Extrudr Spool Filament Clip v2 + Weight Database
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Several clips to keep the filament tensioned. They clip to the inside of an Extrudr spool and stay there.
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Model information
- Source
- Printables
- Category
- Accessories
- License
- Creative Commons — Attribution — Share Alike
An inline filament clip for Extrudr spools.
Well … several actually, as Extrudr uses a bunch of different spools.
The clip weighs 1.06g and the filament can be clipped-in/removed without removing the clip.
The clip can remain inside the spool.
As the Extrudr-Spools have only one spot with 2-holes, I have added a version that will clip into a single hole. It may not stay straight, but maybe that's ok with you.
Spool Variants
Image | Name | Look | Prevalence Empty Spool Weight | Hole Distance |
 | S/M - Type A | 800g to 1100g outer ring has straight lines inner ring more straight lines | very common 244g | 21 mm |
 | S - Type B | 800g to 1100g outer ring has flat diamonds inner ring has reverse diamonds | medium common 259g | 21 mm |
 | S - Type C | 800g outer ring has bulging fat diamonds inner ring trapezoids | older and uncommon 275g | 29mm |
 | S/M - Type D | 1000g straight lines and circles radiating from center | I have 1 of those 255g | 22¼mm |
Seeking for your input! / Help required
I'm looking for measurements of any Extrudr spool I have not yet encountered.
e.g.:
2kg L spool
5kg XL spool
10kg XXL spool
If you have a version of those, please drop me a message with the following measurements:
use caliper, measure inner distance between two holes
use caliper, measure diameter of a hole, or several to get an average
width of spool plastic wall, where the hole is
Printing
100% infill
print nipple up - lay flat on face with filament recess
recommend layer height between 0.20mm to 0.40mm
good with 0.6mm nozzle but everything else works too
no supports
with smooth printbed, edges of filament recess will melt a bit inward, holding the filament even better. You might have to thread it in and not be able to push it in from the side.
with textured printbed, there is no inward melting, you can push the filament in from the side.
Updates
Update 2025-03-17
tighter bend, smaller diameter, higher clip, so filament will hold even better.
added 1-hole version
Update 2025-03-18
a comment by @newyen_359607 made me re-check ALL my Extrudr spools, where I discovered that at least one differs quite a bit.
Update 2025-03-25
discovered yet another unique Extrudr 1kg spool
Credits:
Inspired by many other great clips of this sort.