Member postings for paul rayner

Cheers Jason, I've just read about machining the cylinder and I get it now. I new it would be a stupid question!

having said that, I have not machined the cylinder yet as i've a poorly lathe (waiting for parts). Just thought I would do what I could on the mill while I have the chance.

Thank you

Paul

Hi all, Just a quick one i'm back on the Thompstone decided to splash out and buy some PB for the cylinder rather than use CA, Stupid question but on the drawings on page 491 the valve block is 22mm wide but the steam chest is 20 mm wide, I presume this is a printing error and should read 20mm? also the text states on page 562 tap the steam chest M4 but the drawings state M5, I presume the M5 is correct? as the valve nut is also M5 & M4 would make it rather thin walled.

Sorry for daft questions, but I just want to clarify before I cock something up.

thanks for all reply"s in advance

Paul

Hi Jason

I know what you mean about the PM bottle, It just doesn't just look right, maybe a bit skinny?

I do have 1 set of them clarkson castings squirreled away, Blackgates are stocking all clarksons castings and plans if anybody is interested.

I've never heard of Lark & Son. looks a nice engine. I will have to google it.

Paul

oooh looks nice, another one to add to my retirement list!

have you any plans to do a tangye or twin victoria style?

or maybe even a bottle engine or am I asking too much

Edited By paul rayner on 14/02/2023 18:41:06

Hi James Love the colour.

As it happens I've just pulled out my bits this weekend, hopefully I should get some time over the next couple of weeks to do a bit more.

Paul

That's correct, with it being cast iron it will take quite some heat and time to get it to temp.

Where as I don't think my EF would cut the mustard.

Just out of curiosity I went on CUP's site and notice they have a flux for bronze!

regards

Paul

Jason, Bugger me I've got EF flux! so that wont do, JB it is

Geoff, thanks for that, a picture is worth a thousand words as they say.

Thinking about it I will try Jason's suggestion, use a smaller end mill and file the corners.

Now back to the shed with coffee in hand

thank you all

regards

Paul

Thank you Jason, I think I will have a go at soldering some cast iron first.

Then maybe it will make up my mind!

regards

Paul

Hiya Nigel

I know what you mean, but this cylinder isn't as straight forward as that, The valve flange and the steam passages are in one "T" piece soldered to the side of the cylinder there is a picture of Jasons cylinder halfway down the previous page, or the drawings are in ME vol 226 no 4662 page 491 if you are interested.

I Think the only way round it would be rather than milling a slot into the cylinder, to mill a 10mm flat on the cylinder, that way I could machine the cylinder, flanges & decorative bands.

soldering it could be a problem for me though!

or part with some cash.

thoughts anyone?

How does Jb weld fair with steam?

I do intend only to run on air but you never know.

methinks it could be tricky machining the slot for the valve and exhaust blocks with the flanges on.

mmm.

Hiya Jason

Just made a start on this engine at last!

how difficult is it to silver solder cast iron if I used that for the cylinders?

bearing in mind i'm a novice.

thank you for your response in advance

regards

Paul

Hi all

Only time I log in is when I want to make a post or offer my opinion/service in anyway, also when I need help or advice. (I'm probably what is termed as a lurker.)

I have found though, when I have made a post, or if someone messages me, the system does email me, so I do know to logon and reply.

merry christmas everyone

regards

Paul

The Mitutoyo was interesting reading Michael

How about the thompstone being serialized at the moment.

going to have a bash myself when I get the time. The last one Jason did (muncaster) was excellent enjoyed making that and learned lots of machining skills taboot.

regards

Paul

lol

I am, Just been working for a change, (need to earn some pennies). So I have not been logged on for awhile

You always seem to come up with interesting stuff, keep it up. Off In my shed now

regards

Paul

Hi Geoff are you sure it is the chuck?

I had the same problem, turned out to be the stub was out that I had pressed it on to.

If you have the tackle try measuring it on a surface plate in a v block with a piece of silver steel in the jaws.

if you measure the silver steel with the arbor on the block and rotate it. see what you get.

then take the arbor off, put the silver steel in the v block and indicate the inside of the abour bore.

I found mine was cock on. I then rotated my 2mt spindle in the v block up against a stop with an indicator on the stub, and it was bloody miles out.

so you could try that it may or may not be that.

thats my own personal experience. good luck , let us know how you get on

regards

Paul

mine arrived on Saturday