Simple Pantograph

thingiverse

A pantograph is a four-bar linkage based on a parallelogram that scales the movement of a point by a set factor. For simplicity, the design is non-adjustable but includes linkage files for scale factors (SF) of 2, 3, 4, and Pi. After putting the design through some tests, I found the margin of error to be consistently under one percent. Hardware 10x M3 x 8mm screws What to print 2x Link_1 1x Link_2 (2x for SF of 2) 1x Link_3 (0x for SF of 2) 1x Base 1x Base_Pin 1x Base_Pin_Cap 1x Pin_1_Base 2x Pin_1 2x Pin_2 1x Pin_2_Short 3x Pin_1_Cap 3x Pin_2_Cap 1x Support 1x Pointer_1 (for joint closest to base) 1x Pointer_2