teepee changed the topic of #openscad to: OpenSCAD - The Programmers Solid 3D CAD Modeller | This channel is logged! | Website: http://www.openscad.org/ | FAQ: https://goo.gl/pcT7y3 | Request features or report bugs: https://goo.gl/lj0JRI | Tutorial: https://bit.ly/37P6z0B | Books: https://bit.ly/3xlLcQq | FOSDEM 2020: https://bit.ly/35xZGy6 | Logs: https://libera.irclog.whitequark.org/openscad | don't ask to ask
<JakeSays> i'd love to have a metal printer
<Jack21> last time i read about PPS https://en.wikipedia.org/wiki/Polyphenylene_sulfide  which is a semiconductor you can print with
<Jack21> these metal printer prints are expensive as you need a chamber without oxygen  (and all these powder are annoying to work with)
<JakeSays> there are filament based 3d printers
<Jack21> but there is a sinter printer that is more or less usable by privat
<JakeSays> the filament ones are basically a fancy tig welder
<Jack21> ah those .. there are also some you can use with a normal FDM printer
<JakeSays> reading up on PEEK - that does sound like a great plastic
<JakeSays> yeah but those are just metal infused plastic, like carbon fiber and wood
<Jack21> 600€ per spool (500g)
<JakeSays> hmm. that's almost 3x the cost of my printer
<Jack21> and you print at 300+
<Jack21> °C
<JakeSays> i can get it on amazon for $295. damn.
<Jack21>  but there are filaments with binder and metal - you need to sinter them and get a full metal part (need a kiln or service)
<JakeSays> yeah actually i read about those not too long ago
<JakeSays> someone was talking up their metal printer as democratizing metal printing. iirc the base price for the printer was something like $12k.
<JakeSays> we have different definitions of democratizing
<Jack21> but i would invest in a printer that can print 400°C and use PEEK or other  as from the data this is better than metal
<JakeSays> hah. not at $600/kg
<JakeSays> interesting. someone has a ruby tipped nozzle for PEEK
<Jack21>  if you compare the print price for metal there is not much difference to peek prints
<Jack21> it is when you print very big parts
<JakeSays> lol glow in the dark filament would be fun
<Jack21> its very abrasive
<Jack21> had some from makerbot that stopped working after some years  (while my phosphorescent pigments still glow)
<Jack21> some university made a glas printer - very nice
<Jack21> also a liquid sugar printer  (not powder)
<Jack21> aren't these fantastic times to be alive
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<JakeSays> i remember seeing something about the sugar printer. i thought that'd make an excellent support material
<InPhase> Sounds sweet.
<JakeSays> InPhase: lol
<Jack21> after a while your workplace is probably very sticky
<JakeSays> so i have an stl file that contains the output from https://gist.github.com/JakeSays/377b1e8e21200fe1e48f71677169d447.
<JakeSays> somehow i need to extract just the 2d outer outline
<JakeSays> any ideas y'all?
<Jack21> why you dont make it 2D ?
<Jack21> after render you have a polygon with only that outline
<Jack21> or do you want an outline ?
<Jack21> which works also in 2D with difference and offset
<Jack21> i mean a rim  a polygon with two paths
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<JakeSays> well, i need the points, not the actual object.
<JakeSays> i need to draw several objects along the perimeter of the 8
<JakeSays> i'm trying to figure out a way of automating it
<Jack21> you can't get the points within scad  but exporting it  and the svg dxf  has the points .. you can then paste as array
<Jack21> before  text was  a module some made text modules with the points - so you can take one of these "fonts" and you have the points
<JakeSays> yeah i was exporting the points as an stl file
<Jack21> but that is 3D .. use svg
<JakeSays> ahh
<JakeSays> hmm
<JakeSays> ok i'll try that
<Jack21> i wonder if it wouldn't be much work to create a new module/function that  has  the points and make them available as variable vector - would be a nice feature
<dalias> it would be much work and it's very contrary to the data model
<JakeSays> actually someone just wrote one
<JakeSays> render() as a function
<JakeSays> dalias: how is it contrary to the data model?
<dalias> i dont know the right words to describe it, but the data model is a CSG tree of abstract objects
<JakeSays> ok well if i draw an object using point i got from somewhere else, it still fits that model just fine
<JakeSays> *points
<JakeSays> Jack21: lol svg worked perfectly. thanks!
