Prusa XL Nextruder hotend box

3DesignsCH's Prusa toolboxes are awesome. I made both the XL and MK4 variants of the V1 design, which work great! The problem I ran into with the XL box is that I have two sets of hotends for my 5-tool XL because I prefer hardened nozzles, there is no 0.25mm hardened Nextruder nozzle, and I really, really, really dislike having to hot tighten when using a V6 Nozzle-X with a Nextruder adapter. Five hotends take up a LOT of space in the toolbox, the wires get caught on stuff, and there's a lot of other things I would rather have in the box. I did make a lighter weight nozzle box that I used for a while, but it was a little small, had a tendency to pop open, and didn't have space for a T8 wrench.

I shortened the original V1 box down to the size, which is still a bit taller than the hot ends, but figured that that meant there was available space in the lid for something. Rather than put in fixed holders for tools, nozzles, or whatever, I opted for a modular solution. The rail blocks in this folder have a cutout on the back for a magnet (I have a bunch salvaged from discarded fancy packaging); these aren't designed to hold onto tools without the magnet (I may post some later - that's the whole point of having a modular system).

The individual inserts are large enough to accommodate one complete hotend assembly plus one or more slider blocks. These are also modular. Two variants are posted here - one that can hold up to two Nextruder nozzles, and one that will hold a single V6 nozzle. They snap into the inserts and can be slid along most of the insert length as needed. The “seat belt” is optional and can be put at either end or in the middle of the insert. The seat belt plate is entirely optional and provides a handy way to identify which nozzle goes with which head. The numbers were added using the PrusaSlicer text feature - change or omit at will, however you like (it's your box!).

Please feel free to suggest or request specific add-ons, or post your own!

Printed with Prusament PETG in Prusa Orange, Jet Black, Signal White, Urban Grey, and Anthracite Grey. 0.4mm nozzle, 0.2mm Structural, 15% grid infill, 2 perimeters (latch set to 0% infill and 3 perimeters). While everything in the project file is on one build plate, that's not how I actually printed it - box bottom was printed alone (I cheated and did it on my MK4S), box lid was printed alone with wipe tower enabled, the seat belt number plates were printed separately with no wipe tower (single filament change), and the rest was done using mostly single color batches.