Bahtinov Mask Customizable (Nexstar 5SE)

A adaption of https://www.thingiverse.com/thing:160391 Bahtinov Mask Generator
by https://www.thingiverse.com/brentb

I removed the handle (which will break) and replaced it with a ring around the center and set the defaults for a Celestron Nexstar 5SE:

outerDiameter=145
aperture=127
centerHoleDiameter=50
gap=4


Diff for the handle:

@@ -87,5 +91,11 @@
union() {
linear_extrude(height=2) bahtinov2D();
// add a little handle

• translate([outerDiameter/2-gap,0,0]) cylinder(r=gap/2, h=18);
• //translate([outerDiameter/2-gap,0,0]) cylinder(r=gap/2, h=18);
• difference()
• {
• cylinder(h=7,r=centerHoleDiameter/2+3);
• cylinder(h=7,r=centerHoleDiameter/2);
• }