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Opus P – now running !
Anyone following the thread of my build of Stan Bray’s Opus Proximum may be interested to hear that we now have a runner ! It was whilst I was setting up the steam chest valve on my recent build of...
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Opus P. (continued)
Updated Friday 13th November undaunted Stan Bray’s engine project continues After having given the plans a good looking at I decided to proceed, amending the depth of the steam chest from 18mm down to...
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Opus P (further progress)
TLC (in model engineering terms this means – take light cuts) Now there should be a batch of photographs showing some detail work on the motion plate (milling slide bar lugs), soldering the base of...
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Opus P. moves on
The next stage was to sort out the motion plate by machining the top mounting lugs for the cross head slide bars. The hole centres on the cylinder lugs are 30mm apart so this dimension is repeated for...
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Opus P. problems
Apart from some cosmetic detail Opus P. is now completed but steadfastly refuses to show any signs of life. Examinations will continue but my suspicions lie with the porting arrangements. I am concious...
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Opus Proximum 1
Opus Proximum – a vertical engine by Stan Bray published in a special issue ‘The Best of Model Engineer’. Fellow model engineer and regular visitor to my site Malcolm Tompkins (now sadly deceased)...
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