Sean Cusack’s Fire-Roasted Heart

123D user and master fabricator Sean Cusack may have a heart of gold, but in this instance he's here to melt hearts... Hearts made of half-inch (~12 mm) steel.  So don't get to close, this one's going to be hot!


What you're looking at is a welded steel heart, suspended by chains over a 12 million BTU, propane burning hot air balloon burner.  I bet you can guess what that does : turn steel red hot!

Sean says if the burner was left on long enough the steel would completely melt.  Sounds pretty cool, but we're also interested in how it was made.  Sean started with a simple 3D model of a heart (like this example, free on the 123D gallery), sliced it in half with MeshMixer, and used 123D Make to turn the remaining half-heart into slices that fit together nicely before welding.


Below is the half-heart before and after in 123D Make.  What looks like a complex 3D structure of interwoven slices was generated by 123D Make with just a few clicks.  You can download Sean's 3D Models and the sliced 123D Make from the 123D Project Gallery here's the link!

Hit the Read More link to see the process... Read more »