Chris's Holly Pumping Engine Build

[cnr6400]

 

[steamer]

And moving on to the middle level catwalk brackets, just like the first ones but shorter horizontally...

I really like that fixture.   That would work well on the F1.....

Dave

[Roger B]

Looks and sounds better every time    It must be difficult trying to compensate for the expansion of steam with compressed air    So many fine details 

[Craig DeShong]

I can tell you love making catwalk brackets  Chris

I wonder if doing it by hand is faster or slower than by CNC 

Jo

At least there are only a couple dozen of these, with just a couple setups for each batch. What I REALLY love (  ) is making crawler tracks by the hundred..... 

I will no longer bitch about nine cylinders 

Love the catwalk,  it’s going to look superb with the stanchions in place.

[crueby]

Thanks guys! 


Roger, there are 14 valves controlling inlet and exhaust, so lots to get timed for center and edges. Plus two balance valves leading from the main throttle to the IP and LP cylinders added for the compressed air running. Lots to tune!


Craig, lots of brackets, but no where near the precision needed of your 9 cylinder assemblies!


All getting close to done all of a sudden, I am kind of surprised how quickly the catwalks are going together.

[propforward]

I am kind of surprised how quickly the catwalks are going together.

I’m not. You’re a workshop wizard!

[crueby]

I am kind of surprised how quickly the catwalks are going together.

I’m not. You’re a workshop wizard!

Hopefully a better one than Bullwinkle was!

 

[crueby]

Continuing on with the second catwalk brackets, got all the milling cuts for the profiles down except for parting them off from the bar:

This batch is definitely going quicker now that I have the procedure down, and have combined some steps to reduce the number of  times they need to be put in/out of the jig. As they say, Practice Makes A Mess. Or something like that...

[cnr6400]

Great looking chocolate moulds! Re the saying - I thought it was "practice makes Ford Prefects" - at least that might be it if you were from Dagenham in the UK.....

Just kidding, the brackets look great. 

Nice to see Bullwinkle's cameo appearance!

[crueby]

After cleaning the 'moulds' off after CNR gave the elves the chocolate idea    , got them cut off the main bars and painted, got the first set installed onto the engine:


Get the rest on, then can start on the rim angle channel like on the top level...

[Dan Rowe]

Hi Chris, nice work, the catwalks really show the scale of this massive engine.

Cheers Dan

[crueby]

More tuning work on the valves, think its about there. Its running nice and slow, and a lot smoother now.
<a href="https://www.youtube.com/watch?v=W6KILoVFCMU" target="_blank">http://www.youtube.com/watch?v=W6KILoVFCMU</a>
 

Also getting the second level of catwalks further along, the straight edge channels are on, ready to start bending up the curved corner sections:

[wagnmkr]

The sound instantly reminded me of the old Jack Lemmon movie, How To Murder Your wife. It sounds like the Globida, Globida machine. You just know I'm going to hear that all night now!

[ddmckee54]

sounds like the Globida, Globida machine

I always thought that was the Glopetta Glopetta machine, too many years spent driving a bellowing tractor in my youth I guess.

[crueby]

sounds like the Globida, Globida machine

I always thought that was the Glopetta Glopetta machine, too many years spent driving a bellowing tractor in my youth I guess.

Dont know that one!