Author Topic: Joe's 1" Minne TE  (Read 77282 times)

Offline joe d

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Re: Joe's 1" Minne TE
« Reply #30 on: February 09, 2015, 04:07:39 AM »
Wow... left off when I was going out of town for a week... took a little longer to get back to the project ::)

When I last worked on this, I had come to the conclusion that the V 1.0  hornplates had to go, just to many errors
piling up.

So started back in this week by making V 1.1 , with (mostly) the right holes in the right places,
much happier with this set.

one side:


other side:


and the driver's view:


should be good for some concerted work on this now, got most of the "extra" projects out of the way

Cheers, Joe


Offline ths

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Joe's 1" Minne TE
« Reply #31 on: February 09, 2015, 10:43:21 AM »
Hi Joe,

Good to see this moving on, I'm a great admirer of Minnie. Good work on the hornplates - is there a known issue with these? Looking forward to more, I know how life gets in the way!

Cheers, Hugh.

Offline joe d

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Re: Joe's 1" Minne TE
« Reply #32 on: February 09, 2015, 08:47:35 PM »
Hi Hugh

I think the issue with the hornplates was me   :censored:, not Mr. Mason.  Haven't had any issues with the drawings so far.

Joe

Offline b.lindsey

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Re: Joe's 1" Minne TE
« Reply #33 on: February 09, 2015, 09:08:07 PM »
Just went back through the thread Joe to get back up to speed. Nice to see you working on it again.

Bill

Offline joe d

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Re: Joe's 1" Minne TE
« Reply #34 on: February 11, 2015, 03:07:38 AM »
Hi Bill

Thanks for looking in.  I'm glad to be back at it.

Joe

Offline joe d

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Re: Joe's 1" Minne TE
« Reply #35 on: February 12, 2015, 03:32:51 AM »
Next up is the gear selection lever.  Happily all from the "come in handy" pile of off-cuts from other things....

shaping the bracket that bolts on to the back plate


then indexed it around the drill bit that made the hole to remove the bulk of the unwanted metal before finishing rounding it over with a file


Started the forked lever by boring out the end of the stock


then through drilled both ends, and silver soldered in a bit of drill rod


Cut out the middle bit and filed the pins down to size


milled away a bunch more of the parent stock


turned the handle in the Taig lathe


soldered the handle onto the end of the lever, cleaned everything up a bit, attached the fork to the bracket with a temporary cap-screw while I wait for the die to thread the real pivot pin, and bolted it into place


Next up will be the water gauge.

Cheers all, Joe

Offline joe d

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Re: Joe's 1" Minne TE
« Reply #36 on: February 16, 2015, 05:28:20 AM »
Got the water gauge mostly done now (haven't acquired the glass yet :Lol:)

turned a bit of bronze, and threaded one end, then screwed that into a slug of ali in the 4jaw.
This was pretty unstable at the length sticking out, so ran a temporary centre out of the tailstock
and took really light cuts.  Used a ball end mill to form the transition from the shaft to the base of the part


once all the turning was done, chucked it up in the Taig to drill out the steam passage (the second time around.  First time,
drilled it the same time I threaded the end, and it sheared off when I tried to do the turning...not enough meat left for the
stresses imparted :hammerbash:  note the high-tech depth gauge on the drill bit. Tolerance of +/- 1/8" on this hole.... :Lol:


these parts have tapped or threaded spigots coming off them, this was straightforward turning drilling and tapping,
and then assembled with some flux and silver-soldered


and then into the pickle, and do it all again for the upper end. 

The lower fitting has a blow-down valve so turned and threaded a bit of stainless (started out life as a 1/4"bolt) as a valve spindle.  The big lathe can't handle stock this small in it's 4 jaw, so for a previous project I had turned a spindle that mimics the spindle nose of my Taig lathe so I can use the collets that fit that lathe in it's big brother


Turned, drilled, tapped, knurled, and parted off a bit of 12L14 for a handwheel


Made a really small locknut for the handwheel in the Taig


finally, made up the nuts that will secure the glass tubing


and after some clean-up with a wire wheel in the dremel, put all together, and put it in place.  will work better once the tubing is there!


and that's it for now!

cheers, Joe




Offline Jasonb

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Re: Joe's 1" Minne TE
« Reply #37 on: February 16, 2015, 07:48:41 AM »
Looking good, you may find you need to use a larger hole than the No12 for the glass as most is now metric at 5mm rather than 3/16" incase you are wondering why it won't fit.

Offline ths

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Re: Joe's 1" Minne TE
« Reply #38 on: February 16, 2015, 10:29:08 AM »
Great work Jo, and I'm sure that the drill depth gauge is fairly universal. Hugh.

Offline joe d

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Re: Joe's 1" Minne TE
« Reply #39 on: February 16, 2015, 11:31:06 PM »
Jason:

Thanks for looking in, and for the "Heads Up", I'll keep it in mind.

Hugh:

I bet you're right, why else would they sell depth stop by the roll?

Cheers, Joe

Offline joe d

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Re: Joe's 1" Minne TE
« Reply #40 on: February 19, 2015, 05:34:26 PM »
Moving along,

got the fire door done;
started by silver soldering a bit of round stock to some left over hornplate, some filing, and there it is, a hinge part


the catch for the latch is just a little piece of flatbar drilled and threaded on the back for an off-cut of a 7BA screw that then screws into the
bushing on the boiler.  In the it's better to be lucky than good mode, the thing ended up vertical with no fussing about needed with
the point of thread engagement...


The actual door is also a bit of round soldered onto a piece of leftover hornplate, some filing here and there, rivet on the latch bar,
file up the keeper/guide and rivet it on and here it is


and here it is where it lives:


Still have to make the "real" hinge pin to replace the temporary one, and add the chain to the latch handle.  Two more things on the
"little details" list....

So, onwards and upwards with a lot of repetitive stuff now, making 70+ strakes and a bunch of spokes to start assembling the rear
wheels.

Joe

Offline Roger B

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Re: Joe's 1" Minne TE
« Reply #41 on: February 19, 2015, 06:11:27 PM »
Looking good  :praise2: I'm enjoying the build  :ThumbsUp:
Best regards

Roger

Offline joe d

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Re: Joe's 1" Minne TE
« Reply #42 on: February 20, 2015, 03:01:53 AM »
Cheers, Roger, thanks for looking in!

Offline 90LX_Notch

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Re: Joe's 1" Minne TE
« Reply #43 on: February 20, 2015, 03:24:55 AM »
Very nice Joe. I'm following along.

-Bob
Proud Member of MEM

My Engine Videos on YouTube-
http://www.youtube.com/user/Notch90usa/videos

Offline metalmad

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Re: Joe's 1" Minne TE
« Reply #44 on: February 20, 2015, 04:41:52 AM »
Hi Joe
What a great project.
Love it!
Pete
A little bit every day, sometimes the same little bit