Mini Dry box experiments

I’m in the ‘dry is good’ camp but probably because I print a bit in PA, PC and TPU on my X1. I’ve repurposed a DIY dry box from my Prusa Mini experience in this A1 Mini trial setup. Still a work in progress and not yet filled with dried filaments and desiccant.

I’m experimenting with extending the PTFE tubes from the box to a short section of PTFE left in the extruder.

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Can you post a pic of how your filament feeding setup works? Very interested in your project!

I am using a ‘watertight’ tote from the local big box hardware store with a section of pcv pipe to hold the reels. Time will tell if that works properly. It is just simpler than the bearing roller approach.

The original box design and fittings are from

The box (base) is mounted 50cm above the printer build plate.
The PTFE tubes are 60cm long and stow in the orange fittings to close everything when not in use. I have a short PTFE tube in the extruder.

The filament extends from the Reel in the box through the 60cm section then into the short (~15cm) section and the extruder. This break in the PTFE tubing near the extruder makes it easier to Load and Unload.

I sourced the clear PTFE 4mm od/2.5mm id tubing from AliExpress.
https://vi.aliexpress.com/item/1005003837895962.html
Note: Get the 2.5mm id as it provides less drag than the more popular 2mm.

I’m looking to use a couple of these desiccant boxes once I get the kinks worked out.
They are my remix of
https://www.printables.com/model/423765-silica-dry-box-for-bambu-lab-ams-hydra-and-stock-v

.
The funnel slides into the top groove to make desiccant loading easier.
Yup, lots of stringing but I’m too slack to worry about it :-).

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Thanks for the pics and description…particularly the tip on the tube ID.