// Increase this if your slicer or printer make holes too tight. extra_radius = 0.1; // OD = outside diameter, corner to corner. m3_nut_od = 6.1; m3_nut_radius = m3_nut_od/2 + 0.2 + extra_radius; m3_washer_radius = 3.5 + extra_radius; // Major diameter of metric 3mm thread. m3_major = 2.85; m3_radius = m3_major/2 + extra_radius; m3_wide_radius = m3_major/2 + extra_radius + 0.2; // NEMA17 stepper motors. motor_shaft_diameter = 5; motor_shaft_radius = motor_shaft_diameter/2 + extra_radius; // Frame brackets. M3x8mm screws work best with 3.6 mm brackets. thickness = 3.6; // OpenBeam or Misumi. Currently only 15x15 mm, but there is a plan // to make models more parametric and allow 20x20 mm in the future. extrusion = 15; // Placement for the NEMA17 stepper motors. motor_offset = 44; motor_length = 47;