{"product_id":"extruder-thumb-screw","title":"Extruder Thumb Screw","description":"\u003cp\u003e\u003cstrong\u003eKnurled extruder thumb screw assembly for idler-tension adjustment.\u003c\/strong\u003e This small hardware set includes the hand-adjustable thumb screw, compression spring, and washer\/retainer used to set filament drive pressure on BMG-style extruders and the Voron M4\/Mobius extruder BOM.\u003c\/p\u003e\n\u003ch3\u003eWhy use this instead of a plain screw?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eKnurled head gives you quick, tool-free adjustment of extruder idler pressure.\u003c\/li\u003e\n\u003cli\u003eCompression spring keeps tension controlled while still letting the idler move with the filament path.\u003c\/li\u003e\n\u003cli\u003eWasher\/retainer helps keep the spring located against the printed or molded extruder idler.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAssembly type: \u003cstrong\u003eextruder idler thumb screw, spring, and washer\/retainer\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eThread reference: \u003cstrong\u003eM3 x 0.5\u003c\/strong\u003e on Bondtech\/BMG-style thumbscrew assemblies; confirm against your extruder before ordering.\u003c\/li\u003e\n\u003cli\u003eKnown fit context: \u003cstrong\u003eVoron M4 \/ Mobius extruder BOM\u003c\/strong\u003e and Bondtech\/BMG-style or custom extruders that use this thumbscrew assembly.\u003c\/li\u003e\n\u003cli\u003eFinish: black knurled adjustment screw with spring hardware.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCommon fitment\u003c\/h3\u003e\n\u003cp\u003eThe official Voron M4 sourcing guide lists one thumb screw assembly for the extruder hardware. For BMG-style service parts, pair it with the \u003ca href=\"https:\/\/dfh.fm\/products\/bmg-clone-components-kit\"\u003eBMG Clone Components Kit\u003c\/a\u003e, \u003ca href=\"https:\/\/dfh.fm\/products\/bmg-clone-extruder-gears\"\u003eBMG Clone Extruder Gears\u003c\/a\u003e, or \u003ca href=\"https:\/\/dfh.fm\/products\/extruder-needle-bearings\"\u003eBMG Style Needle Bearings\u003c\/a\u003e when those are the parts you are replacing.\u003c\/p\u003e\n\u003ch3\u003eWhat it is not\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eNot an M4-threaded fastener. Here, \u003cstrong\u003eM4\u003c\/strong\u003e refers to the Voron M4\/Mobius extruder project fitment.\u003c\/li\u003e\n\u003cli\u003eNot a full extruder kit; this is only the thumb screw tension assembly.\u003c\/li\u003e\n\u003cli\u003eNot a universal bed-leveling, panel, or case thumb screw.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"dfh.fm","offers":[{"title":"Default Title","offer_id":39852704694441,"sku":"5870678528","price":2.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0556\/9767\/0313\/files\/thumbscrew.jpg?v=1693730195","url":"https:\/\/formosissima.myshopify.com\/products\/extruder-thumb-screw","provider":"dfh.fm","version":"1.0","type":"link"}