Author Topic: Strictly.... Hot Air  (Read 21665 times)

Offline Roger B

  • Global Moderator
  • Full Member
  • *****
  • Posts: 3523
  • Switzerland
Re: Strictly.... Hot Air
« Reply #390 on: December 05, 2018, 07:26:23 PM »
Splendid  :praise2:  :praise2: As the others have said just a tea light is pretty impressive  :wine1: (that's your glass for Thursday  :stir: )
Best regards

Roger

Offline Jo

  • Administrator
  • Full Member
  • *****
  • Posts: 11769
  • Hampshire, england.
Re: Strictly.... Hot Air
« Reply #391 on: December 05, 2018, 08:52:25 PM »
Thanks Guys  :)

Another engine to put away into the collection. Hopefully I might be able to swop it for another set of castings  :naughty:

Jo
Usus est optimum magister

Offline Dave Otto

  • Full Member
  • *****
  • Posts: 3373
  • Boise, Idaho USA
    • Photo Bucket
Re: Strictly.... Hot Air
« Reply #392 on: December 05, 2018, 09:45:29 PM »
Nicely done Jo, I like the color too!

Dave

Offline Steamer5

  • Global Moderator
  • Full Member
  • *****
  • Posts: 1015
  • The "Naki" New Zealand
Re: Strictly.... Hot Air
« Reply #393 on: December 06, 2018, 06:17:33 AM »
Very nice Jo. You just need to scale the candle down to see how little it needs

Cheers Kerrin
Get excited and make something!

Offline Jo

  • Administrator
  • Full Member
  • *****
  • Posts: 11769
  • Hampshire, england.
Re: Strictly.... Hot Air
« Reply #394 on: December 07, 2018, 11:28:53 AM »
Thanks Guys  :)

Continuing on with the Polly Robbie...

The Displacer Cylinder  :facepalm2: I ended up having to turn shoulders on the two ends, wire the outer and keep the whole lot together using a piece of threaded rod. Easy flow wouldn't run so I ended up using some even higher percentage silver solder (=lower temperature melting) to do the joining. Its together  :paranoia:

Do I want to do it again  :hellno:

Jo
Usus est optimum magister

Offline Jo

  • Administrator
  • Full Member
  • *****
  • Posts: 11769
  • Hampshire, england.
Re: Strictly.... Hot Air
« Reply #395 on: December 07, 2018, 04:31:36 PM »
The main part of the engine that still has to be finished is the platform this requires a hole drilled along the length of the casting for the passing of the heated air. Then the parts have been joined together with JB Weld. And finally the hole taken through the other part.

Now I just have to wait for it all to go off :drinking-41:

Jo
Usus est optimum magister

Offline Jo

  • Administrator
  • Full Member
  • *****
  • Posts: 11769
  • Hampshire, england.
Re: Strictly.... Hot Air
« Reply #396 on: December 09, 2018, 04:10:44 PM »
The Links: are soft and they do not match the drawings, they are however about the right length. I decided on redesigning to use the supplied links and not to use smooth pivots or attempt pinning with 10BA screws but to make screwed pivots.

Before drilling, reaming and tapping the holes it was necessary to pack between the arms.  I couldn't find any easy way to stop the arms bending all over the place to let me mill out the centre slot so I used a needle file and did it by hand  ;)

Another Weekend is over  :-\ so its another week in the Workshop to look forward to  :ThumbsUp:

Jo

Usus est optimum magister

Offline 10KPete

  • Full Member
  • ****
  • Posts: 1402
  • Nordland, WA, USA
Re: Strictly.... Hot Air
« Reply #397 on: December 09, 2018, 04:47:09 PM »
 :ThumbsUp: :ThumbsUp:

 :popcorn:

Pete
Craftsman, Tinkerer, Curious Person.
Retired, finally!
SB 10K lathe, Benchmaster mill. And stuff.

Online b.lindsey

  • Global Moderator
  • Full Member
  • *****
  • Posts: 12367
  • Dallas, NC, USA
    • Workbench-Miniatures
Re: Strictly.... Hot Air
« Reply #398 on: December 09, 2018, 04:54:07 PM »
Got to love retirement eh Jo? Like an endless weekend  ;)

Bill

Offline Jo

  • Administrator
  • Full Member
  • *****
  • Posts: 11769
  • Hampshire, england.
Re: Strictly.... Hot Air
« Reply #399 on: December 09, 2018, 06:22:38 PM »
Retirement is hard Bill  I have to keep looking up the Dilbert cartons to remind me what I am missing so I don't  forget  :noidea:

I reckon I am over the worst bits of this engine so I have been asking Surus to see if he has started thinking about the next set of castings I can have out of his collection ;D

Jo
Usus est optimum magister