Questions tagged [openscad]
Questions related to the use of the program OpenSCAD and how it relates to creating parts for 3D printing
49
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Why do I fail to import the SVG file from this site?
I'm trying to import a David Smith's tiling background image in openSCAD, but it fails miserably and I have no idea about why it fails.
Here is what I did:
I went to Craig S. Kaplan's page about ...
- 171
0
votes
1
answer
42
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Can I use convexity in OpenSCAD to fix artifacts in the preview?
If I do a simple boolean difference where the dimensions of two shapes match there are visual artifacts in the preview. For example:
...
- 1,403
2
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1
answer
63
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OpenSCAD hole is closed on the inside when in slicer
Hi I made a donut with a hole on the external side, but when I slice it the internal side of the cylinder is closed, this resul in a closed-hole.I will be glad if any one can explain me where is the ...
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39
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OpenSCAD import dpi setting
I'm importing an svg and extruding it. Here is the code:
translate([25,4,5]) rotate([90,0,0])
linear_extrude(height=5)
import("logo.svg",dpi=25.4);
...
- 111
2
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2
answers
450
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How to add a 2x2 mm hole to a SCAD file?
I'm trying to modify this code to create a small 2 mm x 2 mm hole on the short side of the box (to fit 2 wires coming out of a battery):
...
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1
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1
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274
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Get 2D object from a 3D object's face in OpenSCAD
Basically I am working on automating the generation of upper and lower shells of device enclosures. These enclosures have a rather irregular shape that was generated e.g. with ...
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2
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1
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280
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How to combine an .svg and a basic object in Openscad
As stated in the question I am trying to combine a drawing I have in .svg format with a simple cylinder in order to make a printable medal. I have tried the following code :
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I am getting an error when trying to slice an STL object into multiple vector files
I am following the tutorial Slicing a 3D object to SVG.
My code looks like so:
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1
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1
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311
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Conical scaling in OpenSCAD or Blender
Looking for a way to taper an imported STL model off toward the bottom (or top, if easier).
The same transformation would turn a straight cylinder into a cone.
The intent is to make a vase like the ...
- 221
4
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1
answer
140
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Cut a Möbius strip in four parts with interlocking
I'm a beginner with OpenSCAD. I use to work with Rhino, but I have no more license and the new Fablab I'm working with uses OpenSCAD, so I'm learning OpenSCAD now.
The picture below shows what I want ...
4
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1
answer
1k
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OpenSCAD ERROR: Current top level object is not a 2D object
I have created a Mengersponge in OpenScad which is a 3D object. I wanted to get an SVG export from it for the laser cutter but I receive this error:"Current top level object is not a 2D object.&...
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2
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2k
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Print Object Without Top Layer But With Intermediate Layers
I'm using PrusaSlicer with OpenSCAD. I want to print a solid object with a notch in it, without top layers, but with infill and solid walls for the notch, like this...
I can set the number of top ...
- 131
3
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3
answers
2k
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Can OpenSCAD bend text (project it on curved surface)?
I want to put relief text on curved surface but can't find way to do that in OpenSCAD. I'm aware it's possible to bend text in Blender and then import stl, but I ...
- 133
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986
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OpenSCAD can't render union of two polyhedrons, but can preview just fine
I am running into what honestly seems like a bug in OpenSCAD, but I can't believe that something so simple could reveal a bug. I am trying to render the following code:
...
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2
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373
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Is shell scripting possible with OpenSCAD?
I literally just started OpenSCAD today, so please take it easy on me, but is shell scripting possible with OpenSCAD? as in, to write a script in the OpenSCAD syntax, and have it output images, or ...
- 113
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1
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480
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Offline CAD software for beginners
I have used OpenSCAD to design a couple of basic things. However, I'm incredibly frustrated by the current state of CAD software: it's all browser based, or requires an internet connection. Or has a ...
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201
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What is the operator precedence in OpenSCAD?
OpenSCAD User Manual's section on operators does not mention precedence. Quick Web searches found nothing. I assume the usual order of exponentiation, then multiplication, then addition does hold, but ...
