Filament spool holder with part workbench

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edwilliams16
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Re: Filament spool holder with part workbench

Post by edwilliams16 »

Change

Code: Select all

onepiece();
*end_piece(height2,diam2t,diam2b,rim);
to

Code: Select all

*onepiece();
end_piece(height2,diam2t,diam2b,rim);
to output the other piece.
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M4x
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Re: Filament spool holder with part workbench

Post by M4x »

I think I'm making a mistake... :?
WARNING: Ignoring unknown module 'metric_thread', in file onepiecerod7_endPiece.scad, line 70.
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edwilliams16
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Re: Filament spool holder with part workbench

Post by edwilliams16 »

You need the threads.scad library in the same directory. I didn't notice it was required.
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M4x
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Re: Filament spool holder with part workbench

Post by M4x »

Ah, that looks good now - thank you!

Snip macro screenshot-396862.png
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edwilliams16
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Re: Filament spool holder with part workbench

Post by edwilliams16 »

I've made a lot of these with different shaft lengths to accommodate different spool hole sizes. I burned through over 100 kg of filament of various makes last summer on my printer making face shields for the locals. Worked great.
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M4x
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Re: Filament spool holder with part workbench

Post by M4x »

Great!

Offtopic: I initiated a local face shield production too. Several private and high class business printers where part of it. We had no lasercutter and therefore milled the shields in packs of 5 or 10 I think. Worked out quiete well.
edwilliams16
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Re: Filament spool holder with part workbench

Post by edwilliams16 »

Offtopic:
We developed a design where we 3D printed holders and used hole-punched thick letter-sized transparency material as the shield. Comfort padding was glued on. The local Makerspace got a grant from the county government to cover the cost of materials as we scaled up. One advantage of this particular approach was that packaging volume was greatly reduced.
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Mikeosaurus
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Re: Filament spool holder with part workbench

Post by Mikeosaurus »

Mmmm... Problem with this spool holder...

I've been using it a couple of weeks now... and it's fine once your spool is on and going... but changing the half used filament roll to a different colour is challenging. It rolls so freely, that it starts unraveling, causing concerns for getting tangles. You start tugging the filament out of the bowden, and the roll also just spins itself, loosing the filament winding.

I'm thinking next change I do, to hook a weight onto the edge of the reel to keep it pulling gently.
edwilliams16
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Re: Filament spool holder with part workbench

Post by edwilliams16 »

See above for my solution. https://forum.freecadweb.org/viewtopic. ... 97#p512997 My current version incorporates a run-out sensor.
Screen Shot 2021-07-11 at 8.27.59 AM.png
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EDIT; I now understand the problem is when you change reels. I've not experienced that.
Tek3D
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Re: Filament spool holder with part workbench

Post by Tek3D »

Mikeosaurus wrote: Sun Jul 11, 2021 5:44 pm changing the half used filament roll to a different colour is challenging
I always clamp the filament to the side of the spool with a binder clamp, because I don't want to release the tension on the windings. Even with the stock spool holder and even if it's not turning, the windings loose tension when you pull the filament out. I've also just took the spool off and laid it on the bed before pulling the filament out of the bowden, but even then I still need to hold the filament so it doesn't loose tension.
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