PMR 7 Twin Cylinder Steam Engine

[zeeprogrammer]

Nice work Zee. Hey, at least you were able to retrieve the broken bit. I think a Stanley Zeeamer would be a great project for a new old retiree with all that time on his hands 

Please refer to previous post. 

And he's got elves to help.

[zeeprogrammer]

Speaking of the Stanley...If I have a dream...it would be a 4 cylinder VW air-cooled engine for a 1965 or earlier Beetle.
If anyone knows plans for such a thing...

I miss my 65 Beetle. 6V system. Had to put in a 12V converter to get an 8-track to work. The car's horn wouldn't work unless I was doing 20mph or higher.
Even then, the 8-track wouldn't change tracks. I had to drill a hole, wire a pencil to the solenoid, and press it when I heard a thunk when it tried to change tracks.

The back seat was small...but service-able 

I went the back way through the army base and would have to speed up down a hill to skip over a small river to see my girlfriend.

I like to think I was more stupid then than now.

P.S. MPs are not your friend.

P.P.S I'm still kinda stupid. 

[crueby]

Nice work Zee. Hey, at least you were able to retrieve the broken bit. I think a Stanley Zeeamer would be a great project for a new old retiree with all that time on his hands 

Please refer to previous post. 

And he's got elves to help.

AHA! Zee finally admitted that my elves are helpful, rather than evil little beasties!   

[crueby]

Speaking of the Stanley...If I have a dream...it would be a 4 cylinder VW air-cooled engine for a 1965 or earlier Beetle.
If anyone knows plans for such a thing...

I miss my 65 Beetle. 6V system. Had to put in a 12V converter to get an 8-track to work. The car's horn wouldn't work unless I was doing 20mph or higher.
Even then, the 8-track wouldn't change tracks. I had to drill a hole, wire a pencil to the solenoid, and press it when I heard a thunk when it tried to change tracks.

The back seat was small...but service-able 

I went the back way through the army base and would have to speed up down a hill to skip over a small river to see my girlfriend.

I like to think I was more stupid then than now.

P.S. MPs are not your friend.

P.P.S I'm still kinda stupid. 

8-track?! Wow, he IS old...

Love how the horn wouldn't work at low speeds. Guess if you were going slow the pedestrians should see you coming and get out of the way.

Given how many of them were made for so many decades, seems like someone should have printed up plans for one.

[b.lindsey]

8 track was still state of the art when I was in high school. I can relate Zee. Fun times!!

Bill

[zeeprogrammer]

8 track was still state of the art when I was in high school. I can relate Zee. Fun times!!

Well gee Bill. We're the same age. For 13 more days.

I was very much into WWI and bi-planes. The horn would just do a bip-bip-bip.
With a bug in the appropriate position on the windshield...I would use it as a sight and go bip-bip-bipping shooting cars on the highway.
Such a kid.

I only did that when I was alone. I was stupid...but not that stupid.

P.S. I actually thought you were much younger than I.

[b.lindsey]

It must be those Dick Clark genes Zee 

Bill (oh and the count is 32 days now, but I'm still not counting)

[zeeprogrammer]

Bill (oh and the count is 32 days now, but I'm still not counting)

Liar. 

I got to counting the number of lunches, the number of stop lights, the number of trips, the number of times I wore a certain pair of pants or shoes...

Yeah...I was ready.

The question now is...what am I counting? 

[crueby]

Bill (oh and the count is 32 days now, but I'm still not counting)

Liar. 

I got to counting the number of lunches, the number of stop lights, the number of trips, the number of times I wore a certain pair of pants or shoes...

Yeah...I was ready.

The question now is...what am I counting? 

The number of parts till that engine spins on air!

[zeeprogrammer]

Finished the eccentric hubs.

1st pic shows the part getting centered in the 4-jaw. The indicator has a flat tip on it.
2nd pic shows the groove within which the end of the connecting rod sits after going through the eccentric (yet to be made).
3rd pic shows the part offset by 0.100 (or thereabouts).
4th pic shows the part drilled and reamed for the crankshaft.
5th pic shows the hole for the set screw being found.
6th pic shows the set screw hole drilled and tapped.
7th pic shows the eccentric hubs done.

Ignore that shameful piece of metal to the left. I drove the carriage in the wrong direction. Does not belong on the 'wall of learning'.

Belongs on the 'wall of weren't you listening last time!?' 

[b.lindsey]

You made fast work of those three, er two pieces Zee. Not much left now. Should be running by the weekend if all goes well

Bill

[zeeprogrammer]

You made fast work of those three, er two pieces Zee. Not much left now. Should be running by the weekend if all goes well

Main things left include the eccentrics, drilling/tapping the mounting holes in the cylinder, a bit of sanding to knock down those dimples I made, drill/tap the holes in the crossheads for the piston rods, and I may take another run at the flywheel to make the dome a bit more symmetrical. Oh...need to make three more pipe nipples.

By these weekend I should have it assembled unless I've made a major boo-boo keeping things squared up.

Running is another story. 

[mklotz]

Re: "3rd pic shows the part offset by 0.100 (or thereabouts)"

Getting an accurately spaced offset on an eccentric in situ on the 4jaw can be a bit awkward.  I have a bit easier way to do it.  Prior to mounting in the 4jaw, center the workpiece on the mill, then move the mill table 0.1" (or whatever is required) and drill a shallow center hole.  Then stick the piece in the 4jaw and put the conical tip of an edge finder held in the tailstock chuck in the center hole.  Adjust the 4jaw until the edge finder shows no runuout and you're done.

A pump center and the DI can be used in lieu of the edge finder if desired.

[crueby]

Moving right along!   

[bent]

Nice tip, mklotz.

Zee, it's getting close to vroom time!  Keep it up!