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Be aware of where the drawing came from. Drawings made in Europe have their "views" projected opposite hand to drawings made in North America. Look up "right projection" and "left projection".---Brian
It also depends on what the valves are, inside admission or outside admission, that reverses things. Same with the linkages...
Quote from: crueby on February 06, 2023, 02:44:58 PMIt also depends on what the valves are, inside admission or outside admission, that reverses things. Same with the linkages...Ah! So this may be a terminology thing? This is easily the most complicated thing I have turned and I will machine it as I see it. What could possibly go wrong🤪?Ian
They are slide valves with the steam chest underneath the cylinders… - ah! A penny just dropped, I think. Are they reversed because they are inverted?
Initially I thought this was an obvious projection problem, either first or third angle. First angle is popular in the UK with those who design model engines (most of industry use third angle).However I see that it is an LBSC design. Having started on an LBSC Speedy I think you are on your own. Looking at his drawings I have the impression he did not have a clue about projections (once very common). He does seem to have used third.Any good drawing will state whether it is first or third projection (or use the modern symbol).AVTUR