Is attached to the rear of the laser module at the original existing holes. The magnetic protective cover is simply rotated 90 degrees.
Nozzle opening is 0.8mm, so I printed it on a SLA printer. You lose 10mm on the Y-axis, so best to reduce the print area accordingly in the software.
Additional material:
2x M3x6mm countersunk screws
1x M6 Bowdencoupler
Tube 4mm ID / 6mm OD
The author hasn't provided the model origin yet.