Mô hình Tỉ số Lượng giác (Trigonometric Ratios Model)

I made this for a math teacher at my school. This is based on jennanuzz's version on makeworld.  I tried to make it more "middle school proof". 

This model is a visual model of trigonometric ratios for right triangles. It is intended to assist students in understanding how "SOHCAHTOA" works. 

I am printing on my mini. I used a 0.4mm nozzle, 0.2mm layer height, 2 perimeters, and 15% infill. This seems sufficient for its intended purpose. I also did a color change at layer 17. Ironing the top layer helps with readability, but is not necessary. 

Print time is 24 minutes, excluding the filament change.