Proto-pasta first experimented with adding scent more than one year ago (see Aromatic Coffee HTPLA).  The idea was to take their favorite desktop process, and make it more pleasing!  What started as an experiment in creating Pumpkin or Holiday Spice had such a clear cinnamon influence that Proto-pasta is calling it Aromatic Cinnamon HTPLA.  Enjoy a more pleasant printing experience this holiday or any day!  The dark, rich translucent brown pleases with red and copper tones depending on thickness and light.

Like Proto-pasta’s other HTPLAs, Aromatic Cinnamon can be “Heat Treated”  to increase crystallinity for “Higher Temperature” resistance compared to standard  amorphous PLA, ABS, or co-polyesters like PETG!

This otherwise odorless plastic releases an invigorating toasted cinnamon scent when heated. Aromatic Cinnamon has a deep translucence, but turns opaque when heat treated (or crystallized) for a more wood-like finish.  With a more crystalline structure, HTPLA’s Heat Deflection Temperature (HDT) can be practically elevated to 120C (250F) or more depending on post-processing. This means parts retain more stiffness and form to higher temperatures, like on hot summer days!

For this improved the performance, your prints should be baked in an oven until you see a change from translucent to opaque with reduced gloss.  This visual change indicating the improved performance! We’ve  seen the change take place in 5-10 minutes on thin walled parts but can take an hour or more.  We’ve had good luck in a quality, at home convection oven at 110C (225F).  Parts will get very “floppy” before becoming more firm, so please leave supports on your parts and bake them on a flat, non-radiating surface (like glass, ceramic, or composite). Parts can be baked at a lower temperature, though must be above the glass transition (55-60C) for any change to occur.