Calendar Frame

I found the printable calendars available at to be quite useful so I decided to design a holding frame for them. This frame will hold a full year of 8 1/2" x 11" monthly calendars. There is also a slot for a 8.5" x 11" piece of cardboard backing to facilitate writing on the calendar. Since my printer has limited print size the frame sides are made of two pieces glued together. I have made frames using ABS, HTPLA, and PLA. HTPLA and PLA provided the best prints with better dimentional stabi