Splicing PLA filament

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GAP
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Splicing PLA filament

Post by GAP » Tue May 06, 2025 11:17 am

Has anybody had experience with splicing PLA filament?
I have a number of reels with small amounts on them that I would like to splice together to get a usable size reel.
Any suggestions welcome.
Graeme
From the home of the Ringbalin Light Railway
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ge_rik
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Re: Splicing PLA filament

Post by ge_rik » Tue May 06, 2025 12:48 pm

I've not tried it, but there are a few methods described here. That Amazon gadget looks interesting.
https://www.3dsourced.com/rigid-ink/how ... -together/

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philipy
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Re: Splicing PLA filament

Post by philipy » Tue May 06, 2025 3:14 pm

I've tried several times using various methods but never had any success. They either don't fuse properly and fall apart, or the joint diameter is over size and won't go into the nozzle. In the end I decided that for the cost of a couple of feet of filament, it's more economical to just bin it than spend hours trying to reuse it.
Alternatively, depending on the design of the printer, its possible to watch it like a hawk and feed a second length of filament into the extruder as the first one runs out. Works best on a printer with a decent length of Bowden tube so you have a small time window to poke it in and catch up with the tail end of the first bit!
Philip

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GAP
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Re: Splicing PLA filament

Post by GAP » Tue May 06, 2025 10:09 pm

I'm looking at this, it is a bit fiddly and wasteful (you have to cut and throw away some ptfe sleeves) but so are most of the others that I have looked at.
https://www.inkstation.com.au/2731/sunl ... iant=28110

Reviews have raised a few issues but this bloke may have found a solution.




Being a cheapskate I am loath to throw away something that may be of use.
I have spliced filament before with success so when I have some spare time I may have another go.
Graeme
From the home of the Ringbalin Light Railway
https://ringbalin-light-railway.blogspo ... -page.html

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