Multiple Filament Spool Overhead 2020 Mounting Bracket

thingiverse

These spool holding brackets (Part A) are designed to support up to four standard filament spools above your printer without disassembling the frame or installing extra fasteners. They are installed on my Tevo Tornado via the top horizontal 2020 aluminum frame member. This design combines a cantilevered single spool holder with a spindle mounted on two rollerblade bearings, similar to HugoHuge's Filler - The Customizable Filament Holder that fills your printer. However, this bracket is designed to interface with the female grooves of a standard 2020 channel on opposite sides and allows 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) that further secures the primary Part A bracket, making the assembly even more rigid. It also includes a grooved bracket (Part C) to accommodate an unmodified Tevo Tornado Allen wrench tool holder made by Thingiverse user Rumple. Note that the Z-axis travel is limited when this design is installed, so it may not work for printing really tall parts unless modified to extend the spools above the channel sections. I find this design works great with the direct drive extruder setup, requiring no need to rearrange rolls when changing filament. Before switching to direct drive, it was easy enough to swap the rolls so that the active one was in the best position for the extruder feed. I experienced some installation challenges with this bracket (Part A and Part B), particularly with the spool holder cantalever holders and the spindle itself. I encountered difficulty with the female socket designed to receive HugoHuge's cantilevered bracket, which required me to print Part A upside down to avoid using a massive support section. To clean out the female groove in my Part A, I used a heat gun and hammer, successfully eliminating any issues. While I may have not had the best settings for supports, I'm satisfied with the result. In hindsight, I might have made Part A couple to Hugohuge's bracket as one piece, but it is what it is. I also experimented with scaling HugoHuge's spindle in my slicer to get it to fit into the bearing. At this point, I assume that any interference was due to bad bed leveling on my part and bottom layer squish, so I can't say that the original design was to blame.