Filament Spool Holder with Bearings for Prusa XL

A replacement for the stock filament holder which uses 608 bearings for a smoother experience and has modular ends for different spool widths. I tested it with spools up to 2.3 kg without any issues so far.

Because it's an XL I printed them as multi-material print using PLA and TPU, but the TPU is not necessary at all. I just did it because I can.

Additional parts required (for each holder):

• 1 x M4 x 50 screw
• 2 x washer for M4 screws
• 2 x 608 ball bearings
• (Low strength) Threadlocker (highly recommended, see below)

The STL files are made for spools up to 70 mm for the short configuration, and up to 105 mm when using the longer modular part. If you want to customize the sizes you can use the Fusion 360 file from the download section.

If you have the official enclosure and plan to use spools with a outer diameter more than ~28 cm, you should use the “8mm Spacing” version for the upper front holder on both sides to prevent the spools scrubbing on the handle of the bellows.

Assembly instruction further below.

Support my work

For non-Prusa parts and filaments, check out 3DJake (International, UK, Germany, France).
I'll get a small cut of any order you fulfil using these links (at no additional cost for you 😉).

If you want to support my work directly, you can buy me a coffee.

If you want to order a Prusa printer and earn some Prusameters (I will also get some), you can use my referral code "@Whity" at checkout or click one of the following links
(the code only works for the first order of each printer model):
| CORE One | CORE One Kit | MK4 | MK4 Kit | MINI+ | MINI+ Kit | XL | SL1S | SL1S+CW1S |

Also check out my other models.

Assembly

IMPORTANT:
When screwing the holder to the XL frame:

1. Don't tighten the screw to much
2. The use of (low strength) threadlocker is HIGHLY recommended.
   Otherwise the screws can come loose over time because there may is still some turning force

Parts for one holder:

NOTE: The washers don't have to have different outer diameters

IMPOTANT:
When screwing the holder to the XL frame:

1. Don't tighten the screw to much
2. The use of (low strength) threadlocker is HIGHLY recommended.
   Otherwise the screws can come loose over time because there may is still some turning force.