{"product_id":"the-thermal-break-bimetal-heatbreak","title":"The Thermal Break | Bi-Metal Heatbreak for E3D V6 and Prusa MK3","description":"\u003cdiv class=\"product-narrative\"\u003e\n\u003cp\u003eEvery hotend is an argument between two temperatures that must not meet. The heater block wants to be at 250 degrees; the filament path above it wants to stay cool enough that the filament remains a solid rod instead of a soft column. \u003cstrong\u003eThe Thermal Break\u003c\/strong\u003e is the part that adjudicates that argument, and when it is made of a single material it usually loses: heat creeps upward, the filament softens early, retraction starts pulling a rubber band instead of a plug.\u003c\/p\u003e\n\u003cp\u003eThis replacement throat uses bi-metal construction, joining a low-conductivity upper section to a harder, more wear-tolerant lower section. The result is a sharper thermal gradient across a short distance, which is what a direct-drive E3D V6 or Prusa i3 MK3 assembly needs before it will print higher-temperature materials without heat creep. Two bore profiles are offered, threaded and smooth, so the filament path can be matched to the assembly rather than forced to accommodate a generic part.\u003c\/p\u003e\n\u003cp\u003eIt is a consumable in the honest sense: a small part that a printer will eventually need replaced, sold in one, two and three piece packs so a workshop can keep a spare without buying a box of ten. For anyone running abrasive or high-temperature filament through an all-metal hotend, the heatbreak is not an upgrade to consider later. It is the part that decides whether the setup works at all.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eThe hotend's limits are usually written in the part nobody photographs.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\u003chr style=\"margin:22px 0;border:0;border-top:1px solid #eee;\"\u003e\u003cdiv class=\"product-features\" style=\"margin-top:26px;\"\u003e\n\u003ch3\u003ePart Characteristics\u003c\/h3\u003e\n\u003cul style=\"list-style:none;padding:0;\"\u003e\n\u003cli style=\"padding:6px 0;\"\u003e✦ Bi-metal construction separating a low-conductivity upper section from a wear-tolerant lower section\u003c\/li\u003e\n\u003cli style=\"padding:6px 0;\"\u003e✦ Direct replacement fit for E3D V6 hotends and Prusa i3 MK3 assemblies\u003c\/li\u003e\n\u003cli style=\"padding:6px 0;\"\u003e✦ 1.75mm filament compatibility across the range\u003c\/li\u003e\n\u003cli style=\"padding:6px 0;\"\u003e✦ Two bore profiles: threaded version and smooth version\u003c\/li\u003e\n\u003cli style=\"padding:6px 0;\"\u003e✦ Supplied in single, two-piece and three-piece packs for workshop spares\u003c\/li\u003e\n\u003cli style=\"padding:6px 0;\"\u003e✦ Sharper thermal gradient that reduces heat creep on higher-temperature materials\u003c\/li\u003e\n\u003cli style=\"padding:6px 0;\"\u003e✦ DFORCE manufacture, model-specific rather than a generic throat\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\u003cdiv class=\"product-specs\" style=\"margin-top:26px;\"\u003e\n\u003ch3\u003eCompatibility and Specification\u003c\/h3\u003e\n\u003cul style=\"list-style:none;padding:0;margin:0;\"\u003e\n\u003cli style=\"padding:10px 0;border-bottom:1px solid #ececec;\"\u003e\n\u003cstrong\u003eItem type:\u003c\/strong\u003e Heatbreak \/ hotend throat\u003c\/li\u003e\n\u003cli style=\"padding:10px 0;border-bottom:1px solid #ececec;\"\u003e\n\u003cstrong\u003eConstruction:\u003c\/strong\u003e Bi-metal\u003c\/li\u003e\n\u003cli style=\"padding:10px 0;border-bottom:1px solid #ececec;\"\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e E3D V6 hotend, Prusa i3 MK3\u003c\/li\u003e\n\u003cli style=\"padding:10px 0;border-bottom:1px solid #ececec;\"\u003e\n\u003cstrong\u003eFilament diameter:\u003c\/strong\u003e 1.75mm\u003c\/li\u003e\n\u003cli style=\"padding:10px 0;border-bottom:1px solid #ececec;\"\u003e\n\u003cstrong\u003eBore options:\u003c\/strong\u003e Threaded version, smooth version\u003c\/li\u003e\n\u003cli style=\"padding:10px 0;border-bottom:1px solid #ececec;\"\u003e\n\u003cstrong\u003ePack sizes:\u003c\/strong\u003e 1, 2 or 3 pieces\u003c\/li\u003e\n\u003cli style=\"padding:10px 0;border-bottom:1px solid #ececec;\"\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e DFORCE\u003c\/li\u003e\n\u003cli style=\"padding:10px 0;border-bottom:1px solid #ececec;\"\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Replacement throat for all-metal hotend assemblies\u003c\/li\u003e\n\u003cli style=\"padding:10px 0;border-bottom:1px solid #ececec;\"\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e CN\u003c\/li\u003e\n\u003cli style=\"padding:10px 0;border-bottom:1px solid #ececec;\"\u003e\n\u003cstrong\u003eInstallation:\u003c\/strong\u003e Direct replacement, no machining required\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\u003cdiv class=\"product-applications\" style=\"margin-top:26px;\"\u003e\n\u003ch3\u003eWhen This Part Matters\u003c\/h3\u003e\n\u003cp\u003ePrusa i3 MK3 owners chasing heat creep after moving to higher temperatures. E3D V6 builds sold as kits where the supplied throat was the weak link. Print farms that keep spare heatbreaks on the shelf because a clogged printer is a lost day. Anyone running abrasive or filled filament that wears a softer throat faster than the rest of the hotend. In every case the reasoning is the same: the heatbreak is the cheapest part in the assembly and the one that sets the ceiling on what the assembly can print.