Show HN: How to Make 3D Bronze Mountain Maps – 3D Printing and Bronze Casting

gregkamradt.com

5 pointsgkamradt3 comments

Great idea and good luck with the business. Targeting mountain climbers, thrill seekers might be worthwhile. Imagine Everest in bronze ...

Is that negative mold made out of some flexible silicon?

Yes it is. They use a vacuum technique to remove all the air bubbles and sit perfect on the 3d print