2y ago

Designed a robust Master Spool that is easy to print

3d printed threads and snap connectors are nice, but M3 bolts and nuts are more robust and look dope. They also make the model easier todesign print, since you don't have to worry about tolerances as much.

STEP/STL and instructions available here: www.printables.com/model/548770-master-spool

23 comments

What's the purpose of this?
- They've started selling filament without spools to cut down on waste. This is a reusable spool for those filaments.
  
  Who is they and how does this work? Sounds interesting.
  
  Nice, I've thrown out so many spools. Esun has sold filament without spools for a while but my supplier seemed to never have stock.
this looks sweet, will probs try this next time i need a new spool, looks way sturdier than the one I’m using currently
- Just don't try to use it with esun filament. It does not work. Even without the cardboard insert. I tried :(.
  
  I’ll probably take the step and make a couple different variations with different diameters, I have a couple different brands and I’m sure they all have slightly different diameters :D
  
  Variation in refill winding diameter really put me off the master spool concept a few years ago. I printed a well reviewed spool, bought a refill, and the refill was wound around a smaller radius than the spool so it wouldn't fit. Sounds like that hasn't changed much?
I've printed a couple of spools at different sizes, it's really kind of nice to have them. Particularly smaller spools for smaller sample lengths, super worth it.
But another thing you can do is just print a little single-wall cylinder that friction fits inside one of your existing spools, then cut the existing (non-printed) spool in half down the middle and use the cylinder as a friction-fit sleeve to hold the two halves together. That also gives you the same functionality. It's not as cool but it saves on filament? ^\_

23 comments