Hatchbox empty spool model for designers

Like? :-D
If this thing made your day better, please click the Like button above. Thank you!
Feel free to PM me if you have any feedback or questions. -CK

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Update: Added .step, igs, and ProE file formats!
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Description:
I've seen a bunch of spool holder designs, but never a model of the spool itself. So, since I use Hatchbox filament and it's a pretty popular brand, I made this Solidworks model for the singular purpose of helping designers make better spool holders.

Enjoy!
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Note:
The .stl's are not designed to be particularly printable.