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  1. R

    Proof that Stirling engines do not need frictionless bearings to work.

    OK I admit so far my efforts to engineer a Stirling engines that actually runs reliably have so far amounted to zero. But this short clip give me hope - and any way I kind of like the Rube Goldberg way it works. http://www.youtube.com/watch?v=IPHFwrNKMgY
  2. R

    Mechanical movement film

    Just had to share this. http://www.youtube.com/watch?v=Y5pen3QMgzQ
  3. R

    Snag?

    As an electronics engineer I always referred to final setting up as Fettling - Perhaps I got it from my Engineer Father.: Some definitions: Definitions of fettle on the Web: * remove mold marks or sand from (a casting) * a state of fitness and good health; "in fine fettle"...
  4. R

    Question about belt sanders

    On occasion the kids at school would want to use the belt sander for aluminium. Experience with cut and broken belts quickly showed us that using the disc sander on the side was a better option as the disc has no join to catch and rip. Watch those fingers!
  5. R

    Cast Iron

    Small lumps - try to find some old sash windows the weights were cast iron - A plastic installer window may be able to help. For bigger lumps Tractor weights.
  6. R

    rc airplanes

    I ran a RC club at shool for a couple of years - both indoor and outdoor models which the school provided and we built as part of the educational experience. A number of things stick with me from that: 1. When you let people control something that is moving, in the air or on the ground, they...
  7. R

    Psssttt... read any good books lately?

    For various reasons, mainly travel sickness I prefer to listen to audio books. this is a selection I have listened to recently or intend to on my forthcoming trip to New Zealand: Tori Spelling Stori Telling Walter Mosley Devil in a Blue Dress Yann Martel Life of Pi Terry Pratchett All of...
  8. R

    old torches

    I think the top one is fuelled with methylated spirits - you used to see adverts often in older engineering mags or practical mechanics.
  9. R

    Brians Slinky Machine

    There is a certain elegance about this approach, Not "steam" driven though (yet) http://makers.makezine.com/video/video/show?id=2767042%3AVideo%3A10433
  10. R

    Bogs goes electronic.

    I also have a tens unit for chronic sciatica. I asked how they work and was told that actually it isn't well understood at all. Some feel it is disrupting the transmission of pain information by over loading the nerves locally, Some think it is a distraction signal that confuses the brain...
  11. R

    Powerfull Stirling motor ???

    Some information here http://roundtable.menloschool.org/issue1/umphreys/index.html BIG stirling http://www.stirlingsouth.com/Roy/itasca2k/rob/trewhella_recovered.htm http://www.stirlingengine.com/product?usca_p=t&product_id=49
  12. R

    Sterling powered helicopter

    This http://www.animatedengines.com/vstirling.shtml is perhaps the best explanation and animation of the Stirling cycle. As for drawings, in various form they are all over the web.
  13. R

    The Lancaster

    We had English Electric Lightings in Germany - Very Impressive to see flying - A man strapped across 2 powerful jet engines. Somewhat akin to a cowboy astride a good horse! Only 15 or 20 mins on full reheat though.
  14. R

    Bastille Day

    WOW, it's now 48 years since I graduated from my electronics training course. Where does the time go.
  15. R

    The Lancaster

    City of Lincoln is quite smooth although she never flew in battle. The skin is very heavy on the rivets though!.
  16. R

    The Lancaster

    BBMF moved to Conningsby in 1976 just after I left. It was apparently formed at Biggenhill in 1957 after the Queen suggested it would be a good idea if a few of the WW2 aircraft could perform a flypast over London - Important people began to search for flyable spitfires and hurricanes to find...
  17. R

    The Lancaster

    Small world. I was there 76 - 78 I left to go to Germany to work for the American Army airforce. I came out of the RAF and worked for Marshalls as a Radar and Computer engineer on the air traffic control side. Short addition to the Lancaster story: We were servicing the radar on a Foggy...
  18. R

    Ok to use t-cut for lapping an ali cylinder bore?

    I would have though t cut will be a bit harsh. Even metal polish (brasso) may be considered harsh for fine lapping.
  19. R

    The Lancaster

    As far as I know there are only 3 regularly flying Lancaster bombers left - The UK Battle of Britain Memorial Flight at Conningsby, one in New Zealand and one in Canada. There is also one under restoration at East Kirkby Lincolnshire although not at present in a flyable condition. If you have...
  20. R

    A sad Day!!

    On a similar note a friend phoned earlier this week to say a neighbour had sadly died and his widow wanted to dispose of the workshop full of his tools and equipment. everything went well until I mentioned to herself! ..... a resounding NO was heard - Oh well, at least I didn't go and look and...
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