Multiple Filament Spool Overhead 2020 Mounting Bracket

These spool holding brackets (Part A) are designed to hold up to four standard filament spools above your printer (I have them installed on my Tevo Tornado) via the top horizontal 2020 aluminum frame member, without any frame disassembly or installations of extra fasteners.

This design is a mixup of a cantilevered single spool holder designed by HugoHuge (Titled: Filler - The Customizable Filament Holder that fills your printer!), which employs a spindle mounted on two rollerblade bearings. However, unlike HugoHuge's mount per https://www.thingiverse.com/thing:3020026, this bracket is designed to interface with the female grooves of a standard 2020 channel on opposite sides, and to allow for two spools to be installed on the same bracket, each on opposite sides of the 2020 aluminum frame and in-line on the same axis for balanced loading.

In addition to including mounting grooves for your printer's top horizontal channel, this bracket includes another slide-in part (Part B) w