I made this model for reference when making a custom filament spool holder, but this could be helpful when designing anything filament related, so I am uploading it here.

Almost all dimensions are about as accurate as I could possibly measure them with a caliper, except the fillets and chamfers because they would take too long to measure. So use this model's measurements with a bit of caution.

How to use as reference in Fusion 360

1. File > Open > (Open Sunlu Spool 1kg v11.f3d)
2. Open the project that you need the spool as reference
3. In the Sidebar > My Recent Data, right-click on the Sunlu Spool project and select Import into Current Design
4. Just move the spool into position, and you're all set :)