[OpenSCAD] Fusion360 and OpenSCAD

Carsten Arnholm arnholm at arnholm.org
Sat Oct 8 04:41:40 EDT 2016

Referring to the polygon builder at http://daid.eu/~daid/3d/

I figured out how to use it, it is quite easy.

To draw a polygon, press the green plus button and click in the drawing 
area repeatedly to lay out the polygon points.

To remove a point, press the red minus button and click one of the 
points to make it go away.

To change the position of a point, press the mouse cursor button, then 
point to one of the points drawn, press and hold left mouse button 
(point turns red) and drag the point to the new location.

Making rounded corners. Let us assume you have a polygon with 4 corners. 
To make one of them 'round', click it in the drawing (it turns red) then 
press the button showing a curve with 3 point symbols (under the green 
plus). Two "ghost points" will appear near the selected drawing point 
and the curve will be distorted near that point. To change the shape of 
the distortion, drag these "ghost points" (presumably the Bezier 
handles) to new locations. To get a nice smooth shape the Bezier points 
and the original point should be roughly on a straight tangent line 
relative to the curve.

Screenshot 1 (polygon builder)

Obviously, the idea is that the "OpenSCAD code" window contains code for 
an extended polygon producing the same shape, you just cut/paste the 
generated code into OpenSCAD

Screenshot 2 (OpenSCAD)

Carsten Arnholm

On 08. okt. 2016 03:02, Rob Ward wrote:
> It looks very interesting, but I too find it of no use.  Is there a
> drawing package that is has been modeled on (that I obviously have never
> used before) that might explain how to use it.  The programmer seem
> assume a lot of prior knowledge, and experience. It just appears to
> randomly add points and lines once the initial line is drawn. Is it just
> a proof of principle, not a finished product?  Nice .js work all the same.
> Rob
> On 07/10/16 04:30, jon wrote:
>> Thank you, Torsten, but this "tool" is not documented sufficiently for
>> me to even understand where to start.
>> Jon
>> On 10/6/2016 1:05 PM, Torsten Paul wrote:
>>> On 10/06/2016 01:49 PM, jon wrote:
>>>> Or a tool that allows you to position Bezier handles
>>>> which are then converted to smoothed lines and then
>>>> imported into OpenSCAD
>>> Not integrated, but still nice way to just draw polygon:
>>> http://daid.eu/~daid/3d/
>>> source: https://github.com/daid/OpenSCAD-polygon-editor
>>> ciao,
>>>    Torsten.
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