These reusable spools are simple to print, snap together and nestable making them quite convenient. I originally designed the spool for eSun Refillament. And, have subsequently made another spool for Das Filament (at the request of a user).
The spool consists of the same part which you print twice and then mate together by simply twisting them. There is a detent to hold them in position but you can reverse twist them to separate the halves just as easily. They also can be nested for stacking the same way. But I did a couple of other things that I think are somewhat unique.
The first feature I added is a printable snap-on label card for marking what filament is in the spool. The card also has some slots so if you remove a partially used spool you can tie the card to the partial spool before putting it in storage. The card can snap onto multiple locations and of course on either side (since both halves are identical).
Another feature I added which is out there but I did not like how it was done on the ones I looked at was the ability to add zap straps to the partially used filament roll before removing it from the spool. I made the side slots for inserting the zap strap extend to inside the spool diameter where there is a space for the strap to pass under the filament core. And, then I created offsetting additional space that allows the re-useable spool to be twisted and separated without interference with the now-installed zap strap.
Lastly, I added more holes for inserting the end of the filament for storage. It always bothered me that some of the spools from the manufacturers have very few holes in the sides so you have to unspool some filament to reach the hole. Not a big deal… unless you are OCD. ugh.
SPOOL A: Originally designed for eSun Refillamanet Designed for eSun Refillament Inside Dia. = 92mm Inside Width = 58mm
SPOOL B: Originally designed for Das Filament Designed for Das Filament Inside Dia. = 101mm Inside Width = 46mm
100% printed - no hardware, fasteners, or adhesives required. No support is required.
Print Settings:
Material = I recommend PETG but any material should work.
Nozzle = 0.4mm
Layer height = 0.2mm
Line width = 0.4mm
Wall count = 4 (1.6mm)
Infill = 40%
Ironing = ON (recommended but not critical)
Commercial Licensing is available through my logicalplanet Memberships here on Thangs. I will customize and provide commercial support to members on request.
I am committed to helping everyone get great print results to the extent I can so please contact me if you are having issues I enjoy trying to help resolve those challenges. I welcome requests, suggestions and ideas to help make this and all my products better. Please send me a message any time.
See my blog for more details and other product info… https://www.logicalplanet.com/