Enhanced Tumbler for Retracting Spool Holder

Hey, it's me again! 

After publishing my retracting spool holder box (found here https://makerworld.com/en/models/1233835), i had many requests for changes the tumbler. Most of you have asked for a version with smaller holes because the smaller silica beads make it threw the walls from time to time. 

I was about to just make this small little change, BUT… somehow it escalated to hours of prototyping, CAD work, testing and so on - changing basically everything except the outer dimensions. 

This is NOT a short print for one tumbler, i am aware of that. 
I assume most of you are only using one or a few of my spool holders. Hope it does not bother you too much. V1 is faster and will be kept online!

The left handed threads are there for a reason! Read the description for further details please! 

The main new features:

• you might have guessed it. Smaller holes. :D (max. 1mm instead of 1,6mm)

   

• silica gel beads are actually circulated when the tumbler spins 
  (keeping in mind that i will use them with the AMS HT once it is available)
  This feature does cause some noise, inside a spool cointainer or AMS 

   

• more surface area for the humidity absorption

  ("high airflow" as some call it)

   

• higher friction between tumbler and spool 

  (because this connection is used to spin the spool for retracting) 
  The design still uses left handed threads, so they can not come loose when using the retraction mechanism. 

   

• A cooler look 

  the original does not look very spectacular. i.m.o.
  Halfway into the new version, i was like “ hey that looks a bit like a turbine”. I've then gone all in on that

They can be printed in all kinds of materials. 
Keep in mind that they should be able to withstand the temperatures that are used for drying. 

If you do that, you can leave the tumbler inside the spool for drying and dry the dessicant inside it at the same time!

I recommend the use of ABS-GF. 
The price to temperature resistance ratio is great.  
It prints absolutely flawless on textured PEI, don't use glue, it is not needed. 

If you print these tumblers from PLA or PETG, i would not use them in high temperature blast drying devices (such as the AMS HT).
In this case you should remove the tumbler and dessicant and dry it externally. 

If you use this only as a regular container/tumbler without my retracting box, you can skip the TPU parts! 
They look nice with them though, at least in my opinion. 

Tell me what you think! 

Have a nice day, 

M.I.M