{"product_id":"mellow-ldo-nema17-stepper-motor-42sth48-2804ah-long-shaft-voron-vzbot-2pack","title":"Mellow 2-Pack LDO Nema 17 Stepper Motor 42STH48 Long Shaft Voron","description":"\n\u003ch2\u003eMellow 2-Pack LDO Super Nema 17 Stepper Motors — 42STH48-2804AH(40R) Long Shaft\u003c\/h2\u003e\n\u003cp\u003eUpgrade your 3D printer's XY motion system with the \u003cstrong\u003eMellow LDO 42STH48-2804AH(S40R) Nema 17 Stepper Motors\u003c\/strong\u003e — a high-performance, high-torque motor set engineered specifically for demanding builds like \u003cstrong\u003eVoron\u003c\/strong\u003e and \u003cstrong\u003eVzBoT\u003c\/strong\u003e. This pack includes \u003cstrong\u003e2 motors\u003c\/strong\u003e, ready to drop into your long-shaft bracket mounts without any additional assembly.\u003c\/p\u003e\n\n\u003ch3\u003eWhy Choose the LDO 42STH48-2804AH?\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eExtended 40mm Long Shaft:\u003c\/strong\u003e The 40mm shaft allows you to add a support bearing at the far end of your motor mount bracket, dramatically reducing lateral stress on the motor shaft. This prevents shaft flex and deformation — keeping your motion geometry accurate over thousands of print hours.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh Torque Output:\u003c\/strong\u003e The 48mm body length delivers generous torque for fast, precise XY movement, making it ideal for CoreXY and belt-driven systems.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-Temperature Rated (AH Series):\u003c\/strong\u003e The \"AH\" designation means this motor is built to operate reliably when the combined ambient and motor temperature stays within \u003cstrong\u003e180°C\u003c\/strong\u003e — perfect for enclosed, high-speed printing environments.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e1.8° Step Angle:\u003c\/strong\u003e Standard 1.8° stepping gives you predictable, fine-resolution positioning across the full travel range of your printer.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e5mm Round Shaft with Tight Tolerances:\u003c\/strong\u003e The precision-ground 5mm shaft minimises the gap with timing pulleys and synchronous wheels, reducing backlash and improving dimensional accuracy in your prints.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePlug-and-Play Compatibility:\u003c\/strong\u003e Designed to work with Voron 2.4, Trident, VzBoT, and similar DIY CoreXY platforms that use Nema 17 stepper motors with long-shaft mounts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e LDO-42STH48-2804AH(S40R)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFrame Size:\u003c\/strong\u003e Nema 17 (42mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBody Length:\u003c\/strong\u003e 48mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStep Angle:\u003c\/strong\u003e 1.8°\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShaft Diameter:\u003c\/strong\u003e 5mm round\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShaft Length:\u003c\/strong\u003e 40mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMotor Series:\u003c\/strong\u003e AH (High-Temperature)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMax Combined Operating Temperature:\u003c\/strong\u003e 180°C\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAssembly Required:\u003c\/strong\u003e No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e Made in Mainland China\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat's in the Box\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2 × LDO-42STH48-2804AH(S40R) Nema 17 Stepper Motors\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCompatible Builds\u003c\/h3\u003e\n\u003cp\u003eThese motors are an excellent choice for builders and upgraders working on:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eVoron 2.4 \/ Voron Trident\u003c\/li\u003e\n  \u003cli\u003eVzBoT high-speed CoreXY printers\u003c\/li\u003e\n  \u003cli\u003eAny Nema 17 long-shaft bracket system requiring precision XY drive motors\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eYou May Also Like\u003c\/h3\u003e\n\u003cp\u003eWhile you're upgrading your printer, check out these related workshop essentials:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/10-pack-65mm-oscillating-multi-tool-saw-blades-high-carbon-steel\"\u003e10-Pack 65mm Oscillating Multi-Tool Saw Blades | Carbon Steel\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/nitrile-work-gloves-anti-slip-full-finger-5-pair\"\u003e5-Pair Nitrile Work Gloves – Anti-Slip Full Finger Safety\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/ball-end-hex-screwdriver-bit-magnetic-reduced-shank-steel\"\u003eBall End Hex Screwdriver Bit – Magnetic Reduced Shank Steel\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/eye-face-protection\" target=\"_blank\" rel=\"noopener\"\u003eOSHA on eye and face protection\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: Are these LDO Nema 17 stepper motors compatible with Voron 2.4 and VzBoT builds?