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Chris....they are all still absolutely magnificent pieces of engineering Our current engineering Fraternity would have great difficulty in finding Trade qualified Pattern Makers who were able to, or had the knowledge of the myriad of dimensional allowance tables for shrinkage for all of the varying shapes, sizes, volumes and dimensions of componentsAll of the physical properties are well known in our Universities subjects like "Materials in Engineering", or "Engineerin Materials", however it is the unwritten knowledge gained from actual Foundry Apprenticeship's that are the missing elementAs long as you build will not have all of bucket loads of check valves, all will be OKLooking forward to the continuance
Yeah, stacking up a 60 foot tall pile of castings, and having them line up boggles my mind!
Quote from: crueby on March 15, 2021, 01:08:04 AMYeah, stacking up a 60 foot tall pile of castings, and having them line up boggles my mind!Someone has just recovered from the idea of all those castings and now he wants to try experimenting to see if it is possible. The first problem is he is claiming is that he is short of castings Jo
Hi Chris, a great start to another great build. I look forward to plenty of interesting reading to keep up with your build through the coming winter evenings. (Winter in this hemisphere, anyway.)The valve design in the water cylinders is an interesting consequence of conservation of momentum, or Newton’s observation of a body continuing in a state of constant motion unless acted upon by........The smaller valves gain much less momentum as they close, so are subject to a much smaller force when they hit the seat. This force can easily destroy a larger valve. Then multiple valves are used to achieve the required flow capacity. But at 1/32 scale, the model valves are inherently much smaller, and subject to much lower force from the pressure, so will have much less momentum. So unless you are really keen on some mass production of valves, I am sure that one valve in each chamber will do the job very reliably for you.So many interesting details in a build of such a large machine.MJM460
Hi Chris, I knew about these engines and that they were for pumps but I never worked out where the pumps were. Thanks for the link to a bunch of pumping engines. I have been to the one at Hamiliton but now I have a bunch more to see.Thinking about led's for lighting, there needs to be a current limiting resistor in series with the led which takes up space. Here is a small surface mount led with the resistor on the board. The holes will pass a 1.2mm or a 00-90 screw. https://www.adafruit.com/product/1758Cheers Dan
Wow... the original is a veritable Leviathan!Your CAD model is a work of art in itself, and no doubt your model will be even more so.A fabulous project in skilled hands such as yours...