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  1. Jasonb

    How to make valves for a four stroke engine on a lathe

    Face and ctr drill the end so you can use a tailstoch ctr to support the work while the stem is turned, then do the back of the head which will probably need the topslide set at the 45deg angle. Saw off and hold in a collet to face the other end with gentle cuts, same to remove the ctr drill...
  2. Jasonb

    Stuart Twin Oscillator build

    I would say it should be dimensioned 3/32" but it is not critical if you have already drilled it. It is indeed to take a peg to act as a stop for the two lugs on the valve to limit it's movement. You could just use a 5/32 peg or take a bit of 5/32" material and turn the end down to 3/32"...
  3. Jasonb

    36x60x54 Twin Tandem Mill Engine

    Not a tandem but may be of interest https://modelengineeringwebsite.com/Reversing_rolling_mill_engine.html
  4. Jasonb

    A Portable Silver Soldering Hearth

    Fair enough I did not see where it said white was used for stainless. Strange Harris mention stainless for the smaller sizes but not the large, Guess I looked at the large when I checked yesterday. large https://www.harrisproductsgroup.com/en/Products/sswf60 Small...
  5. Jasonb

    A Portable Silver Soldering Hearth

    I suggested in the other thread where Hockeypuck asked that black flux was the one to get. The two reasons are that it will stay active for longer or if the part is overheated and it also works with stainless steel. These are the same properties that the UK Tenacity No5 or HT5 flux have and I...
  6. Jasonb

    A Portable Silver Soldering Hearth

    I would raise it up off the surface so you can get the heat into that steel jig. Ideally use lightweigh vermiculite or similar insulating bricks and a sheet not a solid heavy fire brick. Did you see my reply to your other question about Silver Soldering in particular that you have the wrong solder.
  7. Jasonb

    V-TWIN---MAYBE V-4

    Ignore all the hardness names in that video as jewelry solder which he is talking about uses different classifications
  8. Jasonb

    V-TWIN---MAYBE V-4

    For a start you need silver solder not what you have in the picture. The name applies to the silver content not the actual colour of the alloy. As you are using Harriss products get some Safety-Silv 45 or Safety-Silv 56* solder and Stay-silv black flux Put the heat into your metal fixture...
  9. Jasonb

    Upshur's opposed twin engine

    Hope you are OK Brian, its all gone quiet. Any luck timing your engine?
  10. Jasonb

    Hobby or more....hobby and make money...

    I have made several engines to commission and turned down more. I have also thought about building 2 or 3 at a time as it would take less time than making them individually but it would really only provide pocket money in most cases as there are very few people who would pay a working wage if...
  11. Jasonb

    Clarkson Horizontal Redefined in Metric

    Having felt for a long time that anyone looking for their first casting kit will get lead down the imperial route even though it may not be familiar to them I decided to redraw the Clarkson 1″ x 1.5″ Horizontal in metric and while I was about it sort out the few anomalies and missing details...
  12. Jasonb

    Late Era Enclosed Steam Engines

    No. I only got th basic 3D model done but not fully detailed. Did also make a small start on the 4" dia crankcase but lack of knowing what was happening inside at the time saw the project sidelined. I did see Doubleboosts videos so would have the info now but as I said earlier you can't really...
  13. Jasonb

    Late Era Enclosed Steam Engines

    More likely to use a steam turbine these days to generate electricity to drive a motor than use the steam to run a steam engine
  14. Jasonb

    Late Era Enclosed Steam Engines

    Pat I don't think that engine is a compound. Steam enters via the governor controlled valve to the first valve chamber Upper small dia link pipe takes steam from their to the further valve chamber Lower larger dia link pipe picks up the two exhausts and combines them as one for piping away.
  15. Jasonb

    Late Era Enclosed Steam Engines

    Now we have a bunch of slide valve engine images! Back to the original question of plans for the engine type originally questioned. Although I am not aware of any scale plans there are quite a lot of designs for similar 2 cylinder enclosed engines that could be used as a basis for a scale...
  16. Jasonb

    36x60x54 Twin Tandem Mill Engine

    May be better to have a new thread for further discussion of enclosed engines rather than derail this one any more.
  17. Jasonb

    36x60x54 Twin Tandem Mill Engine

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  18. Jasonb

    36x60x54 Twin Tandem Mill Engine

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  19. Jasonb

    36x60x54 Twin Tandem Mill Engine

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  20. Jasonb

    36x60x54 Twin Tandem Mill Engine

    Answers to Richards Question moved to new thread.
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