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Printable Horizontal Filament Spool

by Spacexula, published

Printable Horizontal Filament Spool by Spacexula Jul 14, 2010
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Summary

This is a directive of Makerbot's Horizontal Filement Spool. http://www.thingiverse.com/thing:3116. It takes about 3 hours to print, and the size can be adjusted to any footprint depending on how long you make the rod. It is designed to 8mm Metric, but my build is using 5/16, which works perfectly well, so no need to have two versions.

You can see what it looks like in this video:
http://il.youtube.com/watch?v=N4j2pJzM13Q

The HeeksCAD file is the raw solids before I chaffered (Some of the blocks might be a little off, it's before I finished it up for upload), so all can be modified completely. There is no Tube feeder included in that file because it's so easy to throw together (2 8mm cylinders, 1 12x12x22 block, and a 2 booleans, 2 minutes work in Heekscad)

Instructions

(M8 can be substituted with no ill effects)

3 yards 5/16 rod
1 4\" electrical PVC pipe coupling (center of spool)
2 round disks of plastic, the harder the better, no need to the top to be nearly as big as the bottom.
3 foot 1/4 inch OD tubing
2 1/4 inch wing nuts
2 5/16 washers
64+- 5/16 nuts
Epoxy for spool (remember don't epoxy the top, you need it to come off, don't ask why I have to say this)
5 608 skate board bearings

My unit is ruffly the same size as the Makerbot Filiment spool, and I cut the Rod in the following pattern

6 315mm (outside and 2 bottom support rods
4 115mm (4 bearing rods)
1 135mm (spool rod)

You will need to run a drill though the tube where the wing nuts grab it so it doesn't add friction.

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I have switched to PFTE tubing, to try to gain more reliablity. will update with how it goes.

Can be found cheap here:

http://www1.mscdirect.com/CGI/NNSRIT?PMPXNO=1905320http://www1.mscdirect.com/CGI/...
&
amp;PMT4NO=0

Man you read my mind, I was thinking of doing something almost exactly like this to mount under my RepRap.

Funny thing is it would be perfect for a Rapman or Darwin, it would sit perfectly under the build area. It also would fit under a Mendel

Hey, I'm working on a RepRap specific version of this, you can follow the development on the RepRap wiki page I created http://reprap.org/wiki/Filament_Spindlehttp://reprap.org/wiki/Filamen...

I also came up with a BOM for McMaster that I posted there. I think it might be possible to make a stackable MakerBot sized one for under $50 if you make your own spool... making it fit under a Mendel would need some longer rods.

I have some questions, for instance how are you feeding the filame
nt into the tube using just wing nuts? I think I found the tube fitting on McMaster that MakerBot uses for their box which I'm going to try. Also I realize it would be cheaper to make a spool myself, but would this pre-made spool fit? http://www.mcmaster.com/#2381t15http://www.mcmaster.com/#2381t...

Mine is much simpler than Makerbots. Feed the 1/4 inch tube though the hole in the "T Hold". Place a wing nut on both sides. the Thold is held onto one of the verticle threaded rods by 2 bolts. Be sure to run a drill inside the tube at the 2 wing nuts, they sqeeze the tube a little adding friction. Nothing a few seconds of a 1/8 inch drill bit will not fix.

Yeah, just have to use slightly different sized rods to mount under a Mendel. To line up with the connectors you'd want it to be 370mm wide and 406mm long. Should be easy to design some kind of connector to attach it to the Mendel frame vertexes. I'll definitely give this a try as soon as I get my Mendel working.

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