Hi All, Being a brand new subscriber to the *OpenSCAD *forum, I come with this message to present myself and also to test thee access since the procedure is very different from other sites. I wrote two small applications to evaluate the product. It was revealed to me by *FreeCAD *which has a workshop bearing its name. *1°) - the epicyclic train :* After the theorical study under *FreeCAD *with animation, a small crank's machine was produced in 3D printing. The illustration below details all its components. [image: eclate.png] http://jeanpierre.rousset.free.fr/Automobile/Technique/Train_epicycloidal/Documentation/index.html This marvelous gear is very old since James Watt used it in the 1780s. For me it has always been the ideal gear that can replace at good profit gearboxes and clutches in cars. *2°) - the model of the motor-glider Fournier RF4 D* * :* This single engine, single seat airplane was my favorite aircraft on which I flown the grea tmajority of my flying hours in paralel with gliding. So I simply tried to make the model in order to 3D print it when the time will come. [image: F-BORA.png] http://jeanpierre.rousset.free.fr/Informatique/Applications/OpenSCAD_OpenJSCAD/Fournier_RF4/presentation.html This project interested me because it required the development of profiles for which I favored the *Bézier curves* not foreseen by *OpenSCAD*, treatment that I had difficulties to find on the forum. These two applications were not very difficult in programming writing. They were rather difficult in terms of entering digital data. Indeed, I am desperately to search for *a graphic editor of technical drawings* other than the *AutoCAD*'s clones having the great default of not being *intuitive*. Interrupted use during several weeks leads to relearning the software. It's a great pity that my old "*microCADAM*" program that I had for over twenty years when I retired is obsolete even with the help of the virtualization application "*Oracle VM VirtualBox*" Best Regards Jean-Pierre Rousset -- ---------------------------------------------------------------------------------- *"Pourquoi faire simple quand on peut faire encore plus simple..." "Le plus simple est de ne pas faire.....seulement si c'est possible !..."* <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> Garanti sans virus. www.avg.com <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>

Welcome! Good looking projects!