Simple Smooth Spool Holder ! Updated !

by makecoolthings, published

Simple Smooth Spool Holder ! Updated ! by makecoolthings Aug 29, 2015

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Inventor Fusion 360

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2017/07/25: Wow! Sorry I've taken so long and been so quiet (you should see my blog!) but...life happens! I've uploaded the new version of the spool holder that is a single interchangeable piece, so you just print four of them and you're good to go! I put the old version in a zip for safekeeping so Thingiverse wouldn't auto-generate images for those objects anymore. I'll be updating the assembly drawing soon!

Other changes made to the design: Went from inch to metric, so I rounded out the dimensions just a little. And I removed an unnecessary hole that was doing nothing but adding perimeter-printing time.

Previous Update
2017/02/01: I've been meaning to do this for a while, but I've had a lot of projects going on, as part of my return to actively designing for Thingiverse, I'm going to update my first (And very popular!) Thing.

First and foremost, I'm going to remake it in Fusion360, because I'm transitioning over from Inventor. But I'm also going to incorporate the very common sense feature included in dara's remix design; namely, making a single part that can be used as A or B...I don't know how I didn't think of it, I handle lots of items designed like that every day! Don't worry though, that'll be it, it'll be basically identical, just without the need to print two different parts. These are still fantastically simple spool holders, and I still use mine!

Original Text:
This is a spool holder I designed out of necessity back in March, not long after I got my printer. I consider it to be the first 'real' part I made. Print two sets of parts for one complete spool holder. You will need FOUR common 608 bearings, a.k.a. 'skate bearings'.

It uses standard bearings that most Makers probably already have a drawer full of and that makes the spool rotate super-smooth. It's also relatively fast-printing, and you can get away with printing it at as low a resolution as you'd like to make it go faster. (I'd recommend not skimping on infill though.)

It should fit any spool, so long as the flange of the spool isn't thicker than the width of the bearing... And out of 8 different spool types I have, I haven't found one that didn't fit. (Even a mini spool wasn't small enough to bottom-out between the bearings.)

Print Settings


CTC-3D Dual Extruder (Bizer)






0.25mm or larger


15% or more. Triangle or hexagon/fast-hexagon pattern recommended.


IMPORTANT: If your printer doesn't print dimensionally-accurate parts, you're going to have a bad time. The bosses are 8mm OD, to match the ID of a 608 bearing, and the mating holes are 7.9mm ID... So if your slicer has an 'Horizontal Size Compensation' setting (Simplify3D) this would be the time to use it if you need to...

There aren't any real fine details, so feel free to print this at the biggest layer height your printer and material can handle. I wouldn't recommend going any finer than 0.25mm just because it'll increase print times and all the layer ridges might make it harder to press fit stuff.

Triangle pattern infill is great for truss-like structural parts like this.

How I Designed This

How it came about...

I was putting my printer on 14-inch deep wire shelving, but it would only fit without the filament spools mounted on the back. I decided the thing to do would be to mount the spools on the shelf above, and run the filament down to the printer...so I'd need to make spool holders!


For one complete spool holder you need to print and assemble two sets of parts, and you will need four common 608 bearings.

  1. Print four duplicates of the part. (Version 5)

  2. Press-fit 608 bearings onto bosses on each part.

  3. Press-fit the halves together. (Should also be a tight fit, might not get them apart again.)

  4. ???


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One of the nicest types of spoolholders! I'm printing 12 sets (thats 12 x 4 ). Can fit 10 on my buildplate.

I have cheap semi-airtight boxes that can hold 5 spools with these spoolholders. Makes storing and switching fillament a lot easier! thanks.

(Sorry, I meant to reply as soon as I got the notification, but then the page got buried in the 1200 tabs I apparently have open...) Sounds awesome! I've been working on setting up a climate-controlled container over my printer, with Bowden tubes running down to the print head. Hope my spool holders help! :D

I printed these in PLA. A 'tight fit' is a bit of an understatement. I could simply not get the bearings to fit =/

I'm sorry to hear it gave you some trouble. If you don't mind, what slicer did you use and what were the settings for number of perimeters? (I see you already listed layer height and infill in your Make) Because this certainly doesn't seem to be typical of the results people have been getting, and it'd be good to nail down the cause.

Looks like one more reason for me to offer an alternate version held together with a nut and bolt, when I do the redesign, as the variances from printer to printer make the tight tolerances for press-fitting less than idea... (I've been sidetracked with some really cool projects, and haven't had a chance to get to it yet!)

I really like the blueprint, do you mind share how you created that image? :D

Sure thing! :) I export the drawings from Autodesk Inventor as a PDF, open it in Adobe Illustrator, modified and rearranged the elements of the drawings the way I wanted them, and then paste the vectors into Photoshop and create the final image.

You should be able to follow the same workflow with Fusion 360, and any vector drawing app that can open PDF files. (The Photoshop step isn't really necessary unless you get really fancy with it.)

Speaking of 'really fancy', since then I've gotten into using a 'retro pack' of grunge and damage brushes that I bought on Sellfy to 'age' my blueprint pics. :D http://media.makecoolthings.com/wp/2016/02/pendant_blueprint.jpg

Wow, fast answer and thank you for sharing! That age/worn/distress effect on the pendant blueprint is awesome.

Thanks! I've got some more useful stuff in the works. ;D

Will try those!
I just ordered 10 bearings (608) for under 5$ delivered: http://www.aliexpress.com/item/High-Quality-10PCS-ABEC-7-Deep-groove-ball-bearing-608ZZ-8X22X7-mm-bearing-steel-608-ZZ/32442674267.html
They may be not sooo high quality, but for the low stress in this application surely more than enough...

I'm sure they'll be more than sufficient! :D I chose the 608 bearing because they're the common 'skate bearing' you can get pretty much anywhere for cheap. Enjoy! :)

Nice looking design. very clean and looks well thought out.

What did you use to create the blueprint picture? Was it through whichever CAD program you used (if so, which program)?

Thanks. :D

The lineart and parts list are from an Autodesk Inventor drawing; I exported it as a PDF, and that allowed me to import it into Photoshop as vector graphics. (The first image is a screenshot of the assembly in Inventor)

Great work. (would love to see mod for wall mount and dual flanged bearings as mentioned on reddit)

Best of luck!!!!