Voronoi arm prostetics

Hi guys,
I would like to 3D print arm prosthetic for my fried. I have 3D scan of her arm but I would like to make Voronoi pattern so one could see through the 3D print. Since my knowledge of Grasshopper is limited I would like to know if someone have suggestions.
I tried with Voronoi command but it gives me surface creation. I need it along the surface and I would like to control the size and thickness of the future pattern.
Thanks,

Search the forum. The last month there were like 10 threads about it.

thanks.
I’ll try to do that.