Easy Open Spool Hub Desiccant Holder R3.

Part of my Plastic House Dry Box set.

This is also composed of the combo Spool Holder / Bearing Assembly and Hygrometer holder all in one which you can find here:

https://www.printables.com/model/789419-plastic-house-dry-box-spool-holder-self-contained-

And my PC4-M10 Drybox passthrough with cap which you can find here:

https://www.printables.com/model/789995-pc4-m10-drybox-passthrough-with-cap

This is Revision 3 of my Spool Hub Desiccant Holder

Revision 1 was done in Rhino.  It worked but but took a long time to print as it wasn't optimized for nozzle size wall thicknesses and layer heights:

https://www.printables.com/model/54821-spool-desiccant-can-and-lid

Revision 2 was redone from scratch in Fusion360, and was optimized for print:

https://www.printables.com/model/748665-fully-parametric-desiccant-spool-holder

However with both of these versions, I had to keep track of where my non conductive part picking tweezers were to be able to open them.     That worked great for years.

As a result of a mass reload of desiccant on all my spools, and in the middle the tweezers went missing (thanks to one of the two cats who just love to carry stuff all over the house).  It dawned on me there had to be more universal way to open these up for checking the desiccant and replacing if necessary.  

I figured a socket would be the obvious solution, but what size?   The answer was obvious, 7 mm as I always have my socket torque wrench, and it's kept in the printer enclosures so will be far less likely to get hauled off as it's not something Fluffy or Cute Ass Tiny Baby Kitty are likely to be able to pick up and abscond with.

So as a result, we have R3, the Easy Open version, thus relieving the part picking tweezers to their intended function of fishing heat set inserts and nuts and whatnot out of containers.

Printing:

I've included the STEP, 3MF and a PrusaSlicer Project file that will run 15 sets of this in a single print on an XL.  

I slice at 0.25 mm layer heights and use variable height ranges where the threads are (dropping to 0.2mm for those areas).

This variant is set up for a 0.4mm nozzle.  

If anybody needs a 0.6mm nozzle optimized version let me know as the source file is all parametric, but it won't actually print much faster than the 0.4 will due to the geometry of all the holes.   You'd shave off a little time due to the 0.32 vs 0.25 normal layer height but not a whole lot as you'd still need to roll back to 0.2mm LH's in the thread regions.