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Airtripper's Pocket Filament Reel Rollers

by Airtripper, published

Airtripper's Pocket Filament Reel Rollers by Airtripper Apr 15, 2012

Description

A simple set of filament reel rollers small enough to fit in your pocket, but big enough to do the job.

OpenSCAD was used to model the reel roller, and the design drivers are:

Use the least amount of non printable hardware as possible.
Easy to set up and put away, as working space is limited.
Small enough to drop in a box for storage and transportation.
To fit any size spool.
All the parts available on Ebay.

Recent Comments

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fwiw, i had TONS of problems w/ this and your bowden.. until i flipped the spool over and fed from the top! figured i'd post it here as it might help someone

 I don't think flanged bearings will fit without enlarging the bearing casings. The skate bearings are so cheap that there would not be much to gain by trying to save bearings.

hello, how would it work with only 4 bearings and some printed flanges like thesehttp://www.thingiverse.co... but wider than the bearing?

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Instructions

To make a pair of reel rollers you need to print four sides, two per unit.
Full prject details here airtripper.com/313/pocket-reel-roller/

Parts List

8 x 608 ZZ [8 x 22 x 7] Roller Skate Ball Bearings. Very cheap off Ebay.
8 x M3 x 30mm Hex Head Screws. Ebay.
16 x M3 washers. Ebay.
8 x M3 Nuts. Ebay.
3D Printer Filament.

Tools Required

3D Printer.
Hex Key to Fit Screw Heads.
Pliers or Spanner of some type.
3MM drill bit to clean out the screw holes in the printed parts.

Comments

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billieblaze on Oct 16, 2013 said:

fwiw, i had TONS of problems w/ this and your bowden.. until i flipped the spool over and fed from the top! figured i'd post it here as it might help someone

caesarsol on Nov 18, 2012 said:

hello, how would it work with only 4 bearings and some printed flanges like thesehttp://www.thingiverse.co... but wider than the bearing?

Airtripper on Nov 21, 2012 said:

 I don't think flanged bearings will fit without enlarging the bearing casings. The skate bearings are so cheap that there would not be much to gain by trying to save bearings.

misan on Nov 9, 2012 said:

Replacing the bearings for F608 ones creates a pulley-like shape that will help keeping the roll sides on track.

Highcooley on Oct 11, 2012 said:

Great design...works perfectly and without too much non printable parts. I like! Thanks.

shai on Jul 4, 2012 said:

Can you upload the model file? Because I cannot open neither reel roller.scad or stl in autocad 2013 or google sketchup or any other program. Am I doing something wrong or are the files wrong?

Leyland on Apr 22, 2012 said:

I just ended up buying the bearings from makerbot the last time I ordered plastic:

http://store.makerbot.com/skat...

You can probably get them 50 cents to a dollar cheaper on ebay if no one else bids.

I used12 zip ties, and it still works even though the case and bearings are not perfectly aligned and the case is barely touching, but then again I have a smaller spool than yours and really don't need double bearings. If I were to modify the print for zip ties I would also add grooves so they fit
around the bearings, that would save 4 zip ties. I also would recommend using cardboard or layers of paper to help add more tension, zip ties may not snap into a perfect size and can end up being loose.

TeamTeamUSA on Apr 16, 2012 said:

Nice! :)

Couldn't you eliminate all nuts and screws by using zip-ties‽ Sorta the way the LM8UU linear bearings are secured: http://www.thingiverse.com/thi....

Airtripper on Apr 17, 2012 said:

The screws help to keep the two halves aligned. The casing will have to be modified to self align if using zip ties. You could stagger the shaft length so that the shafts join inside a bearing and still have identical sides that fit together, using the bearing bore to keep the halves aligned.

freakinhuge on Apr 16, 2012 said:

Or you could use 3mm filament and fuse it together with a soldering iron. This is currently my favorite method. :-D

freakinhuge on Apr 16, 2012 said:

Wow. I clicked the link and was great by a very different 404 due to the peiod at the end..

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