TRIPLE EXPANSION MARINE STEAM ENGINE 3
by John
I had almost 8 hours in the workshop today. The base plate is progressing.
Sheet 1 of 3
Milling the main bearing housing slots. Using a 14mm HSS end cutter. Ended up blunt. There must be some embedded casting sand still
Then I spent an hour or so painting the machined surfaces with marking blue, and marking reference points and edges.
Using a Knu vice to cramp the base plate to and angle plate, and a height gauge to mark the reference lines
Top view of the marking out lines
After machining the main bearing housings, the big end slots and the eccentric slots.
johnsmachines 
There does not seem to be a lot of specification on the blueprint!
Peter W Viggers 0429 184 092
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It is there. A bit hard to see in the photo. Each dimension is marked only once, even if the part appears in multiple places on the plans, so for each part it is necessary to examine every sheet just in case.
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