{{Projects infobox |image = |designers = |date = |vitamins = |materials = [[Metals]], [[Plastics]], [[Lubricants]], [[Rust inhibitors]] |transformations = |lifecycles = |tools = [[Wrenches]] |parts = [[Bolts]], [[Nuts]], [[Frames]], [[Linear bearings]] |techniques = |files = |suppliers = |git = }} [[Category:Parts]] [[Category:Motion parts]] =Introduction= =Challenges= =Approaches= * using [[frames]] as rails with [[linear bearings]] * [https://www.aliexpress.com/item/1005001264680460.html HGR15 HGR20 HGR25 Square Linear Guide Rail 2pc+4pcs HGH20CA/HGW20CC HGH15CA Flang Slide Block Carriages For CNC Router Engraving] {| class="wikitable" |+ HG series Linear rails table |- ! HG series !! Hardware !! Dimensions !! Source |- | HGR15 || M4 || || |- | HGR20 || M5 || || |- | HGR25 || ? || || |} =References=