<![CDATA[Holes when using star primitive with extrusion and boolean operation]]>Hello, I made a little jscad script to make a star using the dedicated primitive, it went well, but unfortunately the model has holes and they appear on all combinations that my script can do :

  • star + rectangular_extrude
  • star + rectangular_extrude + linear_extrude + union

It might is due to T junction problem.

Capture d’écran de 2020-12-23 16-46-47.png

]]>https://openjscad.nodebb.com/topic/210/holes-when-using-star-primitive-with-extrusion-and-boolean-operationRSS for NodeMon, 18 May 2026 03:20:09 GMTWed, 23 Dec 2020 16:02:38 GMT60<![CDATA[Reply to Holes when using star primitive with extrusion and boolean operation on Wed, 30 Dec 2020 13:42:02 GMT]]>@z3dev I already tried to use a branch locally but didn't managed to make it work, so I stick to web version at https://jscad.xyz/

]]>https://openjscad.nodebb.com/post/588https://openjscad.nodebb.com/post/588Wed, 30 Dec 2020 13:42:02 GMT<![CDATA[Reply to Holes when using star primitive with extrusion and boolean operation on Wed, 30 Dec 2020 07:01:12 GMT]]>@gilboonet thanks again.

yeah. it looks like a t-junction issue again. if you have the time then please try the V2 branch called ' v2-fix-t-junctions', as some feedback on the changes would be good.

]]>https://openjscad.nodebb.com/post/587https://openjscad.nodebb.com/post/587Wed, 30 Dec 2020 07:01:12 GMT<![CDATA[Reply to Holes when using star primitive with extrusion and boolean operation on Tue, 29 Dec 2020 18:29:59 GMT]]>I rewrote it with v1 and the star rendered has no holes. I avoided rectangular_extrude because I wasn't able to use it without roundends. And I need to find a way to compute star width using a % from the outerpath (I form the star polygon with the outerpath minus itself scaled (0.8) for the moment.
Capture d’écran de 2020-12-29 19-15-45.png

]]>https://openjscad.nodebb.com/post/586https://openjscad.nodebb.com/post/586Tue, 29 Dec 2020 18:29:59 GMT