UPDATE 11/09/2022:

Added a 175mm height version for even bigger filament spools.

Remix based on yejj97's design found here.

Increased the height to 155mm (10mm more than original) to accommodate bigger filament spools (e.g. Sunlu and Amazon Basics); changed the bottom holes to M4.

Holds 1 kg filament spools without any issues.

My print settings:

• PLA
• 0.2mm layer width
• 4 perimeters
• 31% gyroid infill
• No supports

Print laying flat on its side.

Required hardware:

• 2x M4x12mm cap head screws (DIN 912)
• 2x M4 washers (optional)
• 2x M4 T-nuts / drop-in t-nuts (or print your own, i.e.: this)
• 2x M5x16mm socket button screws (ISO 7380) / or use equivalent DIN 912
• 2x M5 washers (optional)
• 2x M5 nuts

To be used with 2020_spool_holder.stl from Hultis, found here.