has anyone used a cylinder slide for guide rails?

[Snowfox222]

i found a business out my way that deals in reselling liquidated industrial goods. one of the things i keep finding are these pneumatic slide cylinders, and i cant help but wonder if they are even worth looking at as far as cnc gantry is concerned. it also helps that every time i find one they are almost always dirt cheap. now im not looking to keep the air part working, i just want the slide of it. i'm figuring if i just remove the end caps and away she goes. i posted a picture of the one i'm thinking about so you guys know what i'm talking about

am i completely way off base here, or is this a tree worth barking up? my current machine is a genmitsu 3018 so any amount of rigidity is more than i have now and probably more accurate.

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[mactec54]

i found a business out my way that deals in reselling liquidated industrial goods. one of the things i keep finding are these pneumatic slide cylinders, and i cant help but wonder if they are even worth looking at as far as cnc gantry is concerned. it also helps that every time i find one they are almost always dirt cheap. now im not looking to keep the air part working, i just want the slide of it. i'm figuring if i just remove the end caps and away she goes. i posted a picture of the one i'm thinking about so you guys know what i'm talking about

am i completely way off base here, or is this a tree worth barking up? my current machine is a genmitsu 3018 so any amount of rigidity is more than i have now and probably more accurate.

They are used on a lot of commercial Router for different stations for Drilling Etc some are used for multi spindle machines also, they don't normally have much travel, so not that useful