{"product_id":"the-splice-line-3dsway-ptfe-filament-connector","title":"The Splice Line | 3DSWAY PTFE Filament Connector, 1.8mm ID","description":"\u003cdiv class=\"product-narrative\"\u003e\n\u003cp\u003eEvery 3D printing failure has a cost, and the cost is rarely the filament. It is the twelve hour print that stopped at eighty percent, the spool that ran out at hour nine, the colour change you talked yourself out of because re-threading the whole PTFE path sounded like a twenty minute job. The waste is time, and time is the only material a print farm cannot buy back.\u003c\/p\u003e\n\u003cp\u003eThe Splice Line is a 37mm PTFE connector with a 1.8mm inner diameter and a 2.6mm outer diameter: the exact bore that 1.75mm filament passes through without drag and without play. You cut the PTFE tube, seat a connector, and join two lengths of filament or two lengths of tube in a straight line. No re-threading the extruder. No scrapping a part that was already six hours into a nine hour print. The 3DSWAY branding matters here because bore tolerance is the whole product: a connector that runs two tenths of a millimetre wide introduces wobble at the melt zone, and wobble shows up as surface artefacts on the finished part.\u003c\/p\u003e\n\u003cp\u003eSold in trays of 100 or 200, these are consumables in the honest sense. Print farms keep a bin of them next to the spool rack, because the moment you need one is the moment you cannot wait for one. The PTFE body is chemically inert and heat stable, so it does not degrade against the hot end the way a printed or generic plastic splice would.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eA print that finishes is worth more than a filament that is cheaper.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\u003chr style=\"margin:24px 0;border:0;border-top:1px solid #eee;\"\u003e\u003cdiv class=\"product-features\"\u003e\n\u003ch3\u003eWhat The Bore Tolerance Buys You\u003c\/h3\u003e\n\u003cul style=\"list-style:none;padding:0;\"\u003e\n\u003cli style=\"padding:8px 0;\"\u003e✦ 1.8mm inner diameter matched to 1.75mm filament with no drag and no play\u003c\/li\u003e\n\u003cli style=\"padding:8px 0;\"\u003e✦ 2.6mm outer diameter that seats in standard PTFE tube fittings\u003c\/li\u003e\n\u003cli style=\"padding:8px 0;\"\u003e✦ 37mm body length for a straight, aligned splice\u003c\/li\u003e\n\u003cli style=\"padding:8px 0;\"\u003e✦ PTFE construction: chemically inert and stable against hot end temperatures\u003c\/li\u003e\n\u003cli style=\"padding:8px 0;\"\u003e✦ Joins filament ends or repairs a cut PTFE tube without re-threading the extruder\u003c\/li\u003e\n\u003cli style=\"padding:8px 0;\"\u003e✦ Tight bore tolerance to avoid wobble at the melt zone\u003c\/li\u003e\n\u003cli style=\"padding:8px 0;\"\u003e✦ Supplied in 100 piece and 200 piece trays as a working consumable\u003c\/li\u003e\n\u003cli style=\"padding:8px 0;\"\u003e✦ Restores a paused print instead of scrapping it\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\u003cdiv class=\"product-specs\" style=\"margin-top:26px;\"\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul style=\"list-style:none;padding:0;\"\u003e\n\u003cli style=\"padding:10px 0;border-bottom:1px solid #eee;\"\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e 3DSWAY\u003c\/li\u003e\n\u003cli style=\"padding:10px 0;border-bottom:1px solid #eee;\"\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e PTFE filament connector \/ tube joint\u003c\/li\u003e\n\u003cli style=\"padding:10px 0;border-bottom:1px solid #eee;\"\u003e\n\u003cstrong\u003eInner diameter:\u003c\/strong\u003e 1.8mm\u003c\/li\u003e\n\u003cli style=\"padding:10px 0;border-bottom:1px solid #eee;\"\u003e\n\u003cstrong\u003eOuter diameter:\u003c\/strong\u003e 2.6mm\u003c\/li\u003e\n\u003cli style=\"padding:10px 0;border-bottom:1px solid #eee;\"\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 37mm\u003c\/li\u003e\n\u003cli style=\"padding:10px 0;border-bottom:1px solid #eee;\"\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e PTFE\u003c\/li\u003e\n\u003cli style=\"padding:10px 0;border-bottom:1px solid #eee;\"\u003e\n\u003cstrong\u003eFilament compatibility:\u003c\/strong\u003e 1.75mm filament\u003c\/li\u003e\n\u003cli style=\"padding:10px 0;border-bottom:1px solid #eee;\"\u003e\n\u003cstrong\u003ePack sizes:\u003c\/strong\u003e 100 pieces, 200 pieces\u003c\/li\u003e\n\u003cli style=\"padding:10px 0;border-bottom:1px solid #eee;\"\u003e\n\u003cstrong\u003eFunction:\u003c\/strong\u003e Filament splice and PTFE tube repair\u003c\/li\u003e\n\u003cli style=\"padding:10px 0;border-bottom:1px solid #eee;\"\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Bowden and direct drive extrusion paths\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\u003cdiv class=\"product-applications\" style=\"margin-top:26px;\"\u003e\n\u003ch3\u003eWho Keeps Them In Stock\u003c\/h3\u003e\n\u003cp\u003ePrint farms use them as spool-change hardware: splice the tail of one spool to the head of the next and keep printing. Hobbyists use them to salvage the last metre of a colour they will not buy again. Maintenance technicians use them when a Bowden tube has been cut too short during a hot end swap and a replacement tube is days away, which is the scenario where a two dollar part saves a week of downtime.