YHT rule demo

youmagine

As part of my workshop series, I created this teaching aid to demonstrate how to apply the YHT rule effectively for support-less 3D printing design. I strongly advise against limiting your design solely due to this rule - it can be easily overcome with clever techniques. The YHT rule specifies: Y prints perfectly, H prints without issues, and T fails to print. To break it down, Y prints seamlessly because angles of 45 degrees or less provide ample material for a new layer to form without needing supports. H prints flawlessly due to having two sides supported, leaving only a small amount of loose filament on the underside. Conversely, T fails to print because there's insufficient material to act as a support for the next layer. This aid also includes an additional set of letters that clearly illustrate how this issue can be resolved by simply rotating the object on the build plate. Of course, there are other ways to overcome this limitation, but I chose this method as one of the most straightforward representations in a single print.