So, hard to know where to start with this one, but I guess it should probably be with a warning for any younger readers, in that the 3D printed product is of an adult nature — yes, it’s a dildo. I have not quite worked out why this was the chosen design for this test — all I can put it down to is the sense of humour of Neil Underwood who hosts this episode in the “Still Extruding” series. You can hear him trying to stop himself laughing a couple of times, so he’s obviously getting a kick out of it.
Let’s get back to the 3D printing angle – much more comfortable there – and here’s what that angle is: a 3D printable thermocromatic plastic material. The thermocromatic property of the material means that it changes colour at different temperatures. As highlighted in the video – it is supplied as grey filament, but under the extrusion and build plate temperature it prints out white, returning to grey once it has cooled back down to room temperature. But it will also go back to white when held or touched — as demonstrated.
So with some typical 3D printing issues experienced during the build and clean up ops, what Neil was also testing with this experiment was the effects — if any — that the acetone vapour bath smoothing method, which we covered last month on 3DPI, would have on this material.
He seemed quite pleased with the results, take a look:
As Neil clears up in his blog post, the theromcromatic material is now available from Repraper for $32 per kilo (not $17 as stated in the video).
Hat tip to Rich.
Source: RepRap Log Phase