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| Three Cylinder Radial Engine |
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| sbwhart:
Hi Chaps At Model engineering exhibitions I've alway marveled at the models of radial aircraft engines, now this isn't going to be a petrol engine, but it going to be based on two design of model radial steam engines, I'm going to try and take what I think are the best parts in terms of good design and ease of manufacture from these two designs, plus a bit of bling so that they represent an aircraft engine (cooling fins on the cylinders) The two design I'm going to work with are:- The Cygnet Royal by Edgar T Westbury, I got my drawing free from Model Engineer but you can buy them from http://www.myhobbystore.com I understand that you can buy a set of castings for this design but I'm going to use bar stock. Elmers Radial Engine drawings are available on John Tom http://www.john-tom.com/ElmersEngines/11_Radial.pdf I've been planning this build for some time slowly putting my ideas together and doing a bit of research and I've started on a set of metric drawings as all my kit is metric, and to get round me the material and tools required. I'm just short of some 2" dia ally but I've just ordered a 250mm length from ebay, the rest of the stuff came from my stash or as is the case of the chunk of sash weight cast iron from John, and the bearings were donated by Dave Bluchip Thanks chaps :thumbup: To make the boring bar for the crank case I copied out the sectioned drawing at a 1 - 1 scale and used this as a guide to grind the bar, and yes I know its the wrong way but I'm going to run the lathe in revers its easy to see what's going on that way. This is it ground up Then with a chunk of ally in the lathe a start was made on the crank case, skim up the OD, centre drill then a series of drill, and then with a boring bar it was roughed out. Well thats it every project begins and end on the lathe. Have fun Stew |
| NickG:
That sounds like a nice project Stew. Your little break project is probably larger than anything I've tackled so far! :poke: :lol: Can't wait to watch this one unfold. Nick |
| Darren:
This will be an interesting one to follow .... what's in your tailstock :scratch: |
| sbwhart:
--- Quote from: Darren on December 02, 2009, 07:33:05 AM ---This will be an interesting one to follow .... what's in your tailstock :scratch: --- End quote --- A cork out of a bottle of bubbly to keep the s**t out. :thumbup: Stew |
| rleete:
--- Quote from: Darren on December 02, 2009, 07:33:05 AM ---what's in your tailstock --- End quote --- That's a rather personal question, doncha think? |
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