> > > >
> > > >
> > > > On 5/14/2024 7:04 AM, Raymond West via Discuss wrote:
> > > > > I seem to have a bit of a block... I have modified an stl,
> > > > > which has
> > > > > left a lot of unwanted structure inside, which I do not need.
> > > > > I
> > > > > thought I could difference it from a larger cube, say; then
> > > > > difference that again, to recover the original shape, without
> > > > > all the
> > > > > internal structure, but it still results in the unwanted
> > > > > internals
> > > > > remaining. Anyone know of a free app that will return just
> > > > > the outer
> > > > > skin of an stl?
> > > > > _______________________________________________
> > > > > 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
Tue, May 14, 2024 8:13 PM
Hi Larry, that is what I do. It is times like this that I'd appreciate
direct control of the position, by sliding around a mouse, whatever, as
compared to guessing positions,, and changing numbers
On 14/05/2024 16:08, larry via Discuss wrote:
On Tue, 2024-05-14 at 15:26 +0100, Raymond West via Discuss wrote:
I got nowhere with the chitubox settings, it treated the old parts of
the stl as walls, which I guess they were. I've cutout the tricky
parts of the stl, and differenced with cubes more precisely to remove
the detail that I did not want, and added back in the stl pieces. It
would have been quicker to print the original stl, measure the
important dimensions, and draw the thing in openscad, in the modified
version.
One technique I have used when trying to modify an existing STL that
has a problem that prevents the usual difference/union/intersection
mods is to recreate the parts of it I want to keep, by using '#' on the
new program and sizing/positioning everything to look for coincident
surfaces.
Of course, this technique gets a lot more difficult as the complexity
of the part increases.
On 14/05/2024 13:35, Raymond West via Discuss wrote:
Thanks for the chitubox mention. I've installed it, and tried my
stl
file. The resulting file was too many nodes. i can probably play
with
the settings in chitubox.
On 14/05/2024 12:46, jon jonbondy.com via Discuss wrote:
Programs like Chitubox (a free resin slicing program) offer to
Hollow
Out an STL.
On 5/14/2024 7:40 AM, Jon Bondy via Discuss wrote:
I am not sure exactly what is going on, but could you union an
object
inside to turn the unwanted structures into a solid? Or
difference
that same object with the original to turn the structures into
empty
space?
Or scale the thing down a bit and remove that from the original
to get
an empty interior?
On 5/14/2024 7:04 AM, Raymond West via Discuss wrote:
I seem to have a bit of a block... I have modified an stl,
which has
left a lot of unwanted structure inside, which I do not need.
I
thought I could difference it from a larger cube, say; then
difference that again, to recover the original shape, without
all the
internal structure, but it still results in the unwanted
internals
remaining. Anyone know of a free app that will return just
the outer
skin of an stl?
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
OpenSCAD mailing list
To unsubscribe send an email to discuss-leave@lists.openscad.org
Hi Larry, that is what I do. It is times like this that I'd appreciate
direct control of the position, by sliding around a mouse, whatever, as
compared to guessing positions,, and changing numbers
On 14/05/2024 16:08, larry via Discuss wrote:
> On Tue, 2024-05-14 at 15:26 +0100, Raymond West via Discuss wrote:
>> I got nowhere with the chitubox settings, it treated the old parts of
>> the stl as walls, which I guess they were. I've cutout the tricky
>> parts of the stl, and differenced with cubes more precisely to remove
>> the detail that I did not want, and added back in the stl pieces. It
>> would have been quicker to print the original stl, measure the
>> important dimensions, and draw the thing in openscad, in the modified
>> version.
> One technique I have used when trying to modify an existing STL that
> has a problem that prevents the usual difference/union/intersection
> mods is to recreate the parts of it I want to keep, by using '#' on the
> new program and sizing/positioning everything to look for coincident
> surfaces.
>
> Of course, this technique gets a lot more difficult as the complexity
> of the part increases.
>
>> On 14/05/2024 13:35, Raymond West via Discuss wrote:
>>> Thanks for the chitubox mention. I've installed it, and tried my
>>> stl
>>> file. The resulting file was too many nodes. i can probably play
>>> with
>>> the settings in chitubox.
>>>
>>> On 14/05/2024 12:46, jon jonbondy.com via Discuss wrote:
>>>> Programs like Chitubox (a free resin slicing program) offer to
>>>> Hollow
>>>> Out an STL.
>>>>
>>>>
>>>> On 5/14/2024 7:40 AM, Jon Bondy via Discuss wrote:
>>>>> I am not sure exactly what is going on, but could you union an
>>>>> object
>>>>> inside to turn the unwanted structures into a solid? Or
>>>>> difference
>>>>> that same object with the original to turn the structures into
>>>>> empty
>>>>> space?
>>>>>
>>>>> Or scale the thing down a bit and remove that from the original
>>>>> to get
>>>>> an empty interior?
>>>>>
>>>>>
>>>>> On 5/14/2024 7:04 AM, Raymond West via Discuss wrote:
>>>>>> I seem to have a bit of a block... I have modified an stl,
>>>>>> which has
>>>>>> left a lot of unwanted structure inside, which I do not need.
>>>>>> I
>>>>>> thought I could difference it from a larger cube, say; then
>>>>>> difference that again, to recover the original shape, without
>>>>>> all the
>>>>>> internal structure, but it still results in the unwanted
>>>>>> internals
>>>>>> remaining. Anyone know of a free app that will return just
>>>>>> the outer
>>>>>> skin of an stl?
>>>>>> _______________________________________________
>>>>>> 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
>>
> _______________________________________________
> OpenSCAD mailing list
> To unsubscribe send an email to discuss-leave@lists.openscad.org
