30ft 1890's navy steam launch 1/6th scale

[Admiral_dk]

Looks really good so far 

[crueby]

Great parts, really like those valve rod guides.   

[Johnmcc69]

 
 Coming along nicely!

 John

[tghs]

thanks all,the guides are a compromise between the prototype , what will work and what would scale..the navy guides are much more elegant and compact,,hopefully most of the making things up stage is behind me,, but it's always something just today noticed I need a 5/32-40 tap and die, might as well order more tools along with them..

[tghs]

slow progress as lots of other things going on,, but starting to look more like an engine,, what would be a good choice for gasket material?

[crueby]

I like the automotive type fiber gasket material, available in several thicknesses. It holds up well to handling, cuts easy, and does not bleed sideways through the material. Some have had great luck with brown paper bag material, but I never have - the bags I have tried all are too porous and bleed out the edges. Must depend on what your local store uses. You can also use the RTV gasket goops, but those are not good for disassembly/reassembly as much.

[tghs]

the last big holes in the block,, due to my shortening the block as much possible (trying to keep a scale look to the engine) the port on the low pressure exhaust had to milled at a slight angle,, slowly getting all the holes in the block, down to about 20 to go. I'll be very happy when all the studs can installed and stay..

[tghs]

the rotary table centered, marked a center point on the stock and using the chuck jaws aligned it to a point in the mill collet , mill drilled the center,, milled off the rest, cut the part off the stock a little long,, final thickness on the lathe..

[Admiral_dk]

Interesting - I have never seen oval stock before 

[crueby]

Yeah, me either, I have gotten half-round and half-oval stock for use on the boats, but never seen that shape. Where did you get it?

[tghs]

the stock is what Stuart Turner is sending with the kit in place of castings for the flanges and shaft glands,, without the 4jaw chuck on the rotary table the parts would have taken a bunch of steps,, I made a second one in less than 15 minutes..

[tghs]

I searched around and couldn't locate the oval solid bar as such,, Stuart Turner has 2" sections listed as brass extrusion in the spare kit parts listings, only 7 pounds per plus shipping,, 3 sections came with the kit, I should use only about half on the engine,, but lots of other boat machinery to make..

[Admiral_dk]

So basicly Stuart Turner has them custom made to make it easier for their customers to make flanges 

[crueby]

I did find some commercial metal suppliers that had it listed, but only at the kind of places you have to buy in bulk.

[tghs]

milling and drilling for the glands finished,, purchased some cylinder cocks,, they will get a little work before they get installed,, I'll be making the receiver pipe to navy plans, mounted at an angle due to the port high on the low pressure chest, and fitted tight to the engine side.. will decide where to mount the cylinder cocks depending on the pipe..