A small boiler

Discussion in 'Boilers' started by firebird, May 26, 2008.

Help Support HMEM by donating:

  1. Jan 19, 2009 #321

    NickG

    NickG

    NickG

    Well-Known Member

    Joined:
    Jun 20, 2008
    Messages:
    1,025
    Likes Received:
    19
    Rich,

    Strange you mentioned that about the vent hole. I forgot to put one on my small meths wick burner for my hot air engine. Now that I've drilled one, it doesn't burn as well! ???

    Boiler is looking superb, I too am wondering what sort of engine you will now build to go with it! It will have to be good to do it justice, that's for sure!

    Nick
     
  2. Jan 19, 2009 #322

    firebird

    firebird

    firebird

    Well-Known Member

    Joined:
    Oct 26, 2007
    Messages:
    1,133
    Likes Received:
    6
    Hi Bob & Nick

    This will be my first steam engine so I have a bit of research to do first. I understand how an oscillating engine works but I think something a little more is needed to compliment the boiler. I need to learn how slide valves work and eccentrics etc. Another huge learning curve. One step at a time is the way to go ;D ;D ;D

    Cheers

    Rich
     
  3. Jan 19, 2009 #323

    NickG

    NickG

    NickG

    Well-Known Member

    Joined:
    Jun 20, 2008
    Messages:
    1,025
    Likes Received:
    19
    Rich,

    You're right there, it deserves much more than an oscillating engine. Slide valve with reversing gear I reckon! Or a beam engine! Sure you will have great fun and learn a lot ;D
     
  4. Jan 19, 2009 #324

    mklotz

    mklotz

    mklotz

    Well-Known Member

    Joined:
    Aug 29, 2007
    Messages:
    3,039
    Likes Received:
    18
  5. Jan 19, 2009 #325

    firebird

    firebird

    firebird

    Well-Known Member

    Joined:
    Oct 26, 2007
    Messages:
    1,133
    Likes Received:
    6
    Hi

    Thanks Marv

    Cheers

    Rich
     
  6. Jan 24, 2009 #326

    firebird

    firebird

    firebird

    Well-Known Member

    Joined:
    Oct 26, 2007
    Messages:
    1,133
    Likes Received:
    6
    Hi

    I carried out a little mod to the burner today in the form of a bung in the filler plug vent hole. First a bit of video. I lit the burner just to remind myself how it performed with the vent hole open.

    [​IMG]

    Firstly the filler plug was drilled through and tapped 3/16 x 40 in the top as deep as I could go. The bung is a simple turning job from 5/16 round brass knurled a bit and threaded 3/16 x 40. I moved it to the mill and clamped it in the vise at an angle and milled a slot with a 1/16 cutter.

    Turned and threaded and knurled.

    [​IMG]

    Mill a slot at an angle.

    [​IMG]

    Part off.

    [​IMG]

    Fitted in the filler plug.

    [​IMG]

    Under test the burner performed better, a little pressure seemed to make it burn better. By loosening the bung to expose the slot the flame noticeably drops so I now have some control. Coupled with the adjustable vents in the boiler housing I should have a good degree of control.

    Some video of the second test with the bung fully closed. Sorry about the noise in the background I forgot to turn the telly off!

    [​IMG]

    Cheers

    Rich

     
  7. Jan 24, 2009 #327

    firebird

    firebird

    firebird

    Well-Known Member

    Joined:
    Oct 26, 2007
    Messages:
    1,133
    Likes Received:
    6
    Hi

    I'm satisfied now that the burner will perform ok so I stripped the boiler down. I can clean and polish all the pieces now and then line the housing with insulation. Heres some photos of all the bits.

    [​IMG]

    [​IMG]

    [​IMG]

    [​IMG]

    [​IMG]

    [​IMG]

    [​IMG]

    [​IMG]

    Cheers

    Rich
     
  8. Jan 24, 2009 #328

    NickG

    NickG

    NickG

    Well-Known Member

    Joined:
    Jun 20, 2008
    Messages:
    1,025
    Likes Received:
    19
    Absoltely brilliant. :bow:
     
  9. Jan 25, 2009 #329

    Shopguy

    Shopguy

    Shopguy

    Well-Known Member

    Joined:
    Sep 11, 2008
    Messages:
    192
    Likes Received:
    13
    Beautiful work! You've certainly hung in there to make a boiler that is not only functional but also looks very good. Congratulations on the job. Any plans for a name plate like the big ones?
    Regards, :bow:
    Ernie J
     