<JakeSays> dalias: it's no different than importing an stl file
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<dalias> i'm too tired to explain why it is
<dalias> but it absolutely is different
<JakeSays> dalias: it's not different. the end result ends up being an abstract object in the CSG tree
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<dalias> you're missing the point
<dalias> and again i'm not in the mood to explain it to you
<Jack21> if i can export the points into a file and import them - it shouldn't be difficult to do this without saving the file
<gbruno> [github] kintel pushed 1 modifications (Enable individual libs for debugging). https://github.com/openscad/openscad/commit/39a0c39762d792308f6c89ba340d750d88c97246
<gbruno> [github] kintel pushed 1 modifications (Enable individual libs for debugging). https://github.com/openscad/openscad/commit/c5a66579636d8e1b3e2d8b91dce78be747cc3aa1
<gbruno> [github] kintel pushed 1 modifications (Enable individual libs for debugging). https://github.com/openscad/openscad/commit/b42ba35b19a0311a3e03b57e395c4020c73e2c51
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<InPhase> JakeSays: Yeah, if you can get that 3956 PR compiled that might be the most direct route to an internal solution to your particular problem. Just note it's under active development and might change in breaking ways yet.
<JakeSays> InPhase: i'll take a look at it tomorow
<InPhase> Although there's no shame in a scripted multi-openscad-pass command line path to a solution.
<gbruno> [github] kintel pushed 1 modifications (Enable individual libs for debugging). https://github.com/openscad/openscad/commit/11f07f3c6ac994e1d174c5aa00708cadb3b8c6f9
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<gbruno> [github] kintel pushed 1 modifications (Enable individual libs for debugging). https://github.com/openscad/openscad/commit/d8443aa6164fce21adc27793792347cb7551a29e
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<gbruno> [github] kintel pushed 1 modifications (Enable individual libs for debugging). https://github.com/openscad/openscad/commit/66b60a6cb32eca0cde960106aefa7213723ca4ad
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<Guest9999> Hello, is there a way to get outer dimensions of some complex object? At least as echo to console? I fiddle with some parametric stuff and need to debug my final dimensions.
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<Jack21> guest9999 if your object was created by CSG operations then you can't see the points except exporting as 3mf and unzip the file
<Jack21> however adding a #%cube() with the dimensions you want can help to see if it matches with your object
<erickrdini> hi there
<erickrdini> https://bpa.st/7TBA
<erickrdini> Maybe anyone could me help find the rotation for number 8 in this code plz!
<erickrdini> and i was thinking to do the block solid
<erickrdini> i found a previous solution, sorry to bother you guys
<erickrdini> :-)
<erickrdini> But do you guys think is better put the block solid?
<erickrdini> anyone here?
<erickrdini> jack21 are you there?
<Jack21> jup
<Jack21> just a moment
<erickrdini> ok
<Jack21> erickrdini:  #translate([-(17/40)*cubeHeight, 0, 0]) rotate([180, -90, 180]) number("8");
<Jack21> #translate([-(17/40)*cubeHeight, 0, 0]) rotate([180, 90, 0]) number("8");  // if you want it in same orientation as 2 and 6
<Jack21> a solid cube would be easier to print, else you need supports and post processing to remove them
<erickrdini> yes i did
<erickrdini> tks
<Jack21> having multipe rotation with different angles in one rotate can be confusing use rotate(angle,[0,0,1]) and chain them up
<erickrdini> but what if i want it to be hollow inside?
<Jack21> then you have to use supports .. your printer can't deposit material in mid air
<Jack21> or printing each side flat and glue together
<Jack21> or fold
<erickrdini> alright
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<erickrdini> i little help here how can i do the number in the block more deeper?
<erickrdini> https://bpa.st/6KAA
<erickrdini> i want put the number more deeper in the block
<erickrdini> i want to*
<erickrdini> jack21 Hello
<erickrdini> Jack21 Hi!
<erickrdini> :-)
<Jack21> erickrdini you don't use variables so you have to change every single number
<Jack21> but you can go into the number module and move (translate([0,0,-.5]))the linear_extrude a little in Z direction
<Jack21> also remove the 17/35  use the sides as reference  translate([-cubeHeight/2, 0, 0]) rotate([0, 90, 180]) number("3");
<Jack21> so lowering the number modules linear_extrude  by x will impress by x
<Jack21> the font variable needs to be in ""
<erickrdini> looks better
<erickrdini> tks
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<gbruno> [github] kintel pushed 1 modifications (Build all libs). https://github.com/openscad/openscad/commit/0546096c29b3a3b727e4bbac854437f5275d07db
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<gbruno> [github] kintel pushed 1 modifications (Build OpenSCAD). https://github.com/openscad/openscad/commit/b6bc49366b371922eb4b6cabde4df8118d944d8d
<gbruno> [github] kintel pushed 1 modifications (Add back libzip). https://github.com/openscad/openscad/commit/25855f6c496824a1089717a1a43066bc9df6f119
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<gbruno> [github] kintel pushed 1 modifications (Sanity check binary). https://github.com/openscad/openscad/commit/6921f2fb62d2b052b74e79ceb4d4333a36411289
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* JakeSays yawns
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