The Universal Spool Holder - Main Page
by jjpowelly, published
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This is the main page for my universal spool holder design... This page contains every single file I have made and every derivative of the holder... I'm going to lay out instructions on how to get the perfect fit for your spools in the instruction tab... You can also watch the YouTube video below where I explain everything you need to know...
There are three "sizes" (different length arms) for this spool holder... Every arm length is on this page in STL form, but to make it simpler and to avoid confusion, I made three separate pages for each sized holder (Small, Standard, Oversized)... When you watch the video or read the instructions you know what measurements to take to get the perfect fit... On a side note, if you want a truly, all around "Universal" holder - you can simply print two "OverSized" Arms and 110mm Rods... This will fit damn near every spool - it just wont be a tailored fit - and thus wont look pretty... This is why I decided to make three sizes - strictly for aesthetic reasons.
This is a full redesign of my popular, but old and relatively weak spool holder that I designed nearly two years ago...
Old, Obsolete Spool Holder:
This new design is 100% better - I completely redesigned my screws and spinner bolts for better tolerance for 3D Printing... My old screws were good if they were machined, but they were way too fine to be 3D printed well... So I made the threading much better and made the screws much stronger... I also added a lot of structural features that I explain in the video...
Here's a list of what I did in the new design.
Made both arms (the base and the spinner) 2.5mm shorter in height, I also added fillets to every corner so every contour is nice and rounded.
Redid the bolt pattern and made that easier on the hand while spinning the spinner bolt.
Increased the diameter of the screws and added 45 degree chamfers for strength... Screws are very strong now.
Redid all the threading... This will thread smooth and tight right off the printer - I had 100% success rate on prints.
- Added a hole on the lower Rods to hold ends of filament to keep them from unraveling or raveling in - resulting in getting the spool tangled up.
This is now about a 33% decrease in total print time from my old design... Overall, it should take about 6-7 hours to print an entire holder on a standard .2mm layer setting... But you can speed it up by going .3mm and everything will be perfect... Infill is not a big issue... 15-20% should do it... If you want everything to look nice on the outside - do 3 perimeter shells.
Other than all of that - this should work for everyone and will fit on 95% of spools... The only spool I know doesn't fit on this univeral holder is Taulman brand spools... But never fear, I made a spool holder specifically for Taulman Spools...
You can find the Taulman spool holder here... http://www.thingiverse.com/thing:938437
**I hope you find this spool holder useful... Thanks for reading... ENJOY!!!
The instructions to get a good fit are pretty simple....
Find a spool you want a holder for.
In the center of the spool there will be a hole... This hole will have the top rod going through it. You need to figure out which sized top rod you need - a big one or a small one - most spools (90%) have a hole of around 50mm in diameter... However, some (like hatchbox) have a smaller hole of around 30mm...
If your hole is less than 50mm but greater equal to than 30mm - you're going to need a Small Top arm pair...
If your hole is greater than or equal 50mm - you're going to want a Big Top arm pair... (This will be most spools)
Now you're going to need to figure out what sized arms you should use...
Take your spool, lay it flat, and now measure the full outer diameter of the spool from end to end... All the files needed are on this page - but I'm going to give you direct links to the individual pages so you don't accidentally get the wrong one.
If your spool is less than or around 160mm - you're going to want to print the Small size...
If your spool is greater than 160mm but less than or around 200mm - you're going to want to print the Standard size... (This will be about 90% of spools on the market)
Link - http://www.thingiverse.com/thing:943563
If your spool is greater than 200mm but less than 270mm - you're going to want the Oversized size... (This is the size for the big Makerbot spools)
Now that you know what sized top you need and what sized arms you need... You should be good to go on the arms...
But just to be sure...
If you measured and decided you need a Big Top and Standard sized arms... You will need two files for your two arms
If this makes sense - you're all set. Now you can move on to the next step which is rod length
Now, like I said above, you need to figure out what sized rods you should use... But first you need to understand how the rods work.
I have two rods... BigRod & SmallRod
If you determined that you have a BigTop in the first step - you will need to print 2 Small Rods and 1 Big Rod of equal length
If you determined that you have a SmallTop in the first step - you will need to print 3 Small Rods of equal length
Now to determine length...
Lay your spool down on its side and measure the height of the spool from end to end... (If the spool was upward, it would be the width)...
Whatever measurement you get (in metric) - add 10mm to that... So if your measurement was 65mm from end to end - you're going to want 75mm rods... The extra 10mm is to account for the 7-8mm lost when the rod screws into the base arm... I did this to add strength to the holder... But you have to keep it in mind and account for it...
All of my rods are in 5mm increments from 40-110mm in length... So, 40,45,50,55,60,etc... So if you get an odd measurement like 63mm... You'll add 10mm to get 73mm... What you will need to do is simply round up and take the 75mm rods... The exception to this rule is Hatchbox - I made a specific 63mm rod for Hatchbox and it is annotated in the file name of the STL...
Well that's it I hope you enjoy the spool holder!!!
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The Universal Spool Holder - Main Page by jjpowelly is licensed under the Creative Commons - Attribution - Share Alike license.
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