Is there a program to make a 3D model with measurements that is free?

[Ozwes007]

Hi all, I use 3 programs, Fusion 360 is reasonable at 3D, not brilliant at 2D. Excellent Drawings. LibreCad for 2D and quick DXF for Fusion, OpenScad for most of my quick and easy 3D and use a converter I have made to generate 2D files for import into LibreCad for dimensions. One think you will find with Fusion and a number of other CaD programs is the facets that get produced on curved surfaces, OpenScad is the best program at giving good curve output. The difference is extremely noticeable when CNC or 3D printing. A program that converts these facets to curves like arcwelder help. Only important if you are generating gcode for production.

 

[ruben]

and would there be some free program to view SLDPRT files