Trivalik

I have another with same error. I add "+2" on cube function to cover whole body in polygone. ``` breiteKleinesQuadrat=1.55; hoeheKleinesQuadrat=2.4; breiteGrossesQuadrat=2.67; hoeheGrossesQuadrat=2.8; laengeGrossesQuadrat=9.9; laenge=30.4; laengeNase=3.7; hoeheNase=6.35; hoeheNasenEnde=1.44; schraegeNase=0.9; NasenspitzenBreiten=1.45;...

thanks, that helped me alot. Seems I just not read the right lines in the wikibook to find it :-).

I run again in this issue, but just with difference from an STL file:  STL import alone works fine with rendering. But if I try to remove a cube...

Does that mean my STL file is broken? Or does that mean the import of STL will never work with difference and union?

I used a online repair tool and it found something, but still same result. Code: ``` difference() { import("C:/.../Proximity_Sensor_D18_Holder_fixed.stl", convexity=3); translate([0,-100,-31/*nach unten*/])cube([100,120,100]); } ``` STL: Proximity_Sensor_D18_Holder.stl from https://www.thingiverse.com/thing:2001681/files

I got a fixed model from online page https://formware.co/OnlineStlRepair but still same result. Thats why I ask whether difference form STL is possible or not.

here the fixed STL file: [Proximity_Sensor_D18_Holder_fixed.zip](https://github.com/openscad/openscad/files/9437765/Proximity_Sensor_D18_Holder_fixed.zip)

Thanks, meshmixer solved it somehow in "Analysis". The weird thing is that the ~~ascii~~ STL export shows some at F12 the pink color. But render with F6 works now, thanks...

It does not fail. That's why I reported it. ~~Only the ascii version of STL has it, the binary version has no pink!~~ Code I tested was: ``` difference() {...

I restarted OpenScad to be sure, so cache should not be the cause. I tried your code and it works also well (up to 255 for convexity). The original STL...