Visually based on mode 1167828.
Complete redo. This version for single extruder. Uses key holes for hanging,(#6 screws).
Load as project if you want colour changes to be set as well to make changes. IE type of infill, percentage, supports, filament type resolution. Or use the bgcodes.
The holes for the darts may have have some debris in them run a small drill bit (2.4mm) in the hole
I have included a template for hanging/mounting. Place in desired location. Use a pin in top center hole. Let it swing (will level on its own, you may be required to clean out hole depending on your pin) Now mark the other 2 holes and drill the correct pilot hole size. put in screws most the way in. Now hang the print. I have printed in PLA and PETG with good results. There is a MMU version as well at:
The author marked this model as their own original creation.