DUKE OF DEVONSHIRE

[derekwarner_decoy]

Hi PD's...... ....don't feel too bad about your slow construction RGY...... my vessel is twelve years old & has not seen water yet.....

She just sits there with me adding bits  ...waiting for my retirement 

This Sunday I am hosting my six grandchildren [& their parents  ] to the Illawarra Light Rail & Steam day so should all be good fun.....I hope my camera survives the day........Derek 

[Talisman]

Just read Model Boats mag for November. The story of Queen Alexandra (model), started 1996 still not completed, but has taken to the water.

15 years makes you a driven
machine Geoff!
 

Hi PD's...... ....don't feel too bad about your slow construction RGY...... my vessel is twelve years old & has not seen water yet.....

She just sits there with me adding bits  ...waiting for my retirement 

This Sunday I am hosting my six grandchildren [& their parents  ] to the Illawarra Light Rail & Steam day so should all be good fun.....I hope my camera survives the day........Derek 

Derek, nice to see progress .. your a machine too, but the boiler needs firing more often! lol look forward to seeing more!
Regards,
Kim

[R.G.Y.]

Sorry Kim I am only a clockwork toy, 3 years on the Duke.  The Queen Alex is not mine.  My problem with the burners I found by accident, after getting the flames settled I happened to pass  the lighter over the funnel. This revealed a blue flame about an inch above the funnel so not all the gas is burning inside the fire tubes. Excess gas could build up in the bilges BANG !!! Searched the net for size 3 jets to no avail, if only I could drill a 0.15mm hole.   So it looks like I will have to make a boiler with 28mm tubes instead of 22mm as present. One more option I will try to make a gas regulator, with help from the down load section.

 On a happier note I do like  the look of your steam plant Derek.   Geoff

[steamboatmodel]

Could you find some 0.15mm SS wire? Drill the smallest hole you can in a blank the same shape as your jets, insert the wire and use a center punch to close the hole down around the wire then pull the wire out.
Regards,
Gerald.

[R.G.Y.]

Thank you Gerald for the suggestion, lateral thinking can be good. I have number 5 & 8 jets could they be partially blocked, I am thinking  . When I was working (as a carpenter)it was rumoured  if I couldn't do it with a hammer  I couldn't do it at all. Unfortunately I require 2 jets working from the same canister, so they have to be absolutely identical. Even the propriety jet had to be changed until I found a matching pair. Geoff

[steamboatmodel]

Hi Geoff,
I can't remember where it was but someone suggested using Watch (Jewel)Bearings for the hole in homemade jets. I haven't tried it, but the idea stuck in my head, If I find where I came across it I will post a link. I did find some size reference;
  "Melting point is about 2,050˚ C.  Low relative cost. Typically, a jewel bearing costs 20% as much as a ball bearing and 10% as much as a flexural pivot. Tight concentricities, to 0.0002 in. in most cases.  Small sizes for compact designs. Shafts can be as small as 0.006-in, diameter, but more typically range from 0.02 to 0.125-in. diameter."
http://www.birdprecision.com/PDFs/jewelbearings.pdf
Regards,
Gerald.

[R.G.Y.]

Gerald thanks for the inspiration, jewelers supplies have 0.15mm drills. At a cost of course, would have to be very careful not to brake it (them).  Although its only the final exit that has to be .15mm. I have the brass hexagon rod, the die, all I need is the nerve.
Having almost finished a gas regulator, just need a suitable membrane now. I will experiment with this first. Sorry no pictures as my camera is kaput. The BOSS is buying me a good one for Christmas. Geoff

[derekwarner_decoy]

Hi PDs..... ...& my mate [RGY ] asks .......just need a suitable membrane now...

RGY... just PM your postal address & I will post over a 12" x 12" sheet of 1/8" thick neoprene sheet for you

  ......Derek  ....but  

[derekwarner_decoy]

Hi PD's....... sorry  ....I try to help with 1/8" [0.125"] neoprene  ....then the call is for 0.039370078" thick material 

......in OZ we haven't made a machine that can count that little [to the ninth decimal place] ....... Derek..... 

[R.G.Y.]

Derek. You obviously got my PM thank  you.  .039 would be near enough for me. I have found a piece of car inner tube @ 1.20 thick that is working OK. 
 I must get a camera. 
You are up early or is up late. Geoff

[R.G.Y.]

Still no camera got to wait for my Christmas present. ( Hope its better than the last ). But when I have it I will take photos of the gas pressure regulator. It is working well so no need for number 3 jets. A word of warning to anyone making a gas line(obvious really) be scrupulously clean. I used secondhand 1/8" pipe big misstake.  As it don't take much to mess up the jets, and nothing to clear them out. Took me 10 days to work out why the regulator wouldn't work. 

[R.G.Y.]

Well I have my new  camera. Because I have been a good boy, I have been completing jobs for the big boss.  I hope you will consider the picture quality is much better than the old one.Derek . It shows the gas regulator. The OZ on the can is the weight when full, will weigh when empty so I can tell percentage left  Geoff

[derekwarner_decoy]

..... Beautiful ...you have been a good boy .... .....

Don't be fooled into thinking that "OZ" is some form of unit of mass or weight...as we all understand it an abbreviation for Australia ....... so for the life of me I don't understand its doing on your gas can ....Derek

[R.G.Y.]

OZ represents ounces the 8 is around the side and cant be seen. I must be more careful in the future. Don't want you getting ideas above your station. Just stay  . I may video the control I have with the regulator just need 3 hands again. Your friend Geoff

[R.G.Y.]

The regulator before assembly, only the car valve in place.