<retrosenator>
well for example an operation could be "weathering"
<retrosenator>
which would "sandblast" the part from a specific direction with various parameters
<retrosenator>
and wear away at it
<J1A84>
i know a terrain modeler in scad that does that
<retrosenator>
another operation could be to turn the object to "near-liquid" with a specific surface tension and apply a force then "freeze" to it's new shape
<retrosenator>
this is all done in a single line in the script
<J1A84>
the software has no information about the mesh except its points
<retrosenator>
and it generates openscad which eventually produces the desired model
<retrosenator>
even if many invokations of both openscad and blender are needed
<retrosenator>
but yeah, the first sphere, gets put in blender, and back into a temporary stl file which is imported into openscad and combined with the second translated sphere
<J1A84>
if i send you an stl it will be impossible for you to add a tangential object in openSCAD
<J1A84>
(you can use resize and a big cube)
<retrosenator>
I see, sure
<J1A84>
while mesh based programs can align a mesh on another mesh
<retrosenator>
i think it comes down to operations.. mesh based will break down faster and require more computations
<J1A84>
also if i have a spherical shell a mesh based program can not change the size without changing the thickness .. while it is no problem for CSG or other CAD
<J1A84>
resize renders an object to change it so it knows its bounding box
<retrosenator>
ok so its the wrong operation
<retrosenator>
how do you increase the size without the thickness?
<J1A84>
how do you create a spherical shell without knowing the thickness?
<retrosenator>
heh
<retrosenator>
i dont know what the difference is then
<retrosenator>
it all starts in a script either way
<J1A84>
the script is not a mesh
<retrosenator>
it ends up as one
<retrosenator>
openscad could be implemented to work on meshes as well and not use csg
<retrosenator>
just using one of various tesselation algorithms for operations
<J1A84>
if you bake bread you have no access to its ingredients
<J1A84>
just show me a case where it would make sense to import a mesh into SCAD when you created it before in blender - so what do you think scad can do that can't be done in blender?
<J1A84>
maybe you confuse "doesn't make sense" with " is possible to "
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<retrosenator>
minkowski comes to mind lol
<retrosenator>
as something blender doesnt have
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<J1A84>
haha yeah do that on a complex mesh
<J1A84>
but blender has much better tools for that result
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<J1A84>
Rendering finished.
<J1A84>
EXPORT-ERROR: Can't add triangle to 3MF model.
<J1A84>
great i can save an STL but not an 3mf .. and it tells me that the export is finished with a 0kb 3mf File
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<teepee>
what version is that?
<teepee>
I thought the issue was fixed in the nightly, that it at least gives the correct info
<teepee>
still strange that it fails
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<J1A84>
2022.05.04
<J1A84>
i think the fix was if the 3mf couldn't be written .. this time is is just empty (probably something with lazy union)
<teepee>
hmm
<teepee>
but why :=
<J1A84>
in that file are two objects (top level) and if i remove the second the error is gone .. i can export the second and the first but not at the same time
<J1A84>
maybe too many triangles the file is 10mb 3mf (or ~ 40mb stl) the second object is just a number with maybe 20 vertices
<teepee>
so 2 buttons were unused, but now the raspi usually running youtube for music got an MQTT script so the remaining 2 buttons control the audio volume :)
<teepee>
I guess I need to print a second one now
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<J1A84>
sounds pretty cool
<teepee>
yeah, and best thing, no cloud required
<J1A84>
is it working with KNX ?
<J1A84>
well you need KNX adapter hardware for sure