How to add a baseplate to 3d scan in C4d (for 3d Printing)

Hi, i want to add a baseplate to my 3d scanned model for 3d printing. I dont know how connect the boundary edge to a baseplate or basemodel.

Someone know how to select the edges and connect it?

Im using c4d r26.

Thank you!

Hi Jan,

I think you are after the Weld tool.

Kind regards
Tiles

Thank you for your fast reply!

I know that tool, but i dont know how to select all edges. The model has 10 million polygons.

try a border-edge-loop selection