what is the best way to share a rhino 3d model in read-only/view-only format? thx
If you want to share files among co-workers then Worksession may be useful. Worksession | Rhino 3-D modeling
Or do you want to distribute a file which is locked and cannot be modified by anyone else?
What problem are you trying to solve?
Offering suggestions without knowing the problem you’re trying to solve is at best, hit or miss.
[quote=“David Cockey, post:3, topic:148954, username:davidcockey”]
to distribute a file which is locked and cannot be modified by anyone else
[/quote] 
it’s exactly what I want. Sorry if I was unclear
Hi @user177
It depends on just how “locked” you want your files to be. The simple solution is to mesh your object(s) and export as eg. STL - a file format with plenty of free viewers available. Meshed models can of course still be edited, but he original NURBS surfaces are gone, and reverse-engineering them is a lot of work. A more commercial and “easier” solution is 3D PDF’s, where even the mesh data are (very) hard to extract. SimLab Soft has a quite cheap plug-in available.
HTH, Jakob
Mesh is good. A 3d PDF works too but you’ll need to get an authoring tool.
It is not possible to make a Rhino 3dm file secure and unchangeable.
nice! that method is suitable for me
many thx to everybody 