Falk Locomotive build

[bparrish]

Test run of the gears together.  I designed the bull gear shaft stanchions to be adjustable so as to be able to bring the gears in.  I missed by .010" and had to shim up the stanchions.

The pinion gears is threaded onto the small shaft while the bull gear will be pressed onto the larger.  there are to be two cable capstans on the ends of the bull shaft so that is the next objective.

see ya
Bob

[S&S RR]

Now that is some great maching work!

[bparrish]

I started on the gypsy engine yesterday.  This is a small double acting single cylinder steam engine that drives the winch on the front of the locomotive.  The curious thing about it is that it is not reversing.  That means that the loggers that used the loco and winch had to yard stuff in but had to manually pull the cable back out for the next log.  I saw this loco in June in Eureka and the pinion gear is brass and the teeth are completely worn over on one side only.  The other is as if they have never been used.

The cylinder mounts inside the cab and protrudes through the left side front wall under the window.

Pretty amazing.

This then is the cylinder with the packing nut for the cylinder rod and the steel cross head rails.  I had a lot of fun making this up...... only needed to make one.......... that's a plus  ! ! ! !

see ya
Bob

[cuse]

Pretty amazing.

you said it


John

[T.C.]

Really nice work !
It's amazing how many steps and setup's it takes to machine the "old way" compaired to the new macines where you plot the path and push the button to start the machine .
When you machine this way you really have to think ahead and plan the next step and how to hold the part, sometimes it takes longer to set up to cut, than to do the actual cutting.
They say it's the operator of the machine, not the machine that makes a good part.
I think you are proving that to be true.
Very nice !!
T.C.

[bparrish]

T C

Your observations about making a set up are absolutely correct.  I write milling orders to myself just to get things in the right order.  Like holes up the center of things.  Always near the top as often a piece cannot be held well later on.  Also, the hole becomes the bench mark for true center when a part needs to be "re-chucked" for a second or later cut.

Often a setup takes much longer than the mill step or drilling procedure.

I 'm doing all of this on a 1961 vintage Unimat that does not have automatic anything.  Well it does have an electric motor............

Great fun however.

I got the cross head and piston rod done late last night.  I'll put up a photo later today.

Thanx
Bob

[Oldguy]

Man, ya got crazy machining skills.  I think I might have touched a lathe once.

[Jerry]

That's some beautiful work Bob.

Jerry

[bparrish]

So here is the piston rod and cross head slide. 

The prototype has a bronze carrier bearing so I made the whole thing in bronze.  The rod is 1/16th" steel rod threaded to 1-72.  I don't know why the camera made the piston rod look like it has threads but it doesn't.  It is absolutely smooth rod.

The notch is where the connecting rod will go and the wrist pin will be drilled through and be trapped between the cross head rails.  There is no space for screws or clevis pins.

see ya
Bob

[S&S RR]

T C

Your observations about making a set up are absolutely correct.  I write milling orders to myself just to get things in the right order.  Like holes up the center of things.  Always near the top as often a piece cannot be held well later on.  Also, the hole becomes the bench mark for true center when a part needs to be "re-chucked" for a second or later cut.

Often a setup takes much longer than the mill step or drilling procedure.

I 'm doing all of this on a 1961 vintage Unimat that does not have automatic anything.  Well it does have an electric motor............

Great fun however.

I got the cross head and piston rod done late last night.  I'll put up a photo later today.

Thanx
Bob

The process of machining is no different with the CNC than with the equipment Bob is using. With the CNC the thinking is being done up front by the designer rather than the person running the machine. We found in the Auto Industry that the best people to do the CNC programing where the good machinists.  The machines don't think they just do what you tell them to do.  Bob you are a great machinist and designer!!!!

[jrmueller]

Bob you craftsmanship continues to be fascinating. I don't know if you can make it to the EXPO but it would be great to have an "unveiling party" there.  Or maybe we could all get together on one of those dreaded social media sites.  Jim

[coors2u]

Awesome work Bob!

[ACL1504]

Bob,

This is just unbelievably very well done. A wonderful thread.

Tom.

[GPdemayo]

What Tom said! 

[bparrish]

Jim and all....

Thank you for all of your very nice remarks........

I don't know where the Expo is but I doubt if it is in the west. 

The Falk is going to the national NMRA in Portland next year.  I should have it ready by then.  I still have a long way to go.

Regarding the social network stuff............ I share enough modeling time here that I'm not sure I want to further bang on a computer,,,,,,,,,,,,,,,  This forum is the best..........

Again.....thanx
Bob