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Recent content by scott33

  1. scott33

    regards hydraulic circuits, can you do the following

    Hi desertfox, sheesh its hard to access the interweb, with wannabe youtube addicts (read my kids) around. Anyhow, regards the few things I can understand, (and your diagram would be, I suspect, a great help ...given time and inclination... :-)) About formation of a void - my inclination is to...
  2. scott33

    regards hydraulic circuits, can you do the following

    Do I need piston 2?! - of course I need piston 2, that's heretical talk .....I mean it...it....its piston 2 .... best idea I have heard today. :-) I think you are right (although having had only one coffee it's hard to be sure ) so if piston 2 is gone then spring 3 / piston 3 took the...
  3. scott33

    regards hydraulic circuits, can you do the following

    And the other last question, regards the seal mounted on the piston 1 rod, what or how does that work?
  4. scott33

    regards hydraulic circuits, can you do the following

    Thanks again desertfox, your thoughts are very much appreciated. Where would you might expect the binding to occur? (on the misaligned piston in the cylinder or the rod guides...or maybe both??) last question - to avoid binding is the ideal design require that the force acting on the piston rod...
  5. scott33

    regards hydraulic circuits, can you do the following

    desertfox, excellent figurings thank you. ...oh ye of little faith :-) Do let me though persist one more round. The point you make that there will be an increasing force exerted by spring 2 on piston 2 as piston 2 displaces is well taken. Didn't think of that and is a bit of a hitch. However...
  6. scott33

    regards hydraulic circuits, can you do the following

    Hi desertfox. ok 1. intial move piston 1 causes linear increase in Exit pressure (acts like a simple piston hydraulic circuit) 2. At some point (specified by spring rate of spring 2) with piston 1 continuing to move in - 2. piston 2 moves out, acts as pressure release. Creates constant exit...
  7. scott33

    regards hydraulic circuits, can you do the following

    Desertfox, I'll attach a new diagram now. It's a bit different, but essentially the same - no need for messy lever 2 business. Places piston 3 parallel to piston 1. [ http://files.engineering.com/getfile.aspx?folder=ff4609ce-ec84-4316-b2ca-8db6f7da9c41&file=v2.jpg] I should note, The secondary...
  8. scott33

    regards hydraulic circuits, can you do the following

    THanks desertfox, yes I have approached the matter in step wise fashion and have a better appreciation because of it. Intersting how ones thoughts have to step up a notch or two (six) when voicing them publically ...:-) I think I have solved the problems you have highlighted ...including the...
  9. scott33

    regards hydraulic circuits, can you do the following

    Ahh, I see, thank you, it seems I have neglected something in the picture (at least), namely the stop for piston 2 (and piston 3 but I'll get to that). So when piston 2 is at rest it is forced, by the spring, upon the stop some distance up the cylinder. Pressure build up in the cylinder causes...
  10. scott33

    regards hydraulic circuits, can you do the following

    Hi desertfox, Thanks for taking a look at this. ahh yes about the levering (as drawn) onto piston 3 ...it doesn't work, couldn't quite figure it out exactly in short order. But what I wish to imply is that essentially as lever 1 reaches the inner range of its movment (ie as input force - F1...
  11. scott33

    regards hydraulic circuits, can you do the following

    Thanks Hydromechdude for taking the time and Ok attached is a (rudimentary and rough) sketch of the imagined circuit. [http://files.engineering.com/getfile.aspx?folder=1a39827d-55e6-43b1-a7da-f87f3cbb3f0f&file=hydraulic_diag_2.jpg] I should have added previously that the input force on lever...
  12. scott33

    regards hydraulic circuits, can you do the following

    New here, hello, a google on my topic brought up hydromech's thread here somewhere. hydromech seemed the right person for the job. I would like to know if you could have the following hydraulic setup. A 10-15mm diam and say 100mm long cyclinder and piston (piston 1, lever A) provide pressure...
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