NT Labs Pond Lab water test kit - I designed an individual holder for each of the 6 tests in the kit, each holder includes for the test tube and test bottles with a reminder of the test steps, i.e. no of drops, wait time etc.
Printed at 0.3mm layer height and 10% infil.
Each holder is a single STL and to achive the coloured text and symbols I used a filament change at 14.3mm and then returned to white at 15.5mm
I included 6mm holes through the bases so that if required any combination of the holders can be glued togther using the pegs or similar.
The author marked this model as their own original creation.