{"product_id":"west3d-printing-mgn9h-1r-150-300-350-400-linear-rails-with-carriages-cna-class-h","title":"West3D Printing MGN9H-1R-150\/300\/350\/400 Linear Rails with Carriages (CNA) \/ Class H","description":"\u003cp\u003eHigh-speed CoreXY and Voron builders understand that standard linear rails often fail under the intense vibration and rapid motion of advanced 3D printing, leading to print artifacts and mechanical wear. Without precision rails designed for these conditions, users face reduced print quality and frequent maintenance.\u003c\/p\u003e\u003cp\u003eThese West3D MGN9H-1R linear rails with carriages are engineered in collaboration with CNA to meet the demands of high-speed, high-vibration 3D printer motion systems. Featuring a heavier pre-load for reduced clearance, stainless steel construction for durability, and grease ports for easy maintenance, these rails deliver a stiff yet smooth glide. The Class H rating ensures exceptional straightness and groove uniformity, making them ideal for Voron 2.4, Trident, and other CoreXY builds requiring precise, reliable linear motion.\u003c\/p\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRail Type\u003c\/td\u003e\n\u003ctd\u003eMGN9H-1R\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLengths Available\u003c\/td\u003e\n\u003ctd\u003e150mm, 300mm, 350mm, 400mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePre-load\u003c\/td\u003e\n\u003ctd\u003eHeavier than standard\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eStainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClass\u003c\/td\u003e\n\u003ctd\u003eClass H (High Precision)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrease Ports\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Printers\u003c\/td\u003e\n\u003ctd\u003eVoron 2.4, Trident, CoreXY Builds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eWhy Upgrade?\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eReduces vibration-induced print defects common in high-speed CoreXY printers like Voron 2.4 and Trident\u003c\/li\u003e\n\u003cli\u003eHeavier pre-load minimizes rail-carriage clearance for improved motion accuracy and repeatability\u003c\/li\u003e\n\u003cli\u003eStainless steel rails resist corrosion and wear, extending the lifespan of your motion system\u003c\/li\u003e\n\u003cli\u003eGrease ports simplify maintenance, ensuring consistent smooth operation over time\u003c\/li\u003e\n\u003cli\u003eClass H precision guarantees straighter rails and tighter groove tolerances for superior print quality\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eBest For:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eVoron 2.4 and Trident builders upgrading to high precision linear rails\u003c\/li\u003e\n\u003cli\u003eCoreXY printer enthusiasts seeking durable, vibration-resistant motion components\u003c\/li\u003e\n\u003cli\u003eUsers replacing standard kit rails with stainless steel, high pre-load alternatives\u003c\/li\u003e\n\u003cli\u003eDIY 3D printer builders requiring rails sized 50mm longer than bed dimensions\u003c\/li\u003e\n\u003cli\u003eHigh-speed 3D printing setups demanding consistent, smooth linear motion\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003ePair With the Right Filament\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eReliable linear motion is essential for printing demanding filaments that require precise layer placement and minimal artifacts.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/supplies3d.shop\/collections\/pla-filament\"\u003ePLA Filament\u003c\/a\u003e — ideal for testing smooth motion and calibration on upgraded rails\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/supplies3d.shop\/collections\/petg-filament\"\u003ePETG Filament\u003c\/a\u003e — benefits from consistent motion to reduce stringing and layer shifts\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/supplies3d.shop\/collections\/tpu-flexible-filament\"\u003eTPU Flexible Filament\u003c\/a\u003e — requires stable motion systems to handle flexible extrusion without artifacts\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"West3D 3D Printing Supplies","offers":[{"title":"150mm \/ S Class \/ Silver","offer_id":52735634374950,"sku":"CNA0559","price":15.99,"currency_code":"USD","in_stock":false},{"title":"150mm \/ H Class \/ Silver","offer_id":52735634407718,"sku":"CNA0560","price":18.99,"currency_code":"USD","in_stock":true},{"title":"300mm \/ S Class \/ Black","offer_id":52735634440486,"sku":"CNA0562","price":21.99,"currency_code":"USD","in_stock":false},{"title":"300mm \/ H Class \/ Silver","offer_id":52735634473254,"sku":"CNA0563","price":23.99,"currency_code":"USD","in_stock":false},{"title":"350mm \/ S Class \/ Silver","offer_id":52735634506022,"sku":"CNA0564","price":22.99,"currency_code":"USD","in_stock":false},{"title":"350mm \/ S Class \/ Black","offer_id":52735634538790,"sku":"CNA0565","price":23.99,"currency_code":"USD","in_stock":true},{"title":"350mm \/ H Class \/ Silver","offer_id":52735634571558,"sku":"CNA0566","price":26.99,"currency_code":"USD","in_stock":true},{"title":"400mm \/ S Class \/ Silver","offer_id":52735634604326,"sku":"CNA0567","price":23.99,"currency_code":"USD","in_stock":false},{"title":"400mm \/ H Class \/ Silver","offer_id":52735634637094,"sku":"CNA0569","price":30.99,"currency_code":"USD","in_stock":false},{"title":"400mm \/ S Class \/ Black","offer_id":52735634669862,"sku":"CNA05691","price":25.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1004\/1986\/2822\/files\/west3d-printing-mgn9h-1r-150300350400-linear-rails-with-carriages-cna-west3d-printing-cna-west3d-624630.jpg?v=1773259402","url":"https:\/\/supplies3d.shop\/products\/west3d-printing-mgn9h-1r-150-300-350-400-linear-rails-with-carriages-cna-class-h","provider":"SUPPLIES3D","version":"1.0","type":"link"}