Parametric Circular Air Trimmer "improved"

Check out the original author: https://www.thingiverse.com/wavexx/about

I made some changes to wavexx's original design:

From
"translate([bore_diameter+wall_width2+brim_size, 0, -cap_height]) cap();"
to
"translate([bore_diameter+wall_width2+brim_size, 0, 0]) cap();"

From
"holes(h=cap_height+0.2, r1=pin_diameter/2+cap_height2+padding, r2=bore_diameter/2-wall_width, s=cap_slices);"
to
"holes(h=bore_depth+0.2, r1=pin_diameter/2+cap_height2+padding, r2=bore_diameter/2-wall_width, s=ca