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107
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Creating a hole into which an object can be pushed
I have an object and want to construct a part that the object could be slotted into along the Y-axis.
If I just subtract the object, I will end up with a hollow that is bigger on the inside so it ...
- 101
2
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1
answer
285
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Vary line with Z-axis for imported SVG file
I have an SVG file of a line drawing. When I import it into Tinkercad it generates a 3D version with the width of the lines remaining constant along the Z-axis (as expected). I would like to ...
- 133
5
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1
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509
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Why does OpenSCAD fail to cut holes in polygon sides that are exactly the width of the wall?
I'm trying to make a frame for a lithograph that I plan to 3D print for my wife for Mother's Day. I typically will have my differences be exactly the right size (rather than oversizing it for the ...
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1
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3k
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OpenSCAD render (F6) fails with "ERROR: CGAL error in CGAL_Nef_polyhedron3()"
I built a model and it previewed correctly. When rendering for STL export (F6), I got an assertion error:
ERROR: CGAL error in CGAL_Nef_polyhedron3(): CGAL ERROR: assertion
violation! Expr: e->...
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3
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1k
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Is there an easy way to add rounded edges to semicircle in OpenSCAD?
I've put together a flashlight mount for a camera coldshoe in OpenSCAD. I originally modeled it in FreeCAD and it was easy to round the edges of the clamp with a fillet and that makes it a little ...
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1k
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How to combine difference with concatinate object [closed]
The following creates an object with two slots:
...
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4
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7k
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OpenSCAD linear_extrude from multiple path svg import
In OpenSCAD, I am trying to make a linear_extrude on a shape imported from an svg. The svg file contains multiple path. I would like to scale each path separately. I have tried the following code, but ...
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3
answers
1k
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Export STL from OpenSCAD command line, calling module within script?
Given a .SCAD file which contains some modules, how can I execute one of those modules from the command line?
example.scad
module One() { ... }
module Two() { ... }
...
- 155
2
votes
2
answers
947
views
OpenSCAD not rendering polyhedron
I'm trying to subtract a polyhedron from a cube, but it is not working (the cube remains solid). However, I can see the cut-out poly in preview mode (but not after a full render).
Preview -- poly ...
- 155
2
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1
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596
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OpenSCAD / FreeCAD splitting, hollowing and threading model
I had a thought the other day that it's 100 % waste to have either a solid or hollow 3D-printed model in relation to utilizing the space inside of it for different modules, e.g. secret compartments, ...
- 21
1
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1
answer
1k
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How to I assign an imported STl file to a variable, polygon, or otherwise manipulate it?
I have 2 STL files that I want to chop, rotate, and glue together. If I printed them and literally chopped and glued them together, I would be done. Very simple operations.
I imported them both ...
- 1,205
0
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3
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5k
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.STEP/.F3D to .SCAD file?
I work with Fusion360 for designing lots of things. Recently I learned how to work with parameters that I can easily modify all at once, allowing to pretty much make easily customizable pieces.
Now, ...
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2
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3
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214
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Creating a two part label for storage boxes
I want to create two piece labels for storage containers. The main piece would be the “badge” which would have text cut out of it (e.g. “Paint”, “Electrical” etc.). The second piece would be a ...
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4
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1
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594
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Spiral bevel gears in OpenSCAD
I'm trying to design a "Lifting Table" in OpenSCAD which will consist of 2 concentric cylinders. On the inner cylinder I plan to mount 3 un-powered bevel gears vertically plus a 4th powered one each ...
3
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3
answers
2k
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Is it possible extrude faces along normals individually in OpenSCAD?
For the geometry I am making, I want to extrude each face individually along its normal.
This is a standard procedure in 3D modeling software like Blender; see Example 3 here.
Is this possible in ...
- 131
4
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1
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199
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Streamlining OpenSCAD Code
Is there an efficient approach to discovering what is extraneous ("dead" or "unused") code in OpenSCAD to promote the learning process?
I am making progress by using working examples of code; however,...
