Prusa XL 5H Drybox Spool Holder - Orthex SmartStore Classic 45L

I needed a drybox for my XL 5H, that I can directly print out of. I found the “SmartStore Classic 45L” container from Orthex in my local hardware store (Bauhaus) and it matched the dimensions to hold 5 spools side by side. I designed this spool holder matching the dimensions of the container.

The holder does not need any bearings and uses a very simple design to hold the spools. I am not a fan of the holders with rollers on the bottom, as this feels unstable and might cause problems with damaged spools. It should fit spools up to 7,5cm wide. The max diameter of the spool depends on the diameter of the center hole, but the absolute max would be 25cm. In reality it probably is closer to 23-24cm depending on the center diameter. 

The holder also features a huge space for adding silica gel / desiccant to keep the container actually dry. I also provide a funnel you can print, to make filling the holder with silica gel easy. I added PTFE passthrough couplers to the box to allow a relatively airtight connection directly to the printer. This also allows the PTFE tube to act as guide for the filament inside the container.

I also changed the position of the filament sensor to the back of my XL using the using this model. I routed the bowden tubes in reverse direction through the sensor for a clear setup.

Additionally I added a cheap hygrometer using this mount.

The holder can be printed without support, the provided 3mf files contain the print settings I used to print everything.

Additional models used for the drybox:

• Additional Clips to keep the lid shut: https://www.printables.com/de/model/60170-clip-for-smartstore-31-box
• PTFE Tube Passthroughs: https://www.printables.com/de/model/295764-pc4-drybox-feeder-with-knurled-screw-on-cap-m10m6
• Filament Sensor Rear mount: https://www.printables.com/de/model/834350-rear-mount-for-prusa-xl-filament-sensor-remix
• Hygrometer Mount: https://www.printables.com/de/model/625297-hygrometerthermometer-mount-for-dry-storage-box

Additional hardware needed for the complete drybox build (no affiliate):

• Orthex SmartStore Classic 45L container
• PTFE Couplers
• PTFE Tube
• Hygrometer
• Seal for the lid
• Silica gel / desiccant