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"product-faq\" style=\"margin-top:26px;\"\u003e\n\u003ch3\u003ePrinter Questions\u003c\/h3\u003e\n\u003cdiv style=\"margin-bottom:15px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eWhat filament diameter does this fit?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e1.75mm filament. The 1.8mm bore gives clearance for the filament without the play that a wider bore would introduce.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:15px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use this to join two PTFE tubes?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. It is a straight connector for both filament splicing and tube repair, and the 37mm length keeps the joint aligned.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:15px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eWill the splice pass through my extruder?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA spliced filament joint can pass through most paths, but feed it by hand through the extruder gears rather than letting the motor pull a cut end into the drive. Trim the filament ends square before joining.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:15px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eIs PTFE safe at hot end temperatures?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePTFE is stable well beyond the operating range of standard hot ends, which is why it is the material used for tube liners in the first place.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:15px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eHow many should I keep on hand?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePrint farms keep a hundred in stock. A single spool change can consume one, and the cost of not having one is a failed print.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:15px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eAre these reusable?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThey are consumables. A connector that has been used to join filament can be reused for a tube repair, but treat them as stock rather than as a tool.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003cdiv class=\"product-gallery\" style=\"margin-top:30px;text-align:center;\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/S7b410a91a3ae4e329c89a2ec11cd3595i_6345daf0-c421-43e2-8c9a-294ffe86a395.webp?v=1738370609\" alt=\"3DSWAY 20\/100pcs 3D Printer Filament Connector PTFE tube Fil\" style=\"max-width:100%;height:auto;margin:8px 0;border-radius:4px;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/S46cd3154307e4131bcccdfdd0065ecc1X_71e95a02-804c-44c3-af6c-aaebc8d74923.webp?v=1738370608\" alt=\"3DSWAY 20\/100pcs 3D Printer Filament Connector PTFE tube Fil\" style=\"max-width:100%;height:auto;margin:8px 0;border-radius:4px;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/S7adfb395f53a4503a1264a8f7c4edb38G_abf5348d-7247-4634-be35-d9d8805d0af1.webp?v=1738370609\" alt=\"3DSWAY 20\/100pcs 3D Printer Filament Connector PTFE tube Fil\" style=\"max-width:100%;height:auto;margin:8px 0;border-radius:4px;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/Sbec67a7037514ba8b140d78f1a333193r_2a5a1217-bed0-4f23-b693-089e49f6254a.webp?v=1738370609\" alt=\"3DSWAY 20\/100pcs 3D Printer Filament Connector PTFE tube Fil\" style=\"max-width:100%;height:auto;margin:8px 0;border-radius:4px;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/Sb3e49dc9d5644a96a8b7959f3f97af91R_676e4d38-9fa3-42fc-b54c-6d672328ca2e.webp?v=1738370608\" alt=\"3DSWAY 20\/100pcs 3D Printer Filament Connector PTFE tube Fil\" style=\"max-width:100%;height:auto;margin:8px 0;border-radius:4px;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/S662d237338b0476688619d9f81fb6b84P_5cf5e050-89da-4d76-a3e1-9ff68e4f0ce5.webp?v=1738370608\" alt=\"3DSWAY 20\/100pcs 3D Printer Filament Connector PTFE tube Fil\" style=\"max-width:100%;height:auto;margin:8px 0;border-radius:4px;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/S7b410a91a3ae4e329c89a2ec11cd3595i_0383efe9-3513-44a0-a578-3c67b9041a5d.webp?v=1738370609\" alt=\"3DSWAY 20\/100pcs 3D Printer Filament Connector PTFE tube Fil\" style=\"max-width:100%;height:auto;margin:8px 0;border-radius:4px;\"\u003e\n\u003c\/div\u003e\u003cdiv class=\"product-promise\" style=\"margin-top:30px;padding:22px;background:#fafafa;border-left:3px solid #1a1a2e;\"\u003e\n\u003ch3 style=\"margin-top:0;\"\u003eThe EastSupplier Promise\u003c\/h3\u003e\n\u003cp\u003eWe buy the way a workshop buys: one supplier, one standard, no surprises at the port. Every listing is inspected before it is packed, documented in English, and shipped with a real person on the other end of the message. If a piece arrives wrong, damaged, or simply not as described, we replace it or refund it. You are not buying a lottery ticket with a tracking number.\u003c\/p\u003e\n\u003cp\u003eQuestions on bulk quantities, mixed pallets, or recurring supply? Write to us and a human answers within one business day.\u003c\/p\u003e\n\u003c\/div\u003e\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"Product\", \"name\": \"The Splice Line | 3DSWAY PTFE Filament Connector, 1.8mm ID\", \"sku\": \"1005006321813053-100pcs\", \"description\": \"Every 3D printing failure has a cost, and the cost is rarely the filament. 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