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2
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551
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OpenSCAD weirdness with imported STL
I've tried to remix this model: https://www.thingiverse.com/thing:90933 (Bauhaus chess set) by scaling it down and inserting little magnet holes into the pieces' underside. My SCAD file looks as ...
- 113
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3
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2k
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Creating "pie slice" in OpenSCAD?
When making a cylinder, sometimes I need to only take a pie slice. I'm currently using this neat trick to make pie slices for angles under 90 degrees. However, I have need of a few angles over 90 but ...
- 273
2
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1
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433
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Handing OpenSCAD module parameters derived from other variables
I'm new to OpenSCAD, but I can only get default parameters working for simple values.
I'm wondering if there is any way to achieve the following, where I have some parameters available to the ...
- 273
8
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1
answer
8k
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Is there an easy way to split models in OpenSCAD?
I'm wondering if I can take one OpenSCAD object, and cut/splice/split it into two different objects that can then be manipulated independently?
One approach is to duplicate the object, difference it ...
- 273
2
votes
1
answer
127
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Find OpenSCAD code from image
I have an OpenSCAD model which I am looking at in the application, code to the left and the rendering to the right.
Am trying to modify a certain piece, and have commented out all the commands that I ...
- 507
12
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1
answer
2k
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How to prevent z-fighting in OpenSCAD?
Z-fighting is a 3D rendering artifact of coplanar surfaces (means, of triangles located in exactly the same plane and overlapping each other).
It can happen in OpenSCAD's preview mode when doing a <...
- 403
4
votes
2
answers
185
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Why is 2 / -2 / 2 equal to -2 in OpenSCAD? (Mathematical Order of Operations)
Recently I have been doing more complicated math in OpenSCAD and I have run into something that I find strange. Take a simple math expression: 2 / 2 / 2. By any ...
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vote
1
answer
3k
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OpenSCAD "not valid 2-manifold" useful information
OpenSCAD suggests that "object may not be a valid 2-manifold" but it looks perfectly fine in OpenSCAD and in Meshlab.
Have looked through the file several times, and cannot find any point or line ...
- 507
3
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2
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923
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OpenSCAD 2018 Command line
First, I'm using Linux Mint 18.3 (Sylvia). Until now, I've been using OpenSCAD with the GUI and never experienced issues. Now I try to start OpenSCAD from the command line, but it always opens an ...
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0
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276
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OpenSCAD editor font is unreadable [closed]
I am a new OpenSCAD user. My screen editor window is using a very strange font that I cannot read. How can I fix it? I just installed OpenSCAD on my Linux Manjaro computer.
This is a screen shot of ...
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1
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2
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3k
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How to specify rotation origin in openscad [closed]
OpenSCAD has rotate function which rotates the body around its origin axis.
Is there a way to specify an arbitrary axis?
For example, this rotates a cylinder ...
- 111
5
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1
answer
3k
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OpenSCAD library for empty space/holes
I am working on a design in OpenSCAD, and need (would want) two things that seem tedious to hand-code:
A pattern of holes in a wall, for less weight/material. Could be round holes or some geometric ...
- 507
9
votes
1
answer
2k
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Can the `render` function be used to speed up rendering?
I am designing a moderately complicated piece in OpenScad.
It renders fast enough in preview mode (1s).
But when i do a full render so I can export to STL,
it takes ages (In the 10s of minutes)
I ...
8
votes
3
answers
786
views
Are there any "best" or at least "common" practices to handle allowances in OpenSCAD code?
I'm designing a few mechanisms with OpenSCAD, and one of the parameters that need adjustment between printers/filaments is allowances between pieces that need to be assembled together (for example, if ...
- 4,735
4
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2
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379
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How to remove internal part of a hex grid
I am modelling a few cut templates to be used on an hexagonal grid (honeycomb) material using OpenSCAD. Basically, from a reference cell, I need to select all cells that are within a given range and ...
- 4,735
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3
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2k
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Is there a technique for turning an image into a 2d model?
The overall goal is to create a print of the liberty bell. No clapper is needed. The support beam is not needed. I am just looking to mimic the outside shape of the bell. After an application of ...
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