Ender-3 V3 Top Spool Holder (Rear Facing)

A rear facing top mounted spool holder for the Creality Ender-3 V3, including roller.
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updated August 30, 2024

Description

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Note: This spool holder is designed to work with a re-sited Filament Sensor Bracket such as Ender-3 V3 Z-Axis Filament Sensor Bracket or Ender-3 V3 Top Filament Sensor Bracket.

Note: This will not fit the Plus model as its frame is differently sized. See my Ender-3 V3 Plus Collection.

Whilst I think the Ender-3 V3 is pretty excellent, Core XZ element means that Z homing includes large up and down movements, which pull a length filament off the reel, which then has nowhere to go when the head moves back to the bed again. With the provided set up, filament gets pushed out to the back right hand side in amongst the main wiring, and is a bit of a mess (and could theoretically snag).

This mount clips on to the top of the frame, taking the filament away from the right side of the printer. You can bypass the filament sensor if you want, otherwise I've designed two brackets that move the filament sensor to work with this mount (see above). 

Printing

I printed these in PLA+ using 4/4/4 walls/top/bottom and 15% 3D Honeycome infill (or Gyroid). It is printed at a 45% angle (for finish and strength) and barely fits on my 220x220 bed - it needs supports and to be placed at an angle on the bed. Here is where I used Support Paint in Orce Slicer:

And this is how it looked like on the bed:

That may look like a lot of support, but I'd rather make sure that the parts join in the middle properly after a few hours of printing and that the outer surfaces look clean. 

I've also included some snap-in Logos and text. They're not necessary of course, but I like the effect. If they're not fitting for you try adjusting the X-Y compensation a little (as small as 0.05mm can make a difference) to make them a little thinner.

The Roller mechanism and upper frame dimensions are derived from this model: 

K1/K1 Max Table Top Spool Holder

The Roller bearings are from this excellent collection:

Print in place bearings

I've included their Default and Loose versions of the M608 bearing here. Some working of them to smooth the insides plus some dry PTFE spray does wonders.

Assembly

The frame snaps into place at the top of the printer frame. Hook it in at the back first then bring it forward until the front snaps in under the frame. This is designed to be pretty tight so that it doesn't vibrate or move (other than left and right to better suit different diameters of spool)  and can hold the weight of a full spool. This is one reason I used PLA+ - I don't think that for example Silk PLA would survive this… Could try PETG though.

Choose your Filament Sensor Bracket if needed, then do a full homing of all the axes to make sure nothing is in the way. Add a spool of filament, feed it through, and run Input Shaping. Then we're done!

This is an attempt to work with the CoreXZ design - it may not be the best method possible. Do give feedback on any issues and/or improvements you may have.

EdinBearDragon

E3V3 Collection

This is part of a collection of Ender-3 V3 Mods, designed to fit with the aesthetic of the printer.

Ender-3 V3 Top Spool Holder (Rear Facing)
Ender-3 V3 Top Filament Sensor Bracket
Ender-3 V3 Z-Axis Filament Sensor Bracket
Ender-3 V3 Top Spool Holder (Front Facing)
Ender-3 V3 Light Brackets for IKEA Rolfstorp
Ender-3 V3 Z-Axis Logitech Camera Mount
Ender-3 V3 Z-Axis Nebula Camera Mount
Ender-3 V3 Corner Brackets for Remixing

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