This is not your traditional “Pencil on Paper” drawing turtle. This one uses 8 Ultra Violet Leds beaming in this case an the propeller ROM based characters are extracted and fired onto a Phosphorescent vinyl sheet. The programming routine uses some spin code found to generate the patterns.
The pen slot has been replaced with a bar of downward pointing UltraViolet LEDs one placed central to the hole and the others fanning out. This arrangement means that the user can send the Propellers internal character-set (no costly data tables) to the UV array and plot to a Phosphorescent screen.