Covers and fanducts for Snapmaker J1

Covers and ducts for Snapmaker J1

Beware of the bedholder flaps. You might need to loosen them while doing z-offset calibration..

Screws and nuts for the assembly:
m4 x 22 mm. - 8 pcs
m4 nuts - 8 pcs

19.05.23:
Adjusted the positions of the mountingholes on the covers according to specs from Snapmaker.

20.05.23:
Added missing nuthole.
Adjusted accesshole to mountinghole on the covers.
Changed the shape of the ventilationsholes

25.05.23
Removed 1 of the ventilationholes =)

14.06.23:
Made nutholes a little smaller
Added guidehole for the wire on the backside

15.0623:
Made the nutholes a little smaller.

Print settings recommendations:
Layer height: 0.2
Line width: 0.4
supports: yes
Support z distance: 0.2
Bridge settings: Enabled
skin overlap/infill overlap: 50-100%
Material for covers: Any
Material for ducts. Anything but PLA. (PLA might be ok too, at least for a while but not sure how long it would last concidering the low heat resistance.

For the ducts: From a functionality perspective, it would be best to print them with the holes for the screws oriented horizontally. Also use standard generated supports but make sure there are no supports inside the airchannels, Either with the setting supports on buildplate only or with support blockers. The "ceiling" inside the airchannels will be 100% overhang/bridge so make sure there is enough overlap for the start/end of the bridge by increasing the "skin overlap" setting in Cura or "Infill overlap" in Prusaslicer to 50-100%.
Print 100% overhangs/bridges very slow if possible in your slicer. so that the supports are easier to remove.

The covers are easier. Just lay them flat on the buildplate, use standard supports and support blockers for all holes. As always: Print 100% overhangs/bridges very slow if possible in your slicer. so that the supports are easier to remove.