Hello to each,
Has anyone used one of these filament splicers or one similar and found them to be of use ?
Many thanks for your replies.
Yes I have one (bought it at prelaunch). It comes with PTFE sleeves which on the instructions it indicates that you cut off with every splice, being the contrarian I choose not to and wind it off then end of the reel. I have reused the tube about 10 times, you get 200 so I expect them to last longer than 3DP to be a technology 
It seems to work as advertised, but you need fairly dextrous hands, but there are printed aids should that not be the case (see the Sunlu users facebook page). It should be noted that it needs the 2amp USB to run so it might not run off a USB socket on a laptop.
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Hello Bonfireman,
Thank you for your reply.
I simply came across an advert for it whilst looking for something else and thought “ooooo” that is interesting; could make some colour changes a bit differently with that.
Hopefully my fingers are not too fat. I will have to give one a try in the new year.
I was wondering what the 200 sleeves were about.
Power supplies are something I have an abundance of, apart from a couple of beefy powerbanks.
Cheers.
You put the sleeve over the 2 ends that you are splicing. There is a little heated pad that you sandwich the sleeve in. A few seconds later it i will fuse the 2 ends and the sleeve keeps the molten bits in roughly the right proportions. I had a load of end of reels to make a new reel. I printed a reel winder that I adapted from Thingiverse. YT video
TPU is a little more tricky to join, it has to be at about 200C and you have to wait quite some time for it to cool before moving/removing the PTFE, but it works.
Merry Christmas to you to, don’t drown in the Yule Tide if you are off out surfing.