Twin Cylinder Steam Engine

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sbwhart:
Going Great Darren :clap:

You're starting to use the full range of kit and methods :thumbup:

Stew

Divided he ad:
Looking good there Darren :thumbup:

I like the bolt shortening rig :dremel:

Just two questions.....

1/ What have you used to cover the metal for layout? I know I'm colour blind to a stage but it looks black? Should have asked you last week...... But other stuff got talked about instead :)

2/ What part are you making out of that quid? Best make sure it's not a fake first.... You don't want inferior metals going into your build :thumbup:

:lol:

Ralph.

bogstandard:
What do you mean Ralph?

--- Quote ---What part are you making out of that quid? Best make sure it's not a fake first.... You don't want inferior metals going into your build

--- End quote ---

Fake would most probably be better, 'cos a real one is worth naff all. At least a fake might be brass.

Bogs

Darren:

--- Quote from: Divided he ad on April 29, 2009, 02:37:10 AM ---
1/ What have you used to cover the metal for layout? I know I'm colour blind to a stage but it looks black?

Ralph.

--- End quote ---

It's some sort of industrial coating, I think it's anodising but not certain as it seems to be too black, :scratch:

Darren:
Ralph, it was paint, I cleaned it up and there was grey primer underneath. Very hard paint though :bang:

I shortened the other six required bolts and fitted all the pillow blocks to the base. Now was the time to ream the crankshaft holes to 5mm with them all in line. I'd previously drilled to 4.9mm so the reamer only had to kiss the rest off.
I wanted to ream them in situ but the reamer wasn't long enough to get them all in one go. So this is how I did it.

Then I removed one block and passed the reamer through

Refitted the removed block and passed the reamer through again for a final pass

Now for the real test, fitting a 5mm Silver Steel rod right through

Nice smooth fitting.. :thumbup: I stuck a battery drill on the rod and gave it a spin for a few min to bed things down a little. Worked a treat.

Next job was to machine out all the crank web clearance holes from the bed plate. All marked up ready to go.

I got halfway through and it stopped raining, so I popped out and stuck some more slates on my garage roof for a couple of hrs..... :ddb:

It got dark so I stopped and came back to finish the job on the plate. Note the scale marks on the vice, you can forget all too easily where you should be machining to :thumbup:

I cleaned the paint and some marks off just to tidy up a little. This is by no means the finish I'm after..... :dremel:

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