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  1. doubletop

    Amazing demonstration of the physics of pendulum swings

    I don't need to say much else https://www.youtube.com/watch?v=YhMiuzyU1ag Pete
  2. doubletop

    Scotch Marine type boiler V5

    Latest update with further additions to the drawings reflecting the 'as built' nature of this project
  3. doubletop

    Scotch Marine type boiler V6

    A simple boiler based on the "Scotch" design produced as a design & build project by "Doubletop" and published on this website. http://www.homemodelenginemachinist.com/index.php?topic=9553.0 The drawings are based on the single copy of the boiler built as shown in the drawings. They serve to...
  4. doubletop

    Scotch Marine type boiler V6

    A simple boiler based on the "Scotch" design produced as a design & build project by "Doubletop" and published on this website. http://www.homemodelenginemachinist.com/index.php?topic=9553.0 The drawings are based on the single copy of the boiler built as shown in the drawings. They serve to...
  5. doubletop

    Spindle removal for late model X3

    ArcEurotarde do an excelent guide for preparing the X3 http://www.arceurotrade.co.uk/projects/prepguides/X3 Mill Preparation Guide.pdf However there are a few more steps required if you want to remove the spindle I've put this together in the hope its of use .
  6. doubletop

    Spindle removal for late model X3

    ArcEurotarde do an excelent guide for preparing the X3 http://www.arceurotrade.co.uk/projects/prepguides/X3 Mill Preparation Guide.pdf However there are a few more steps required if you want to remove the spindle I've put this together in the hope its of use .
  7. doubletop

    Scotch Marine V3

    Latest version of the drawings on this think/design/build/draw project. If it works I have the copyright. If it doesn't? I have a pile of scrap. Usual government heath warning. These plans haven't been built yet so what you see is what you get. Its up to you what you do with them. Pete
  8. doubletop

    Scotch Marine V3

    Latest version of the drawings on this think/design/build/draw project. If it works I have the copyright. If it doesn't? I have a pile of scrap. Usual government heath warning. These plans haven't been built yet so what you see is what you get. Its up to you what you do with them. Pete
  9. doubletop

    Scotch Marine Boiler

    Simple boiler based on "Scotch" design. This is a conceptual design so no major dimensions or pressure calculations are supplied. If you want to build it you'll have to be responsible for ensuring it meets your local regulations.
  10. doubletop

    Scotch Marine Boiler

    Simple boiler based on "Scotch" design. This is a conceptual design so no major dimensions or pressure calculations are supplied. If you want to build it you'll have to be responsible for ensuring it meets your local regulations.
  11. doubletop

    A bit of snow on the track?

    Recent clearing of snow in Arthur's Pass NZ http://www.youtube.com/watch?v=6acPX_00M9Q&feature=g-all-u Pete
  12. doubletop

    Reboring Cylinders

    You may see in some of my posts reference to a Simplex I've purchased to refurbish. From what I can tell it hasn't been run for 10 years and I bought it knowing it needed some work doing. That said the boiler has been both hydraulic and steam tested and given the OK by club boiler inspectors...
  13. doubletop

    Chuck Runout

    I purchased a new lathe last year and until now haven't needed to make much use of the 4 Jaw chuck. During the week I needed to make some new main driver crank pins for the Simplex loco I'm refurbishing. Anyway, it needed the 4 jaw to ensure they were truly concentric. Running a 550 revs there...
  14. doubletop

    Amazing Skills

    OK its not model engineering or machining. This guy has just been featured on local TV, he is doing some amazing stuff http://www.kevinmccardellsculptor.com/gallery.htm Enjoy Pete
  15. doubletop

    How Steam Locomotives Really Work

    If you want and excellent book on the subject take a look at this available on Amazon. It covers the history and design of locomotives from Trevithick to the Tornado how they function from an operational perspective, and covers everything you may ever think you'd want to know on the subject...
  16. doubletop

    Northumbrian (completed Jan 2012)

    My first attempt at making a locomotive from scratch (OK I purchased castings and fittings). It was serialized in ME in 2009/10 Build log is here http://www.homemodelenginemachinist.com/index.php?topic=15536.0 Pete
  17. doubletop

    Rigidity

    I'm making my Northumbrian locomotive serialized in ME in 2009/10. I've got to the point of doing the wheels and got stuck with the limitations of my equipment. I only have a small lathe, a 1930's Lorch that has seen a bit of service over the years. Its a clockmakers lathe, although I've managed...
  18. doubletop

    Mechanical Design, Manufacturing and Engineering Calculators

    I was looking out for a way of working out fits and just come across this link that may be useful to some of you. http://www.engineersedge.com/calculators.htm Pete
  19. doubletop

    Small Locomotive & Boiler (ME Northumbrian)

    Since I did my first basic boiler last year I've always fancied making a 'real' locomotive boiler. The problem is that the materials are expensive and a cock up can be painful. I then stumbled across the boiler for the Northumbrian serialised in ME in 2009...
  20. doubletop

    French Grasshopper

    A project I started in early May and thought I should share with you guys. http://www.youtube.com/watch?v=dRLhcy99VRY The plans are available on the website here http://jpduval.free.fr/Liste%20des%20plans/Liste_dossiers_plans.html. Pete
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