i am still not happy with transport wheels raise and lowering of them.
i set my limits of....
---3 feet total rise and lower
---1 foot to lift everything up off the ground during transport mode. so there is enough clearance under neath everything, to get over steeper sudden changes in hills and bumps that come along.
---middle 1 foot, normal operational range in field mode.
---1 foot upper limit. to deal with adjustments side to side to deal with weight adjustments, and perhaps getting out of muddy situations.
---6 feet total height though would like to see 5 feet total height, counting wheel hights to top height point that sticks up.
---2 inches of clearance around transport wheels regardless at what rotation they are at. along with 2 inches above them.
---8 to 10 inches above the 2 inch clearance to deal with 360 joint or what ever may need to be directly located above transport wheels.
---8 feet total width
---each side is set back 2 feet to allow for implements to be folded up onto the sstt (sideways snake train tractor), and implements basically rest right on top of the transport wheels, when in transport mode.
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other things
---accurate reading of how far a hyd cylinder has extended
---pressure sensors on both hoses coming off of each double acting cylinder. to deal with better weight distribution.
---an attempt to stay with max of 4 cylinders (1 hyd cylinder per set of transport wheels a set = 2 wheels setup as duals or rather narrow front end tractor)
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dis likes....
---2 hyd cylinders per set of transport wheels way hyd cylinder goes. entire thing falls apart and collapses to the ground.
---scissor linkages, to many things could go wrong and more so "bending" and things beginning to hang up.
---everything i drew up so far for extra linkages to reduce overall hyd cylinder length, only adds extra complexity and bigger weak points and in that point of failures.
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unsure about....
---cross bracing. to obtain backup, and better structural support. when in transport mode. and hyd cylinders are extend up to there max of 36 inches. backup... if one hyd cylinder goes down. there at min one other hyd cylinder on that same side. to hold things. to at most limp back to the shed / shop.
---extra pipe on each side of each hyd cylinder, or C with T or I metal bars to act like sliding tracks. to help beef up things some. vs sizing hyd cylinder diameters and lengths for internal seals longer.
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with above said. i am over my head in known metal grades, and thicknesses. let alone having any idea of physical total weight the SSTT would have that the transport wheels would need to handle. going to call it good enough for now for transport wheels.
complete rebuild for parameters, not really liking the pipes as noted earlier in post, got side tracked on a couple other ideas and did not put in the main frame block. to make things look better. (not sure what main frame will actually look like yet)
some more hangman games for linkages. played around with more than what is shown for linkages to reduce hyd cylinder length, nothing that could work, could fit within the limits noted above....
redo of lower frame that connects wheel sets. to have "wheel wells" to help gain some extra space. though the C and T or I beam. gave up before finishing up. just not seeing it happen.