{"product_id":"honeybadger-mgn9h-stainless-steel-rails","title":"HoneyBadger MGN9H Stainless Steel Rails","description":"\u003cp\u003eCoreXY and high-precision 3D printer builders know that linear rail quality directly impacts print accuracy and smooth motion; poor rails cause layer inconsistencies and mechanical noise that degrade print results. Reliable rails with consistent preload and tight tolerances are essential for maintaining dimensional accuracy and repeatability in demanding printer ecosystems like Voron and RatRig.\u003c\/p\u003e\u003cp\u003eThe HoneyBadger MGN9H Stainless Steel Rails from Fabreeko deliver medium-high custom preload and Class H quality control for superior straightness and parallelism, ensuring smooth, tight motion without the need for degreasing. Constructed from 440c hardened stainless steel with thick 6.5mm guides, these rails are pre-lubed with EP2 grease and designed specifically for high-performance CoreXY and DIY builds such as Voron 2.4, RatRig V-Core, and Annex K3. The integrated carriages are precision matched to the rails, providing a consistent out-of-the-box experience favored by the Voron and RatRig communities.\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\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003e440c Hardened Stainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRail Type\u003c\/td\u003e\n\u003ctd\u003eMGN9H with medium-high preload\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGuide Thickness\u003c\/td\u003e\n\u003ctd\u003e6.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePre-lubrication\u003c\/td\u003e\n\u003ctd\u003eEP2 grease\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClass H QC Tolerances\u003c\/td\u003e\n\u003ctd\u003eStraightness ≤ 0.01mm\/m, Parallelism ≤ 0.016mm\/m, Height variation ≤ 0.02mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCarriage\u003c\/td\u003e\n\u003ctd\u003eIntegrated, non-interchangeable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Printers\u003c\/td\u003e\n\u003ctd\u003eVoron 2.4, RatRig V-Core, Annex K3, CoreXY DIY 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\u003eEnsures smooth, precise linear motion critical for high-quality prints on Voron 2.4 and RatRig V-Core printers\u003c\/li\u003e\n\u003cli\u003eMedium-high preload reduces rail play and vibration, improving layer consistency in CoreXY and Klipper setups\u003c\/li\u003e\n\u003cli\u003ePre-lubed with EP2 grease for maintenance-free operation and longer lifespan without cleaning\u003c\/li\u003e\n\u003cli\u003eClass H quality control guarantees tight tolerances, minimizing mechanical backlash and print artifacts\u003c\/li\u003e\n\u003cli\u003e440c stainless steel construction resists wear and corrosion, ideal for demanding DIY and high-speed printers\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 seeking reliable, high-precision linear rails\u003c\/li\u003e\n\u003cli\u003eRatRig V-Core and Annex K3 users upgrading motion components for improved print quality\u003c\/li\u003e\n\u003cli\u003eCoreXY enthusiasts requiring durable rails with consistent preload and smooth operation\u003c\/li\u003e\n\u003cli\u003eKlipper ecosystem users focused on minimizing mechanical errors and layer shifts\u003c\/li\u003e\n\u003cli\u003eDIY 3D printer builders needing robust, pre-lubed rails for long-term performance\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003ePair With the Right Filament\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eHigh-quality linear rails like the HoneyBadger MGN9H enable precise motion control, essential for printing demanding filaments with tight tolerances.\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 and fine-tuning motion accuracy 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 layer adhesion enabled by smooth rail movement\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 to avoid print defects, supported by high preload rails\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Fabreeko","offers":[{"title":"50 mm Class H","offer_id":52904599028006,"sku":"C10-S0175","price":9.99,"currency_code":"USD","in_stock":false},{"title":"200 mm Class H","offer_id":52904599060774,"sku":"C6-S0176","price":21.99,"currency_code":"USD","in_stock":true},{"title":"210 mm boop rail Class H","offer_id":52904599093542,"sku":"C6-S0177","price":22.99,"currency_code":"USD","in_stock":true},{"title":"220 mm boop rail Class H","offer_id":52904599126310,"sku":"C6-S0178","price":22.99,"currency_code":"USD","in_stock":true},{"title":"250 mm Class H","offer_id":52904599159078,"sku":"C6-S0179","price":26.99,"currency_code":"USD","in_stock":true},{"title":"300 mm Class H","offer_id":52904599191846,"sku":"C10-S0180","price":29.99,"currency_code":"USD","in_stock":true},{"title":"350 mm Class H","offer_id":52904599224614,"sku":"C10-S0181","price":34.99,"currency_code":"USD","in_stock":true},{"title":"400 mm Class H","offer_id":52904599257382,"sku":"C10-S0182","price":38.99,"currency_code":"USD","in_stock":true},{"title":"680 mm Class H","offer_id":52904599290150,"sku":"C10-680-9H","price":47.99,"currency_code":"USD","in_stock":false},{"title":"300 mm no preload for Monolith","offer_id":52962995503398,"sku":"C10-S0175","price":29.99,"currency_code":"USD","in_stock":true},{"title":"350 mm no preload for Monolith","offer_id":52962995536166,"sku":"C10-S0176","price":34.99,"currency_code":"USD","in_stock":true},{"title":"400 mm no preload for Monolith","offer_id":52962995568934,"sku":"C10-S0177","price":38.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1004\/1986\/2822\/files\/image_c4fae1e7-8260-470d-bcbd-428b6b2797a2.jpg?v=1774982638","url":"https:\/\/supplies3d.shop\/products\/honeybadger-mgn9h-stainless-steel-rails","provider":"SUPPLIES3D","version":"1.0","type":"link"}