Neva Brick Spool Mount

thingiverse

Neva comes without a spool holder, so you'll need to print one yourself. I used the Dagoma-designed spool holder to hold a spool at the top of my Neva. While Dagoma's design works well, there were some annoying issues that I decided to solve by creating my own spool holder from scratch. Here are the goals I pursued: - **Neva-tailored shape**: The spool holder should make optimal use of Neva's dimensions. - **Secure installation**: The holder should not partially grip the bar or bend, or wobble. - **Slim Profile**: The spool holder should be minimal in size to allow for mounting close to the wagon rails and reducing the angle that filament creates while entering the extruder. - **Minimal friction with the spool**: The spool-holding arm should be maximally round so the spool will easily glide on top of it. - **Support of multiple spools sizes**: Up to 10cm in width and 1kg in weight. How (What) to Print, Install, and Use First, you need to print the brick, which consists of the main body, door, and a screw. You can print this as separate parts or as a combined model. Then, depending on your desired spool width, you'll need to print a spool arm (available in 6cm, 8cm, and 10cm). You can also adapt to another spool in the future by simply printing a new arm and replacing it. The assembly instructions are available among the photos of this thing. In short, they are: 1. Place the brick body around the top bar where you plan to mount the spool. One hole should face up (so the screw won't interfere with magnetic arms), and the other hole should face outwards (you don't want to mount your spool inside the printer). 2. Slide the door bracket onto the brick so they form a solid cube. 3. Screw in the screw at the top of the bracket, making sure it's securely attached. 4. Screw in the spool arm to the side of the brick with a counterclockwise movement. The spool will unwind counterclockwise, and this movement will contribute to tightening the arm attachment. Safety Warnings This design relies on thin parts working together seamlessly. For example, the attachment of the door and especially the attachment of the arm with a screw thread can be tricky. I printed this on Neva using the Dagoma-provided Cura with 33% infill. I used it for one week with a 1kg spool, and it worked perfectly. However, if your printer underextrudes, you may end up with a weak thread that can break at some point, causing damage or injuries. This is why I beg you to use this design at your own risk, as **I'm not taking any responsibility for potential damage**. Having said that, I'm open to feedback and interested in improving this design as I use it myself and want it to be helpful for others.