Pacific Vapor Engine from Morrison & Marvin Castings

[b.lindsey]

Beautiful work on those Dave, and talk about some small fiddly parts...wow!!

Bill

[terryzilla]

Dave,   

Great work as always.
Do I see swarf?   For a minute I thought the post was from someone else.   

Terry

[zeeprogrammer]

Zee is going to give me hell because I forgot to take any pictures of the first operation.

No way. I fear the retribution. 

Amazing work Dave. Makes me question whether I'll ever get to that level.

[Dave Otto]

Bill, Terry, Zee; thanks for the support and following along with this multi year project!

Terry I'm sorry; things got carried away and I forgot to remove the evidence. I will try to do better next time.

Zee, you let me off so easy; I'm surprised! 

Thanks again guys,
Dave

[Kim]

Dave,
You're work always amazes me.  I love to watch you work.
Thanks for taking the time to share. I always learn something.
Kim

[Dave Otto]

Kim, thanks for checking in, and your kind words.

Much appreciated,
Dave

[Dave Otto]

Hi Guys


Next up is the fill plug; this is a machined brass piece that gets a nice wood knob attached later on.


First the stock has two diameters turned and also the chamfer for the thread. Then it is parted off a little long to have a chucking lug for the next operations. The larger diameter is where the hex will be cut.



After parting off, the piece is flipped around and the chucking lug is turned down to its final size. Part of the chucking lug will be included in the finished piece.



Using a hand ground HSS lathe tool bit the relief is machined.



Here are the 4 finished blanks ready for the mill.



Using a collet fixture the 9/32-32 thread is milled and the hex also milled in the same setup.



Back in the lathe the chucking lug is cut down to the finished length.



Using the same collet fixture the top end of the plug is machined; the two small pins will engage in holes in the knob and the 1-72 threaded hole in the center will be used to hold the knob in place.

Thanks for checking in.
Dave

[zeeprogrammer]

 

And I still like that table top.

[Dave Otto]

Thanks Zee!

Yes pretty hard to beat a good ole solid maple work surface.

Dave

[Flyboy Jim]

Dave,

I don't drift over to these threads like yours too often, since they're so far over my head. However, I must say that I really like the small parts you just made.

Also, I just saved the pic of the bit you ground to make the reliefs. I have some blanks and want to make one of those. It'll be my first tool grinding experience.

Jim

[fumopuc]

Hi Dave, perfect as usual.

[Tennessee Whiskey]

Beautiful work Dave,  even the swarf looks good . I like the maple tops too,  they are kinda like blue jeans,  they look better with some wear to them  .

Cletus

[Don1966]

Dave that hand is way to clean buddy need a little grease or something on it. Kind of make look artistic........ you know I am still bragging on your nuts to.......
As usual top notch work buddy......

 
Don

[Art K]

Dave,
I must admit that since I've been laid up and not supposed to be gripping with my right hand I've had a bit more time on my computer. I realized that while I was focused on my own project I completely missed you're Pacific build, to my loss. I've only caught up to page 9 but I'm working my way through. Wow! keep up the good work. I enjoyed the bit about pouring babbot bearings.
Art

[Dave Otto]

Hi Art how is the finger healing?

Thanks for perusing  through my marathon Pacific build; I never intended to go this long but that is kind of the way my projects turn out. I have a few more engines (well a lot more)  that are calling my name, but I'm committed to the Pacific until it is complete; I'm hoping for this summer or early fall but we will see about that. 

This project has/had a couple diversions that ended up being major projects in their own right. The Goulds pump and the 4 post oilers (both of which will help complete the model); have been a huge amount of work. Thanks Maury for the help with the pump project and Roland and Marvin for the help on the oiler project.

This is also the project that started the whole Dave Otto's nuts thing.

Achim, Eric, & Don, thanks for your continued support; I appreciate it.

Jim glad you stopped by; please don't be shy. Hopefully my ramblings may give you at least a couple of ideas; I'm not an expert by any means I just use what I have learned and what works for me.

Thanks again guys,
Dave