Many thanks Pilou for your input. I was able to install FerrariSketch on WIN 10 - SketchUp 2021
but did not yet succeed to generate the gyroid surface. I think it would help a lot if you could advise me on your
input data with your set up, namely for:
Installing pressure/Warp/Weft tension ratio/Warp orientation/Default edgecable tension/Subdivisions/Accuracy level ???
I assume that the closed boundary has to be treated as rigid ?
By the way this link helped me a great deal to overcome the installation problems !:
https://sketchucation.com/forums/viewtopic.php?f=323&t=32380&p=286311

big thanks for your helping hand
regards
Ken

Yes seems the Ferrari has some little difficulties with this circonvoluted Gyroïd! :)

Many thanks Pilou: would you like to post your gyroid solution ?
Regards
Ken

Little difficulties = no success! (with some number of trys, change parameters etc...

Even with only 2 arcs... :)

Many thanks Pilou, I didn't succeed either with FerrariSketch but the Soap Bubble plugin
worked perfectly, imho...
attached a screenshot + dxf-file of the closed boundary for further testing

regards
Ken