Author Topic: Flyboy Jim's PM Research #5  (Read 28229 times)

Offline propforward

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Re: Flyboy Jim's PM Research #5
« Reply #165 on: January 25, 2020, 01:28:48 PM »
Very nice group shot Jim, I am also enjoying and appreciate your set up shots. Nice work all round.
Stuart

Forging ahead regardless.

Offline cnr6400

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Re: Flyboy Jim's PM Research #5
« Reply #166 on: January 25, 2020, 01:56:55 PM »
Top notch work Jim!  :ThumbsUp: :ThumbsUp: :ThumbsUp: :popcorn: :popcorn: :popcorn:
"I've cut that stock three times, and it's still too short!"

Offline zeeprogrammer

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Re: Flyboy Jim's PM Research #5
« Reply #167 on: January 25, 2020, 02:25:57 PM »
Good looking parts there. Thanks for the family shot.  :ThumbsUp:
Carl (aka Zee) Will sometimes respond to 'hey' but never 'hey you'.
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Zee-Another Thread Trasher.

Offline Dave Otto

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Re: Flyboy Jim's PM Research #5
« Reply #168 on: January 25, 2020, 11:05:41 PM »
Wow ! everything is looking great Jim.

Dave

Offline Flyboy Jim

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Re: Flyboy Jim's PM Research #5
« Reply #169 on: January 28, 2020, 03:16:56 AM »
Thanks Guys. It feels like I might be building a little momentum.  :)

No idea on color yet Thomas. Ideas?

Tackled the Piston and  Piston Rod next. Turned the supplied brass rod to the correct size and cut the grooves for the rings.



Drilled and reamed for the piston rod.



Moved the chuck over to the mill and centered under the spindle.



Milled the  recess for the nut on the end of the Piston Rod. Then moved the chuck back to the lathe and parted the Piston off.



Cut the previously made Piston Rod to length and threaded the end (not shown)

I guess I finally have what could be called an assembly.  :thinking:





Jim
Sherline 4400 Lathe
Sherline 5400 Mill
"You can do small things on big machines, but you can do small things on small machines".

Offline crueby

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Re: Flyboy Jim's PM Research #5
« Reply #170 on: January 28, 2020, 03:38:16 AM »
Dang dude!   :ThumbsUp: :popcorn: :ThumbsUp: :popcorn:

Offline zeeprogrammer

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Re: Flyboy Jim's PM Research #5
« Reply #171 on: January 28, 2020, 12:03:16 PM »
Assembly looks great!

How did you center to the spindle? I can't tell from photo.
Carl (aka Zee) Will sometimes respond to 'hey' but never 'hey you'.
"To work. To work."
Zee-Another Thread Trasher.

Offline Flyboy Jim

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Re: Flyboy Jim's PM Research #5
« Reply #172 on: January 28, 2020, 01:39:45 PM »
Assembly looks great!

How did you center to the spindle? I can't tell from photo.

Good Morning Zee. Glad the surgery went well and is behind you.  :ThumbsUp:

My Starrett Last Word DTI is in the spindle and is being used like a poor man's Coaxial Indicator. Just turn the spindle, moving the DTI around the outside of the piston and adjust the X and Y for zero in all directions. Hint: I made this much easier to do by first putting a drill the size of the center hole into the spindle and then adjusting X and Y so the drill would go in the hole. That gets the work to within a few thou and makes the final adjustment with the DTI much easier. When I want to center the RT I use a tool I turned to fit the hole in the RT in the same manner.



Jim
Sherline 4400 Lathe
Sherline 5400 Mill
"You can do small things on big machines, but you can do small things on small machines".

Offline zeeprogrammer

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Re: Flyboy Jim's PM Research #5
« Reply #173 on: January 28, 2020, 01:50:24 PM »
Thanks. I've used both methods. The DT has been hard for me.
Carl (aka Zee) Will sometimes respond to 'hey' but never 'hey you'.
"To work. To work."
Zee-Another Thread Trasher.

Offline Flyboy Jim

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Re: Flyboy Jim's PM Research #5
« Reply #174 on: February 02, 2020, 03:23:31 AM »
A couple more sessions and a few more parts.

First up was the Steam Valve casting. Milled all four edges slightly oversized to leave room for adjustment later.



Used my flycutter to flatten the top and bottom and bring the height into spec.





Milled the recess into the bottom of the Steam Valve.



Turned the Valve over and milled the slot for the Valve Rod.



Then the slot for the Valve Cross Nut.



Next up was the Valve cross Nut.



Sub family shot.



Assembly shot.



Jim
Sherline 4400 Lathe
Sherline 5400 Mill
"You can do small things on big machines, but you can do small things on small machines".

Online Kim

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Re: Flyboy Jim's PM Research #5
« Reply #175 on: February 02, 2020, 06:00:08 AM »
That's a very nice looking steam chest, Jim!  A family shot to be proud of!

I didn't think they usually included the steam valve as a casting.  I figured a little part like that they you wouldn't even see in the finished engine would have been a chunk of bar stock.  But it sure looks nice!
Kim

Offline Flyboy Jim

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Re: Flyboy Jim's PM Research #5
« Reply #176 on: February 02, 2020, 12:50:32 PM »
That's a very nice looking steam chest, Jim!  A family shot to be proud of!

I didn't think they usually included the steam valve as a casting.  I figured a little part like that they you wouldn't even see in the finished engine would have been a chunk of bar stock.  But it sure looks nice!
Kim

Thanks Kim. I agree.............the Steam Valve would of been a lot easier to make out of bar stock.

Jim
Sherline 4400 Lathe
Sherline 5400 Mill
"You can do small things on big machines, but you can do small things on small machines".

Offline bent

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Re: Flyboy Jim's PM Research #5
« Reply #177 on: February 03, 2020, 05:38:19 PM »
Still lurking and taking notes.   Nice work Jim!  :popcorn:

Offline propforward

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Re: Flyboy Jim's PM Research #5
« Reply #178 on: February 03, 2020, 11:27:07 PM »
Coming along very nicely. You can’t be too far away from a running engine now?
Stuart

Forging ahead regardless.

Offline Don1966

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Re: Flyboy Jim's PM Research #5
« Reply #179 on: February 03, 2020, 11:59:40 PM »
Making good time Jim you and Chris a setting a pace here.... :Love:
Oh love the family shot....


 :cheers:
Don

 

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