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"product-faq\" style=\"margin-top:32px;\"\u003e\n\u003ch3\u003eFitment Questions\u003c\/h3\u003e\n\u003cdiv style=\"margin-bottom:15px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What does bi-metal actually change?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA single-material throat conducts heat from the heater block upward along its whole length. A bi-metal part changes the conductivity partway along, so the transition zone is shorter and steeper, keeping the filament solid until it reaches the melt zone.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:15px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Which version do I need, threaded or smooth?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBoth fit the same family of hotends, but the interface differs. Match the version to the assembly you are replacing: a threaded throat engages a matching thread in the heater block, while the smooth version relies on the clamp arrangement. Check your existing part before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:15px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Will it fit my printer?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt is specified for E3D V6 hotends and Prusa i3 MK3 assemblies using 1.75mm filament. If your printer has been modified with a different hotend, measure the existing throat before ordering rather than assuming compatibility.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:15px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Why buy more than one?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eHeatbreaks are consumables. A clog that requires a hard clear, or abrasive filament over a long run, can shorten the life of the part. A two or three piece pack keeps a printer running instead of waiting on a shipment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:15px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does it need special installation tools?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt is a direct replacement part for the specified hotends, so standard hotend disassembly tools are sufficient. Heat the assembly to soften any residual filament before removing the old throat.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:15px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How do I know when a heatbreak needs replacing?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eRecurring clogs above the melt zone, filament that swells and jams shortly after a print starts, or a throat that will not stay clear after cleaning all point to a worn or heat-soaked part. On a machine that has printed for months, replacement is cheaper than diagnosis.\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\/products\/product-image-1696542526.jpg?v=1628125032\" alt=\"The Thermal Break bi-metal heatbreak\" style=\"max-width:100%;height:auto;margin:0 auto 14px;display:block;border-radius:6px;\" loading=\"lazy\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/products\/product-image-1696542530.jpg?v=1628125032\" alt=\"The Thermal Break bi-metal heatbreak\" style=\"max-width:100%;height:auto;margin:0 auto 14px;display:block;border-radius:6px;\" loading=\"lazy\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/products\/product-image-1696542531.jpg?v=1628125044\" alt=\"The Thermal Break bi-metal heatbreak\" style=\"max-width:100%;height:auto;margin:0 auto 14px;display:block;border-radius:6px;\" loading=\"lazy\"\u003e\n\u003c\/div\u003e\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\/\", \"@type\": \"Product\", \"name\": \"The Thermal Break | Bi-Metal Heatbreak for E3D V6 and Prusa MK3\", \"description\": \"Bi-metal heatbreak replacement for E3D V6 hotend and Prusa i3 MK3, 1.75mm filament, threaded and smooth bore versions, packs of 1 to 3.\", \"sku\": \"43767511-3pcs-threaded-version\", \"brand\": {\"@type\": \"Brand\", \"name\": \"DFORCE\"}, \"url\": \"https:\/\/eastsupplier.com\/products\/the-thermal-break-bimetal-heatbreak\", \"offers\": {\"@type\": \"Offer\", \"url\": \"https:\/\/eastsupplier.com\/products\/the-thermal-break-bimetal-heatbreak\", \"priceCurrency\": \"USD\", \"price\": \"43.47\", \"availability\": \"https:\/\/schema.org\/InStock\", \"itemCondition\": \"https:\/\/schema.org\/NewCondition\", \"seller\": {\"@type\": \"Organization\", \"name\": \"EastSupplier\"}}, \"aggregateRating\": {\"@type\": \"AggregateRating\", \"ratingValue\": \"4.8\", \"reviewCount\": \"3\"}}\u003c\/script\u003e","brand":"East Digi Net Platform","offers":[{"title":"3PCS \/ Threaded version","offer_id":40583720927388,"sku":"43767511-3pcs-threaded-version","price":130.43,"currency_code":"USD","in_stock":true},{"title":"1PC \/ Smooth version","offer_id":40583721222300,"sku":"43767511-1pc-smooth-version","price":43.47,"currency_code":"USD","in_stock":true},{"title":"1PC \/ Threaded version","offer_id":40583721386140,"sku":"43767511-1pc-threaded-version","price":43.47,"currency_code":"USD","in_stock":true},{"title":"2PCS \/ Threaded version","offer_id":40583721681052,"sku":"43767511-2pcs-threaded-version","price":86.96,"currency_code":"USD","in_stock":true},{"title":"2PCS \/ Smooth version","offer_id":40583722041500,"sku":"43767511-2pcs-smooth-version","price":86.96,"currency_code":"USD","in_stock":true},{"title":"3PCS \/ Smooth version","offer_id":40583722401948,"sku":"43767511-3pcs-smooth-version","price":130.43,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/products\/product-image-1696542526.jpg?v=1628125032","url":"https:\/\/eastsupplier.cn\/products\/the-thermal-break-bimetal-heatbreak","provider":"EastSupplier Platform","version":"1.0","type":"link"}