  10. Jan 25, 2009 #330

    kustomkb

    kustomkb

    kustomkb

    Project of the Month Winner!!! Project of the Month Winner

    Joined:
    Dec 14, 2007
    Messages:
    1,181
    Likes Received:
    31
     
  11. Jan 25, 2009 #331

    Kermit

    Kermit

    Kermit

    Guest

    Model Engineers Steam Generator

    Model A1 Serial no. 001


    Would look nice etched into brass and filled in with black paint. ;)



    You should toot you horn for this one, I think its a wonderfully detailed specimen. Good job Sir,
    Kermit




     
  12. Jan 26, 2009 #332

    firebird

    firebird

    firebird

    Well-Known Member

    Joined:
    Oct 26, 2007
    Messages:
    1,133
    Likes Received:
    6
    Hi

    My good mate Julian, who has just finished converting his x1 mill to full 3 axis cnc, took it upon himself to make this for me.

    [​IMG]

    [​IMG]

    He's a good lad isn't he.

    The boiler will eventually drive an engine and the two will be mounted on a nice base so I will probably fit the brass name plate to that.

    Cheers

    Rich
     
  13. Jan 27, 2009 #333

    Maryak

    Maryak

    Maryak

    Well-Known Member

    Joined:
    Sep 13, 2008
    Messages:
    4,998
    Likes Received:
    76
    Rich,

    Yes Julian is a good lad [​IMG]


    Best Regards
    Bob
     
  14. Jan 31, 2009 #334

    firebird

    firebird

    firebird

    Well-Known Member

    Joined:
    Oct 26, 2007
    Messages:
    1,133
    Likes Received:
    6
    Hi

    Well I've spent most of my spare time this week polishing the bits. The ally parts have been giving me some trouble however. The funnel, funnel base and boiler housing top plate have all polished up ok but the boiler housing will not polish well no matter what I try. It just seems to stay a dull colour. The best I've come up with is this stuff, solvol, that gives a reasonable polish. filthy stuff though, my hands ended up stained black so rubber gloves are needed.

    [​IMG]

    With all the parts cleaned and polished to a reasonable level I have started the re-build and fitting of the insulation material.

    The insulation material.

    [​IMG]

    A thin smear of silicon to hold it in place.

    [​IMG]

    [​IMG]

    [​IMG]

    [​IMG]

    The boiler has been re-fitted and has insulation material on the top.

    [​IMG]

    Re-fitting the vent controls

    [​IMG]

    [​IMG]

    This is how far I have got with re-building

    [​IMG]

    [​IMG]

    Cheers

    Rich
     
  15. Jan 31, 2009 #335

    ChooChooMike

    ChooChooMike

    ChooChooMike

    Well-Known Member

    Joined:
    Jan 6, 2008
    Messages:
    864
    Likes Received:
    13
    Looks great !!! :bow: :bow: :bow: :bow: :bow: :bow:

    (again :D )

     
  16. Jan 31, 2009 #336

    rleete

    rleete

    rleete

    Well-Known Member

    Joined:
    Dec 6, 2008
    Messages:
    603
    Likes Received:
    10
    Wow, lookin' good.

    What material are you using for the insulation? Aren't you worried about smoking from the RTV, or doesn't it get that hot?
     
  17. Jan 31, 2009 #337

    firebird

    firebird

    firebird

    Well-Known Member

    Joined:
    Oct 26, 2007
    Messages:
    1,133
    Likes Received:
    6
    Hi

    Its boiler insulation material but I have to confess I can't for the life of me remember where I bought it. I most probably bought it at one of the shows. Most model engineering suppliers stock it. As for the silicon Sandy C suggested the method of fixing it to the boiler, its only a very thin smear and will be well cured by the time I fire up the boiler.

    Cheers

    Rich
     
  18. Jan 31, 2009 #338

    chuck foster

    chuck foster

    chuck foster

    Well-Known Member

    Joined:
    Jul 12, 2007
    Messages:
    704
    Likes Received:
    0
    i have been following this build from the start and all i have to say is ............ excellent workmanship and a great tutorial on building a boiler :bow: :bow:
    thanks rich

    chuck
     
  19. Jan 31, 2009 #339

    steamer

    steamer

    steamer

    Well-Known Member

    Joined:
    Nov 30, 2007
    Messages:
    5,405
    Likes Received:
    27
    Looking Great Rich!
    When is the first "Steam"?

    Dave
    :)
     
  20. Jan 31, 2009 #340

    ozzie46

    ozzie46

    ozzie46

    Well-Known Member

    Joined:
    Dec 12, 2008
    Messages:
    1,205
    Likes Received:
    30
    Absolutely Amazing!!!!!! :bow: :bow: :bow: :bow: :bow: :bow: :bow: :bow: :bow: :bow: :bow:


    Ron
     

Draft saved Draft deleted

Share This Page

Group Builder