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frontpagegabe23111 posted Aug 14, 2025 12:21 PM
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frontpagegabe23111 posted Aug 14, 2025 12:21 PM

SUNLU 3D Filament Connector w/ 400Pcs PTFE Sleeve

+ Free Shipping

$31

$56

44% off
Amazon
16 Comments 7,562 Views
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Deal Details
SUNLU 3D Store via Amazon has SUNLU 3D Filament Connector w/ 400Pcs PTFE Sleeve for $55.99 - $25.20 w/ promo code TQADECPJ applied at checkout = $30.79. Shipping is free.

Thanks to Community Member gabe23111 for finding this deal.

Features:
  • Turn into Value: SUNLU Filament Connector can fuse the remaining filament on the spool, maximizing the use of each roll of 3D filament and reducing waste
  • Creative DIY: Filament connector easily fuses filament of the same material but different colors. Create vibrant, personalized 3D prints yourself
  • Fast & Precise Heating: At room temperature, it takes only about 3 minutes to quickly heat up to 185°C, greatly improving efficiency
  • Wide Compatibility: Maximum temperature up to 240°C, which is compatible with a variety of 3D printer filament, such as PLA, PETG, ABS, PA/PC
  • Easy to Use: One-click operation, select the corresponding temperature according to the type of filament, greatly improving the user experience
  • Note: The package does not include a power adapter. We recommend using a 5V 2A adapter to ensure the Filament Connector powers on correctly
  • Safe Design: Filament connector with advanced temperature control technology and high-quality insulation materials to ensure safe use
  • Visual Operation: Built-in visualization window and display screen to monitor the filament connecting process in real time
  • 1.75 mm diameter 3D filament: The diameter of the filament fusing point is 1.75mm, which is suitable for all 3D printing filament 1.75mm
  • Packing List: Filament connector, USB cable, 2 Packs of PTFE Sleeve(400PCS, for fusing between filament and filament), and usage instructions

Editor's Notes

Written by powerfuldoppler | Staff
  • About this deal:
    • Please see original post for additional details & give the WIKI and additional forum comments a read for helpful discussion.
  • About this product:
    • Rating of 4.2 from over 685 customer reviews.
  • About this store:

Original Post

Written by gabe23111
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
SUNLU 3D Store via Amazon has SUNLU 3D Filament Connector w/ 400Pcs PTFE Sleeve for $55.99 - $25.20 w/ promo code TQADECPJ applied at checkout = $30.79. Shipping is free.

Thanks to Community Member gabe23111 for finding this deal.

Features:
  • Turn into Value: SUNLU Filament Connector can fuse the remaining filament on the spool, maximizing the use of each roll of 3D filament and reducing waste
  • Creative DIY: Filament connector easily fuses filament of the same material but different colors. Create vibrant, personalized 3D prints yourself
  • Fast & Precise Heating: At room temperature, it takes only about 3 minutes to quickly heat up to 185°C, greatly improving efficiency
  • Wide Compatibility: Maximum temperature up to 240°C, which is compatible with a variety of 3D printer filament, such as PLA, PETG, ABS, PA/PC
  • Easy to Use: One-click operation, select the corresponding temperature according to the type of filament, greatly improving the user experience
  • Note: The package does not include a power adapter. We recommend using a 5V 2A adapter to ensure the Filament Connector powers on correctly
  • Safe Design: Filament connector with advanced temperature control technology and high-quality insulation materials to ensure safe use
  • Visual Operation: Built-in visualization window and display screen to monitor the filament connecting process in real time
  • 1.75 mm diameter 3D filament: The diameter of the filament fusing point is 1.75mm, which is suitable for all 3D printing filament 1.75mm
  • Packing List: Filament connector, USB cable, 2 Packs of PTFE Sleeve(400PCS, for fusing between filament and filament), and usage instructions

Editor's Notes

Written by powerfuldoppler | Staff
  • About this deal:
    • Please see original post for additional details & give the WIKI and additional forum comments a read for helpful discussion.
  • About this product:
    • Rating of 4.2 from over 685 customer reviews.
  • About this store:

Original Post

Written by gabe23111

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Top Comments

slicerd
332 Posts
86 Reputation
I am tempted to get this but its hard to justify when you can score deals on filament for like $7-8. In order to justify i would need to save the equivalent of 4 rolls of filament. I have a filament scrap box and it has maybe one rolls worth across dozens of old rolls. This doesn't even mention the time/effort/failures this might create. If j could get this for $10 i would be game but its just hard to justify
MG_LIFE
391 Posts
238 Reputation
Note: this splicer is pretty difficult to use. It can be hard to get the filament into the right position. It's still the best splicer out there though.

