Minimalistic Elegoo Neptune 3 Pro spool holder, 70mm & 125mm (only 6g/12g)
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This holder is printed in vase mode, but quite stable. Versions for 70mm and 125mm spool width.
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Model information
- Source
- Printables
- Category
- Accessories
- License
- Creative Commons — Public Domain
I checked the other filament holders here, but all I checked have the wrong thread - at least for my 3 Neptune Pro (they have a thread pitch of 1.8mm – the correct pitch is 1.5mm), so I had to design my own model. Since I love vase mode, I just had to use that… The result takes less than 6g of filament, but easily holds a spool. The helical pattern is for rigidity.
It is suited for spools up to 70mm width.
Update: I added a long version for Prusa's 2kg spool (125mm width). I had to reinforce that design; note the printing hints below. It uses 12g of filament.
Printing
I used the 0.4mm nozzle, but set the extrusion width to 0.6mm (print settings → advanced, all extrusion widths), the extrusion factor to 1.10 (filament settings → filament → extrusion multiplier) and nozzle temp to 215°C for better layer adhesion. No bottom layers - or a few for a more stable end section. I prefer without though.
For higher print speeds set filament settings → cooling → “slow down if layer print time is below” to, say, 4 seconds.
The 125mm version needed some extra reinforcement structures. These require a special setting: Print Settings → Advanced → Slice gap closing radius: 0.01 mm