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  1. ixb1

    Starting with the Boll Aero 18

    Cylinder taper is simply larger diameter at bottom end about 0,01-0,02 mm. Piston at bdc have clearance(meaning less drag) and at tdc is tight.
  2. ixb1

    10cc glow aero engine

    Inner surface of the liner was lapped with 320 grit valve compound.
  3. ixb1

    10cc glow aero engine

    Hi all Here my biggest toy finished Next run with modified carburetor
  4. ixb1

    The ENV aero engine

    Just add wings and seat and fly.
  5. ixb1

    Felgiebel 16,6

    Pěkná práce!
  6. ixb1

    Starting with the Boll Aero 18

    Uncle Google say Here: http://www.machineconcepts.co.uk/engines/nelson/nelson.htm
  7. ixb1

    Lost a PDF

    https://www.homemodelenginemachinist.com/threads/mp-3-2cc-glow-engine.26858/
  8. ixb1

    Lost a PDF

    I'm glad you're happy :) I holding my previous 3,2cc baby (what you can find here).
  9. ixb1

    Lost a PDF

    Do you talk about this one? https://www.adriansmodelaeroengines.com/catalog/product.php?cat_id=40&pid=253
  10. ixb1

    Felgiebel 16,6

    Ahoj F-DS Did you saw this Felgiebel build thread?Just for inspiration. https://www.homemodelenginemachinist.com/threads/building-the-felgiebel.27541/
  11. ixb1

    Starting with the Boll Aero 18

    Its more ways to turn crankshaft. I personally turn them in four jaw chuck out of ht bolt. Plans do not contain one important note- cylinder bore must be tapered!
  12. ixb1

    Starting with the Boll Aero 18

    My first engine was Boll aero too. If you want made crankshaft with separate crankpin, i dont recommend use loctite.Crankpin must be pressed into web.Slide fit+ loctite leads to fail.Imo best option is one piece crankshaft. It be better make cylinder with bigger bore diameter- bigger...
  13. ixb1

    making piston ring for Corliss Steam Engine

    Machining these "Z" rings looks a bit tricky. It would be a simpler make two thiner ordinary rings and gaps oriented opposite.
  14. ixb1

    MP5 Glow engine

    Make drawings are planned, but there is not enough time.
  15. ixb1

    MP5 Glow engine

    This engine is my version of these classic stars.
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