15 Comments

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Aug 14, 2025 06:13 PM
307 Posts
Joined Feb 2010
tdcarterAug 14, 2025 06:13 PM
307 Posts
Thanks, ordered one!
1
Aug 14, 2025 08:29 PM
731 Posts
Joined Aug 2004
jimhAug 14, 2025 08:29 PM
731 Posts
In for one. Coupon code took a few tries, but it finally stuck. thanks, OP!
1
Pro
Aug 14, 2025 08:57 PM
391 Posts
Joined Jun 2025
MG_LIFE
Pro
Aug 14, 2025 08:57 PM
391 Posts

Our community has rated this post as helpful. If you agree, why not thank MG_LIFE

Note: this splicer is pretty difficult to use. It can be hard to get the filament into the right position. It's still the best splicer out there though.
2
2
Aug 14, 2025 09:09 PM
90 Posts
Joined Jun 2010
live42dayAug 14, 2025 09:09 PM
90 Posts
Got one as well! Thanks!
1
Aug 14, 2025 09:56 PM
332 Posts
Joined Jan 2008
slicerdAug 14, 2025 09:56 PM
332 Posts
I am tempted to get this but its hard to justify when you can score deals on filament for like $7-8. In order to justify i would need to save the equivalent of 4 rolls of filament. I have a filament scrap box and it has maybe one rolls worth across dozens of old rolls. This doesn't even mention the time/effort/failures this might create. If j could get this for $10 i would be game but its just hard to justify
1
Aug 14, 2025 09:58 PM
19 Posts
Joined Jun 2013
trampoline81Aug 14, 2025 09:58 PM
19 Posts
Quote from slicerd :
I am tempted to get this but its hard to justify when you can score deals on filament for like $7-8. In order to justify i would need to save the equivalent of 4 rolls of filament. I have a filament scrap box and it has maybe one rolls worth across dozens of old rolls. This doesn't even mention the time/effort/failures this might create. If j could get this for $10 i would be game but its just hard to justify
it's neat to use if you wanted to make your own rainbow/multicolor filament.I've also used it to splice the remaining spool to a new spool or several rems if what I have left isn't enough to finish a print.
Aug 15, 2025 11:03 AM
12 Posts
Joined Mar 2021
embuhrowAug 15, 2025 11:03 AM
12 Posts
Nice! I've had this filament splicer on my Amazon wishlist for a while. This made me finally pull the trigger on ordering.

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Aug 15, 2025 03:49 PM
874 Posts
Joined Jan 2012
smilesnxtcAug 15, 2025 03:49 PM
874 Posts
It took 2 tries to get it right. 1st attempt was too much pressure at the joint which created a bulge, 2nd was just right. Not too difficult and handy for the times you need it.
Aug 16, 2025 05:04 PM
407 Posts
Joined Jul 2017
ChonklaAug 16, 2025 05:04 PM
407 Posts
I waited too long it is no longer working.

EDIT: Nevermind - it gave me errors but when I went to check out the discount still came up.
Aug 16, 2025 05:27 PM
349 Posts
Joined Apr 2009
MrToymanAug 16, 2025 05:27 PM
349 Posts
Price went down to $26.67 when I added to my cart.
Yesterday 07:51 AM
500 Posts
Joined Apr 2007
bertfelinYesterday 07:51 AM
500 Posts
I don't get why I needed this. Bambu can print with the 2nd roll automatically if the 1st roll runs out
Yesterday 06:53 PM
248 Posts
Joined Mar 2009
zygomaticYesterday 06:53 PM
248 Posts
This or Infinity Flow S1?
Today 05:09 PM
205 Posts
Joined Dec 2010
elwraithToday 05:09 PM
205 Posts
Quote from bertfelin :
I don't get why I needed this. Bambu can print with the 2nd roll automatically if the 1st roll runs out
If you're a poor schmuck like myself who doesn't have an AMS for their printer (Creality K1 Max), this will help you use up a bunch of spool ends and not just throw them away.
Today 06:02 PM
694 Posts
Joined Feb 2014
nuy6n6nnToday 06:02 PM
694 Posts
This is a great product at the wrong time. If this had come out 5 years ago it would have killed it. People had been dying for a way to splice together used filament rolls for a long time. Then the AMS/MMU came along and solved the problem completely.

If you don't have an MMU then maybe this is for you but if you already have a multi color system don't bother.

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Today 09:01 PM
13 Posts
Joined Nov 2012
McScrappyToday 09:01 PM
13 Posts
This filament connector is a real pain to use. It's too small and lightweight. Trying to join filament from 2 different spools is nearly impossible. The filament has to be very straight with no tension from the spools or it'll be moving all over your bench. I used a jig to help hold things in place and that helped some. Getting a good bond will take lots of practice. I'd love a nice easy way to join scraps of filament, but for the time and frustration this causes, it wasn't worth it for me. There's a lot of Youtube videos showing the issues with this unit. I wish I would have watched them before purchasing.
1

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