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#1
10-02-2015, 05:08 PM
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Re: Great Dane excavating co.
   Ok so tires were a limiting factor in what size haul truck can be made, and I am also limited if I can't figure out how to make telescopic cylinders. I'm making on out of brass first. Figure I can solder ends easier than brazing stainless. And brass is way easier to machine for me than stainless. If I can make these work I'm going to try and make the finished cylinders out of 416 stainless and solder/braze parts together. Pics above are a start, I have to make a small hole in first stage to allow oil to fill inner chamber on stage two. So these are in theory going to be very similar to the real deal multi stage hydraulic cylinders.
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#2
10-02-2015, 05:40 PM
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Re: Great Dane excavating co.
Cooper your drawing of the cylinder shows a lower and an upper port why? If you are going for a telescoping cylinder you only need one port. As for your cylinders you don't need a hole on the stage bottom you just need the tube and the seals to keep the oil in the cylinders. Your picture shows a bleeder on the top stage and that is good but not really need for what you are going to do. You will need o rings to seal the stages and to be guides. Hope I have helped it has always been my intentions to build a multi stage cylinder but that is as far as I got. Ed
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