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Potty Over Crank Wall Engine

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sbwhart:
Started to cut metal for this engine: for those of you who didn't pick it up her's my thread on the design

http://madmodder.net/index.php?topic=3990.0

And a pic of the engine the model will be based on.



Using a chunk of brass donated by John:- thanks John  :thumbup: first square it up and bring it to size with a fly cutter.





Then with a 18mm end mill cut a couple of scallops down the sides,



Then set the boring bar up to cut a 12.5 mm rad



Open the scallops out to 12.5 mm rad



And counter bore them out to 15 mm rad



so you've got this



Then turn up a couple of brass spools that fit into the scallops



And you've got your self a twin cylinder.



Well you will have when you've silver soldered them together thats a job for the week end :- if I can sneak away, our son and wife are staying with our new baby granddaughter, so we will have a string of visitors ho-ing and ar-ing,  and doesn't she look like youing.

 :D :D :D :D :D :D

Really looking forward to it

Stew

raynerd:
Great to see you have started cutting metal for this engine Stew and really look forward to the rest of the build. Please keep posting and especially the photo`s of the machining methods, I always learn a lot. Looking forward to it.

Chris

Rob.Wilson:
Hi Stew


Aboot time  :poke:  :D  ,,,,,,,,,,,,,,,,, i can see this being an interesting  build  :ddb: :ddb: :ddb:



Rob

Dean W:
Potty Engineering strikes again!  You've made a good start, Stew.

Dean

Bogstandard:
A good start Stew.

There is a great advantage in making a one off, there is no one looking over your shoulder saying that you are doing it all wrong. You have total control over how it is built, and as long as it looks right and works correctly at the very end, then what you have done is right.

If you need anything else, as you know, you only have to ask.


John

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