configuration.scad

// 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;

// 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;

// OD = outside diameter, corner to corner.
m5_nut_od = 8.1;
m5_nut_radius = m5_nut_od/2 + 0.2 + extra_radius;

m5_head_od = 10.5;
m5_head_radius = m5_head_od/2 + 0.2 + extra_radius;

// Major diameter of metric 5mm thread.
m5_major = 4.85;
m5_radius = m5_major/2 + extra_radius;
m5_wide_radius = m5_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;