Arnold's take on the MEM Corliss

[Stilldrillin]

Well done Arnold!     

A great runner, "straight out of the box". 

And, finishing off, will improve it further! 

Very pleased for you...... 

David D

[arnoldb]

Jo, Jason, Don, Vince& David, Thanks !

Enjoy the studs. 

  - I'll try.  Need to make some holding bits first, and set up the mini lathe properly; it's been languishing for two years and never really did anything, and it's about time the ML7 had a bit of a rest...

PS keep it on the slow speed

Aye - definitely.  Once she's fully done, I'd like to run her as slow as possible - no use in missing out all the interesting action in a blur of motion!

Vince, not a silly comment    This is per the plans - you can check here.  You could change it over to run on the front, but then you'd need to make some changes first. 
As it is currently, the bolts on the top two linkages would foul on the valve rod, and the mounting section of the valves are a tad short.
So if you'd have to make the "eccentric rod to valve disk swivel" longer to add some room to add the clearance for the valve arms.  And then there's a choice to overcome the "too short" mounting ends of the valves; the easiest would be to make the valve disk hub about 3-5mm shorter and adjust the spindle dimensions accordingly - with this way all the other measurements and dimensions stay the same.  If you don't change the disk hub dimensions, you'd have to make the turned-down section on the valves about 3mm longer, as well as bend the "eccentric to disk rod" a bit more to compensate.
Sounds like a lot to say, but it's not difficult once you choose the way you'd like.  If you want to add the governor, you might have to be a bit more careful; I didn't check how the changes would affect that.

Kind regards, Arnold

[Bearcar1]

Greetings Arnold, and as usual, I'm late for the party.Ya **just** couldn't wait until you were finished before you put the air to it could ya?    I couldn't either. What a splendid thing to behold! Some tweaking here and there yet to do but still, it is so majestic in stature. Nice and slow. It's a beauty for certain. You are planning on building the governor? Yes, No? Maybe? Well done and thank you for sharing the ride with us. 


BC1
Jim

[Tennessee Whiskey]

There has got to be something to this "Lazy Way" of doing things as that is just absolutely, positively, stinking awesome. I'm speechless and that very rarely happens to me.

Whiskey

[tel]

GEEZ! I missed a couple of episodes and now it's running! Well done Arnold!

[pgp001]

Arnold

Lovely job, it must be very satisfying that it runs so well first time.

Just one question, is it designed to run in that direction ?
My Pollit & Wigzell runs the opposite way, the theory being that the crosshead thrust will be downwards onto the slides which are machined into the bedplate. I suppose with a trunk guide it makes no odds which way it runs.

Phil

[Maryak]

Even though the piston still needs a ring, and nothing is bolted to the base (the screws you see are just dropped in to locate things but not bolted up), and there's not a gasket in sight, it runs, and surprisingly well at that:

And that my friend is proof positive of your skill as a model engineer.

I cannot say how much it means to see the successful fruit of our labours in the flesh.

Congratulations.

Best Regards
Bob

[ths]

Just saw the vid Arnold, you must be on top of the world. Well done, and to the designers as well.

Cheers, Hugh.

[ozzie46]

   Hooraaaayy!! It runs.  The fact that it runs without gaskets and the other stuff is testiment to your skill and the viability of the design. Thanks to all who worked on developing it and to you for taking us a long for the ride.   

   Ron

[Captain Jerry]

Of course it runs!  It is meant to!  That's the way it was designed!  The only thing that would keep it from running is sloppy work and there is no evidence of that here.  Just good, careful, step by step progress to an inevitable conclusion.  Still, it is magical, majestic, and cool as it can be.  Makes you want to just sit and grin, don't it!  Oops! I went redneck there for a minute. Hope you don't mind.

I could have just said "Nice work" but these things really deserve a celebration so, here 
Three cheers.

Jerry

[sbwhart]

Way to go Arnold 

What a great running engine ticks over real slow and that linkage looks like a spider doing the tango   

I've followed along quietly and a must say what an interesting project 

Stew

[NickG]

Looks great and runs just as well - well done Arnold and to those who designed her.

Nick

[ProdEng]

Looks and sounds fantastic at low speed, well done Arnold 

[b.lindsey]

Simply excellent in every respect Arnold.  The fact that is runs so well even now, should make the finishing work all the more satisfying. I'll be following along until the very end!!

Bill

[gbritnell]

Outstanding work on the Corliss. I really enjoy watching the valves working. When it's painted up it will be quite an impressive model.
gbritnell