Need Help To close open polysurface

Hi There . I Hope you fine

i’m making a body for a personal project to print in 3D.
but i find A lot of troubles in my model, i dont even understand what is the main problem and where to fix it, when i open my model of this body in rhino and click it, it says “open polysurface” as i know when you going to print in 3D it needs to be “closed polysurface” and i tried almost 6 hours to find what´s wrong, i dont find anything to make this work, so i may ask someone here to help me please :frowning: 3D To Print.3dm (865.5 KB)

I’m using R5, and can open your file, so guess you’re using 5 too.
The display color makes it disappear when not selected.Rhino has a joinedge command which will ‘fix’ your naked edges. It’s not recommended for normal use, but solves problems like this. Happy printing.

Here is file with closed polysurface
3D To Print.3dm (954.5 KB)

and video how to do it (one of more possible ways)
https://www.dropbox.com/s/9zncvdpxxax4gs1/Close_Open_Polysurface.mp4?dl=0

thanks ! :slight_smile:

thank you alot! you save my life, i will learn from your video seriously, thanks man! :smile:

I am not wild about this method of repair- - better if you can get the existing surfaces to within tolerance - this is perfectly possible without major surgery or blood loss.

-Pascal