Friday, September 25, 2009

2.375" Motor, Starting Nozzle

I managed to start the nozzle. I'm starting with 2.75" diameter stock which is less than ideal; I would prefer to start with some thing closer to the OD of the finished part, but it's what I have on hand. It shouldn't be too bad though since I added a new, larger motor to the lathe a while back. I've only done some light turning with the new motor, so I can't wait to find out how aggressive a cut it'll handle. The starting piece is about an inch and a half longer than the finished part will be and weighs nearly nine pounds. I would guess that the finished nozzle will come in at around 1/2 lb. The general plan is to machine the divergent section, throat, shoulder, and index the retaining screw locations. Then part off the nozzle, flip it, and finish the convergent side


Magnus Gudnason said...

Hi Randy,

your last blog's have been really interested to read. Good luck with the project.

ps. Can you please send me your email address. I have been trying to send you an email with no luck.

Randy Dormans said...

Hey Magnus,
Great to hear from you! I'm glad someone finds it interesting, nothing really unusual about this project, I'm just trying to get back into it. What are your plans for the 100mm SRM?