Author Topic: 2.5" Gauge Green Arrow Build  (Read 23483 times)

Offline stevendavis

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Re: 2.5" Gauge Green Arrow Build
« Reply #45 on: January 15, 2026, 03:29:33 am »
Started doing some work on building the lubricator. The tiny ratchet gear was a bit of trial and error until I got it right.
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Offline stevendavis

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Re: 2.5" Gauge Green Arrow Build
« Reply #46 on: January 15, 2026, 03:32:26 am »
Some more pics of the parts.
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Offline stevendavis

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Re: 2.5" Gauge Green Arrow Build
« Reply #47 on: January 15, 2026, 03:34:08 am »
Couple more.
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Offline stevendavis

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Re: 2.5" Gauge Green Arrow Build
« Reply #48 on: January 15, 2026, 03:41:46 am »
Also soldered the box together.
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Online Kim

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Re: 2.5" Gauge Green Arrow Build
« Reply #49 on: January 15, 2026, 05:20:03 am »
Those are some nice looking parts for your lubricator!  And the solder job on the box looks great.  Is that soft solder?

Kim

Offline Roger B

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Re: 2.5" Gauge Green Arrow Build
« Reply #50 on: January 15, 2026, 08:04:01 am »
Those are some neat little pieces  :ThumbsUp:  :ThumbsUp:  :wine1:

How did you cut the ratchet wheel?
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Roger

Offline stevendavis

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Re: 2.5" Gauge Green Arrow Build
« Reply #51 on: January 15, 2026, 07:16:05 pm »
Those are some nice looking parts for your lubricator!  And the solder job on the box looks great.  Is that soft solder?

Kim

Thanks Kim
Yep, I used soft on the box. I still need to add the mounting flange to the box.
The prints also have no mention of a lid. Is a lid important? It will be positioned under the smoke box.
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Offline stevendavis

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Re: 2.5" Gauge Green Arrow Build
« Reply #52 on: January 15, 2026, 07:23:39 pm »
Those are some neat little pieces  :ThumbsUp:  :ThumbsUp:  :wine1:

How did you cut the ratchet wheel?

To cut the ratchet wheel I used my rotary table with a chuck. I ground a 48* cutter and used a fly cutter to cut the teeth. Very shallow cuts.
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Offline stevendavis

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Re: 2.5" Gauge Green Arrow Build
« Reply #53 on: January 15, 2026, 07:30:32 pm »
Got the hole in the box for the spindle and bearing. I still need to make the check valve. Made the brass nuts this morning.
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Online Kim

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Re: 2.5" Gauge Green Arrow Build
« Reply #54 on: January 15, 2026, 10:48:02 pm »
The prints also have no mention of a lid. Is a lid important? It will be positioned under the smoke box.

Hmm.. I don't really know.  Seems like you might want to keep dust & dirt out of the oil, but maybe that's not really a big problem?

Kim

Offline crueby

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Re: 2.5" Gauge Green Arrow Build
« Reply #55 on: January 15, 2026, 11:29:03 pm »
Lid could also keep oil from sloshing out?

Offline john mills

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Re: 2.5" Gauge Green Arrow Build
« Reply #56 on: January 16, 2026, 07:15:09 am »
you need the lid to keep dust dirt and ash out
john

Offline stevendavis

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Re: 2.5" Gauge Green Arrow Build
« Reply #57 on: January 17, 2026, 12:11:23 am »
Thanks!
I think I will try and figure out a lid system for it.
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Offline stevendavis

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Re: 2.5" Gauge Green Arrow Build
« Reply #58 on: January 17, 2026, 11:04:14 pm »
Had to make the trunnion and machine down some stock on hand. Using a field tip for an arrow works great as a small dead center. A Jacobs chuck in the 3-jaw also works great for holding small parts for finishing work. 
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Offline stevendavis

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Re: 2.5" Gauge Green Arrow Build
« Reply #59 on: January 19, 2026, 03:50:46 pm »
Got some work done on the cylinder for the lubricator. Also made up some 8 BA nuts for the spindle and trunion. Machined them for a 5mm wrench. Next is the check valve.
If you want to see my super power, pull my finger!

 

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