After almost a year my doctors have very reluctantly gave me the ok to get back into the shop with a lot of restriction. I have finally got my hands on a pdf of what we called a “basic engine”. The measurements are a scale drawing from the Pratt & Whitney company. I have been trying to make a rotary pattern to carve but my mind is having a problem figuring this out correctly (part of my medical issues). So, I’m asking you all for help. I worked on this jet engine in one form or another for 20 years on EC-135 and RC-135. Thanks for any help.
Bob
Hopefully this is what you are looking for. My dust collection system is presently down, so I can not run a test carve. I think it is close to what you wanted. I am not an expert. some sanding probably required to smooth out angle transitions.
I used Designer 3, breaking the diagram down into rectangles and trapazoids, and the tilt tool for transition angles. It could also be done using an axis outline and the flair tool,but I had some difficulty with that do to lack of experience. Something I will work on as a learning experience.
I thought I would give this a try. I have not used Designer in awhile. I made an outline and extruded it. Then copied and pasted the extrusion into a rotary project. (I also made a pattern from the extrusion to see if I could get rid of the little artifact waves. It did not.)