Uploaded December 2020 | Updated September 2026, 17 minutes ago
I had my first experience with bad prints due to moist filament since I installed the MMU2S kit. Because it is such a pain to thread the five spools, I was leaving them out. With a single spool I always put the filament back in the ziplock bag and a silica gel packet.
I ended up getting a SUNLU filament dryer ( amzn.to/39TbOQc ), but buying five would be expensive!
I figured I would just fill the trays with Silica Gel beads and 3D print a cover using transparent PETG. The design had to work around the MK3S print volume. I installed a temperature / humidity sensor to make sure everything is OK.
I tried single and double wall boxes, but they failed. I ended up 4 filament wide walls. It's a long print, but I'm pretty happy how they are working.
The 3D print models are on:
thingiverse.com/thing:4679715
prusaprinters.org/prints/48512-dry-box-for-mmu2s-supplied-spool-trays
items used:
* SUNLU Dryer box ( amzn.to/39TbOQc )
* Overture Clear PETG filament ( amzn.to/39UaQDl )
* Temperature / Humidity Sensor ( amzn.to/37OpKIy )
* Rechargable Silica Gel Beads ( amzn.to/39QYMTm )
* Ziplock bags ( amzn.to/37Keehm )
FTC Disclaimer:
We may earn commissions for purchases made through the links below.
As Amazon Associates we earn from qualifying purchases.
I had my first experience with bad prints due to moist filament since I installed the MMU2S kit. Because it is such a pain to thread the five spools, I was leaving them out. With a single spool I always put the filament back in the ziplock bag and a silica gel packet.
I ended up getting a SUNLU filament dryer ( amzn.to/39TbOQc ), but buying five would be expensive!
I figured I would just fill the trays with Silica Gel beads and 3D print a cover using transparent PETG. The design had to work around the MK3S print volume. I installed a temperature / humidity sensor to make sure everything is OK.
I tried single and double wall boxes, but they failed. I ended up 4 filament wide walls. It's a long print, but I'm pretty happy how they are working.
The 3D print models are on:
thingiverse.com/thing:4679715
prusaprinters.org/prints/48512-dry-box-for-mmu2s-supplied-spool-trays
items used:
* SUNLU Dryer box ( amzn.to/39TbOQc )
* Overture Clear PETG filament ( amzn.to/39UaQDl )
* Temperature / Humidity Sensor ( amzn.to/37OpKIy )
* Rechargable Silica Gel Beads ( amzn.to/39QYMTm )
* Ziplock bags ( amzn.to/37Keehm )
FTC Disclaimer:
We may earn commissions for purchases made through the links below.
As Amazon Associates we earn from qualifying purchases.
