Prusa USS Drybox - General discussion, announcements and releases

RE: Prusa USS Drybox

Malvineous — Wed, 03 Jun 2026 01:23:43 +0000

I notice that there's still a six week lead time if you want to order one now. It makes me wonder whether they are tweaking the design and will start shipping updated ones. I wouldn't mind ordering a few more but I'm going to wait until it's no longer showing any lead time, just in case they are changing the design to better deal with the compatibility and usability issues discussed here.

RE: Prusa USS Drybox

Henryhbk — Wed, 03 Jun 2026 01:08:24 +0000

But doesn’t solve the thickness issue, which is tougher to solve than the center hub issue…

Posted by: @hyiger
I applaud 3rd party solutions but for the price, Prusa should include these adapters with the box.

RE: Prusa USS Drybox

FoxRun3D — Wed, 03 Jun 2026 00:55:46 +0000

What they should have done is to design it so that NO adaptors would be needed. Just a few mm more space and there wouldn't be any drag.

All in all I'm underwhelmed with the boxes. I bought two and certainly won't buy more. Another perplexing issue is that there's no way to rewind filament back onto the spool on unloading unless you open one of the small compartments on the side. And you can't read the humidity while the dry box is mounted. Etc etc.

RE: Prusa USS Drybox

hyiger — Tue, 02 Jun 2026 22:46:12 +0000

I applaud 3rd party solutions but for the price, Prusa should include these adapters with the box.

RE: Prusa USS Drybox

FoxRun3D — Tue, 02 Jun 2026 22:20:26 +0000

I have not tried these yet but am likely to soon:

I'm using these adaptors: https://www.printables.com/model/1686664-uss-drybox-sleeve-bearing/

As simple as it gets. Work perfectly for Overture., Polymaker, Protopasta, etc.

RE: Prusa USS Drybox

hyiger — Tue, 02 Jun 2026 20:32:52 +0000

Posted by: @henryhbk
Although the floor standing one is kinda cool.

That's the one I plan to go for.

RE: Prusa USS Drybox

Henryhbk — Tue, 02 Jun 2026 20:12:31 +0000

I had not seen the INBXX. The only reason I wouldn't be able to do them is even at over 6' (188cm) tall, not sure with my XL up on a counter I could reach the XL up that high (certainly couldn't reach into the XL to IPA the bed or anything. Although the floor standing one is kinda cool.

Posted by: @hyiger
I'm giving these a hard pass and will go with an INBXX solution once the INDX arrives. Also working on a bracket for my Polymaker boxes and will start with that first. Struggling to scale it down so it's printable on a Core One. Core One L and Bambu are no problem.

RE: Prusa USS Drybox

hyiger — Tue, 02 Jun 2026 19:59:41 +0000

I'm giving these a hard pass and will go with an INBXX solution once the INDX arrives. Also working on a bracket for my Polymaker boxes and will start with that first. Struggling to scale it down so it's printable on a Core One. Core One L and Bambu are no problem.

RE: Prusa USS Drybox

DMartin — Tue, 02 Jun 2026 19:51:36 +0000

I have not tried these yet but am likely to soon:

https://www.printables.com/model/1695628-prusa-uss-drybox-and-openprinttag-parametric-spool

I did try a home-made mod on a cardboard spool but in the long run it's not reliable, so I'll need something better.

RE: Prusa USS Drybox

Malvineous — Sat, 16 May 2026 03:23:16 +0000

Yeah I think once you've put a new spool into a drybox, you need to open the little flap (where the desiccant goes in) and make sure you can still rotate the spool with your finger without too much effort. If not, the spool doesn't fit (even if the drybox closes) so it's not worth risking it.

Now I've used the dryboxes a bit, I am surprised at the comment about the cardboard spool being tight. It doesn't seem like the friction here would matter, but I do wonder whether the two clamshell halves of the drybox are just clamping that spool too tightly. Probably worth measuring the depth of the central hole in the spool and confirming it's under ~72mm, or at least shaking the drybox once it's closed and confirming you can hear the spool rattle a little inside. If there's no rattling then the spool is probably too large for the drybox.