{"product_id":"bondtech-extruder-upgrade-kit-for-prusa-i3-mk2-5s-mk3s","title":"Bondtech extruder upgrade kit for Prusa I3 MK2.5S - MK3S","description":"The Bondtech extruder upgrade kit is suitable for the Prusa I3 MK2.5S and the MK3S and already has gears. This kit includes parts to convert the extruder to a 3:1 gear ratio, which provides greater precision, higher resolution, optimised geometry for the heatsink and many other improvements.\u003cbr\u003e \u003cbr\u003e The E steps should be updated to 415 for the MK2.5S. For MK3 it should be 830 because it uses 32 bit microstepping. Also, the Z_MAX_POS 205 must be adjusted. The correct firmware can be found at the bottom of this page.\u003cbr\u003e \u003cbr\u003e NOTE: This upgrade kit requires additional parts (X-Carriage Kit). You can download the STLs and 3D print them.\u003cbr\u003e \u003cbr\u003e \u003ca href=\"https:\/\/support.bondtech.se\/c\/Prusa\" target=\"_blank\"\u003eInstallation files\u003c\/a\u003e\u003cbr\u003e \u003ca href=\"https:\/\/www.bondtech.se\/downloads\/X-carriage(R2)_Bondtech_MK2.5s.STL\" target=\"_blank\"\u003eMK2.5S - STL Front\u003c\/a\u003e\u003cbr\u003e \u003ca href=\"https:\/\/www.bondtech.se\/downloads\/X-Carriage(R2)_bondtech_MK3s.stl\" target=\"_blank\"\u003eMK3S - STL Front\u003c\/a\u003e\u003cbr\u003e \u003ca href=\"https:\/\/www.bondtech.se\/downloads\/X-Carriage_Rear(R2).stl\" target=\"_blank\"\u003eMK2.5s \/ MK3S - STL Rear\u003c\/a\u003e","brand":"Bondtech","offers":[{"title":"Default Title","offer_id":58386878726408,"sku":"DBO00015","price":85.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1031\/6939\/2904\/files\/DBO00015_01.jpg?v=1786083221","url":"https:\/\/www.123-3d.co.uk\/products\/bondtech-extruder-upgrade-kit-for-prusa-i3-mk2-5s-mk3s","provider":"123-3D","version":"1.0","type":"link"}