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. The LDO 42STH48-2804AH(S40R) motors are specifically engineered with the 40mm long shaft required by Voron and VzBoT long-shaft XY motor mounts. They are a popular drop-in upgrade choice for both platforms.\u003c\/p\u003e\n\u003ch4\u003eQ: Why does the long shaft design matter for 3D printer stepper motors?\u003c\/h4\u003e\n\u003cp\u003eA: The extended 40mm shaft allows you to add a support bearing at the distal end of the motor bracket. This bearing absorbs the lateral belt tension that would otherwise stress the motor's internal bearing, reducing the risk of shaft flex, long-term wear, and dimensional drift in your prints.\u003c\/p\u003e\n\u003ch4\u003eQ: What does the \"AH\" designation mean on these LDO stepper motors?\u003c\/h4\u003e\n\u003cp\u003eA: \"AH\" indicates that LDO has used high-temperature-rated winding insulation and internal components. The motor is rated to operate stably as long as the sum of ambient temperature and motor surface temperature does not exceed 180°C — making it well-suited for enclosed printer chambers running at elevated temperatures during high-speed printing sessions.\u003c\/p\u003e\n\u003ch4\u003eQ: How many motors are included in this listing?\u003c\/h4\u003e\n\u003cp\u003eA: This listing includes a pack of \u003cstrong\u003e2 (two)\u003c\/strong\u003e LDO-42STH48-2804AH(S40R) Nema 17 stepper motors — enough to cover both XY drive positions in a standard CoreXY printer build.\u003c\/p\u003e\n\u003ch4\u003eQ: What shaft diameter do these motors use?\u003c\/h4\u003e\n\u003cp\u003eA: These motors feature a \u003cstrong\u003e5mm diameter round shaft\u003c\/strong\u003e. The tight manufacturing tolerances on the shaft minimise the clearance gap with standard GT2 timing pulleys and synchronous wheels, reducing rotational backlash and improving overall print accuracy.\u003c\/p\u003e\n\u003c!-- production-packaging-notice --\u003e\n\u003ch3\u003eProduction \u0026amp; Packaging Notice\u003c\/h3\u003e\n\u003cp\u003eTo maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Are these LDO Nema 17 stepper motors compatible with Voron 2.4 and VzBoT builds?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. The LDO 42STH48-2804AH(S40R) motors are specifically engineered with the 40mm long shaft required by Voron and VzBoT long-shaft XY motor mounts. They are a popular drop-in upgrade choice for both platforms.\"}}, {\"@type\": \"Question\", \"name\": \"Why does the long shaft design matter for 3D printer stepper motors?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The extended 40mm shaft allows you to add a support bearing at the distal end of the motor bracket. This bearing absorbs the lateral belt tension that would otherwise stress the motor's internal bearing, reducing the risk of shaft flex, long-term wear, and dimensional drift in your prints.\"}}, {\"@type\": \"Question\", \"name\": \"What does the \\\"AH\\\" designation mean on these LDO stepper motors?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"\\\"AH\\\" indicates that LDO has used high-temperature-rated winding insulation and internal components. The motor is rated to operate stably as long as the sum of ambient temperature and motor surface temperature does not exceed 180°C — making it well-suited for enclosed printer chambers running at elevated temperatures during high-speed printing sessions.\"}}, {\"@type\": \"Question\", \"name\": \"How many motors are included in this listing?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This listing includes a pack of 2 (two) LDO-42STH48-2804AH(S40R) Nema 17 stepper motors — enough to cover both XY drive positions in a standard CoreXY printer build.\"}}, {\"@type\": \"Question\", \"name\": \"What shaft diameter do these motors use?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"These motors feature a 5mm diameter round shaft. The tight manufacturing tolerances on the shaft minimise the clearance gap with standard GT2 timing pulleys and synchronous wheels, reducing rotational backlash and improving overall print accuracy.\"}}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"BreadcrumbList\", \"itemListElement\": [{\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/wb8bmu-rg.myshopify.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Home page\", \"item\": \"https:\/\/wb8bmu-rg.myshopify.com\/collections\/frontpage\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"Mellow 2-Pack LDO Nema 17 Stepper Motor 42STH48 Long Shaft Voron\", \"item\": \"https:\/\/wb8bmu-rg.myshopify.com\/products\/mellow-ldo-nema17-stepper-motor-42sth48-2804ah-long-shaft-voron-vzbot-2pack\"}]}\u003c\/script\u003e","brand":"Xpnd","offers":[{"title":"Default Title","offer_id":67748392075501,"sku":"\u003cnone\u003e","price":209.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0840\/1269\/5789\/files\/S63aeca8cc4fa4279a896d6a7c9fe8495l.webp?v=1791895704","url":"https:\/\/xpndservice.com\/products\/mellow-ldo-nema17-stepper-motor-42sth48-2804ah-long-shaft-voron-vzbot-2pack","provider":"XPND","version":"1.0","type":"link"}