Fix non-manifoldness when joining fan_strut
Fix non-manifoldness
Let bowden escapement face the back
Factor out bowden escapement width calculation
Improve resolution on outside cylinder of bowden trap
Compensate for alignment issue of bowden trap supports when off-center
Update heatbreaktube offset
Increase bowden escapement width

0.8x is too small!
Increase size of bowden strut
Fix accidental shrinkage of bowden escapement
Extend bowden trap
Use escapement_width of 90% of bowden tube dia