1 (edited by jesse 2013-07-11 00:25:43)

Topic: Ultimate Spool

I'm designing a spool that can be printed in one piece.

Here's a prototype, scaled to approximately the size of a cupcake. 

PLA at 0.4 mm layers and 33% infill.

http://i.imgur.com/JWOBRp5l.jpg
http://i.imgur.com/SgkETA2l.jpg

There's plenty of room to remove material.  I haven't started with that yet.


OpenSCAD code

difference(){
    cylinder(r1=10,r2=5,h=5,$fn=50);
    cylinder(r=2,h=10,$fn=50);
}

translate([0,0,10])
difference(){
    cylinder(r1=5,r2=10,h=5,$fn=50);
    cylinder(r=2,h=10,$fn=50);
}


translate([0,0,3])
difference(){
    cylinder(r=5,h=10,$fn=50);
    cylinder(r=2,h=10,$fn=50);
}

The angles are nearly 30, 60, 90.

2 (edited by 2n2r5 2013-07-11 20:09:35)

Re: Ultimate Spool

Jesse,

Nice work so far. I started work on another parametric spool hub yesterday. I included my script. Feel free to use all, some or none of it. Forgive the mess, I kinda threw it together quickly without thinking of others reading it.

A couple features that I was shooting for:

Entirely printable (including center hub)
Interlocking connection in center of hub
Ability to change inside and out side of hub seperately
Tapper ability for both inside and outside of hub
low amount of plastic used
filament holes to hold during spooling then to tie loose end

I know you would like them to be one piece, but maybe you can use something here?

Post's attachments

spoolHubs.scad 3.91 kb, 7 downloads since 2013-07-11 

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SD3 w/ mods:
Glass bed with QU-BD heat pad upgrade, threadless ballscrew w/ 8mm smooth rod, spectra line belt replacement, lawsy MK5 extruder, Lawsy replacement carriage, E3D hotend, Ramps 1.4 w/ reprap discount controller, DRV8825 drivers, 12v 30A PS, Acrylic case, Overkill Y-idlers, Filament alarm, Extruder fan + more.

3

Re: Ultimate Spool

Jesse, out of interest whats the reason for the sloped sides in your spool?

4 (edited by RavensCrest 2013-07-12 17:26:09)

Re: Ultimate Spool

(s)he wants to print it in one piece.. so it will prevent overhang and needs of support

Solidoodle2 with Ceramic tile heated bed http://www.soliforum.com/topic/2544/my- … eated-bed/
"1kg should last for an while" is a lie!

5

Re: Ultimate Spool

2n2r5 wrote:

Jesse,

Nice work so far. I started work on another parametric spool hub yesterday. I included my script. Feel free to use all, some or none of it. Forgive the mess, I kinda threw it together quickly without thinking of others reading it.

A couple features that I was shooting for:

Entirely printable (including center hub)
Interlocking connection in center of hub
Ability to change inside and out side of hub seperately
Tapper ability for both inside and outside of hub
low amount of plastic used
filament holes to hold during spooling then to tie loose end

This looks good.  I think I might grab this and tinker wit it sometime.  What about making the joins symmetrical so that the 2 halves are actually identical?  That way if something breaks, etc you can interchange.

Masterbatch, ABS and PLA Pellets available for UK and Europe.
http://www.emakershop.com/Seller=1324

6

Re: Ultimate Spool

RavensCrest wrote:

he wants to print it in one piece.. so it will prevent overhang and needs of support

ah I see... btw I think "he" is a she....