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Thread: Rob Roy
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2nd February 2022, 09:10 AM #31GOLD MEMBER
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Hi Derek.
Great news about your health.
I am sure you will do a top job on machining the wheels. You have an excellent looking metal lathe.
Your work is spot on - Congratulations
Regards
Keith
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2nd February 2022 09:10 AM # ADSGoogle Adsense Advertisement
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2nd February 2022, 09:19 PM #32
No doubt you have watched some videos on model making.
You might want to have a look at "Keith Appleton" and here are a couple of links which may be of use. HOW TO MACHINE A STEAM ENGINE CYLINDER - MODEL ENGINEERING FOR BEGINNERS #5 - YouTube & HOW TO MACHINE A MODEL STEAM LOCOMOTIVE WHEEL - MODEL ENGINEERING FOR BEGINNERS - PART #14 - YouTube
There may be times when you spend an hour just on set up, but just a minute on machining. Be patient. It is not a wooden toy but a working machine you are making.
Watching with interest.
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2nd February 2022, 09:58 PM #33
Yes I do watch Keith as well as a few well known makers. Even the wooden models can take time to set up especially if a jig is needed but I don't mind spending time setting up if the end result is what it should be, I will not say perfect as I am sure I will get something wrong and not notice but I will try to aim for that
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3rd February 2022, 04:50 AM #34
Started late in the workshop today a quick visit to the opticians to sort out new glasses.
Anyway I managed to mill to size a spacer block no photo just a plain rectangle of steel. Then started on the hornblocks by cleaning one surface as a reference.
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8th February 2022, 06:17 AM #35
Just the inside of the horn block to machine and the rear to fit the frames.
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I did stop for a play which I can do as one is on the mill and the buffer is on the lathe. So I started on the buffers well got as far as making one and managed to chip the insert will try again tomorrow to see if I can clean it up without removing too much metal. You can see where the insert broke by the finish on the outside was not sure if it was my fault so must take a little more care if it was.
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11th February 2022, 06:25 AM #36
I scrapped the first buffer as I was not happy with the finish. So the last couple of days I set about making 4 of them. I know this is a little jump from the main chassis but there is a reason and that being I would rather get these wrong before working on the axles.
I would rather practice on a less important part and have to remake that, still learning a lot but that is what it is about.
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14th February 2022, 04:12 AM #37
More work on the buffer assembly I managed to turn all the outside of the stocks and then reverse one of them and drilled a small through hole and opened up a section for the buffer to fit into. Still need to drill the other three.
The completed stock on the left with the buffer on the right
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Slide together I still need to make the springs the front and rear spring are different strengths as well as some nuts to hold them in place
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The buffer beam with the buffer assembly just pushed into place
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16th February 2022, 02:32 AM #38
All four of the buffer assemblies turned just need to wait for some spring wire and some 5BA nuts so I can fix the stocks to the buffer.
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16th February 2022, 09:20 AM #39GOLD MEMBER
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Derek,
The buffer assemblies have come up great. You must be pleased.
Regards
Keith
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17th February 2022, 12:33 AM #40
Yes I am pleased, I just hope the rest goes as well.
Oh nuts well that is what has been happening today, what do you do when you don't have the right size or thread nuts well you make some naturally. So that is what I managed today after I had done some work in the greenhouse which was nice and warm. Then sorted the rubbish bin area before I went and hid in the workshop.
So 4 nuts the first photos are half way through making them and the last ones complete and one fitted to the buffer assembly.
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17th February 2022, 08:24 AM #41
Next level engineering!
Love it Derek that you’re showing your craftsmanship.
Cheers Peter
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17th February 2022, 02:42 PM #42GOLD MEMBER
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Hi Derek,
Is it Metric or Imperial. I find that it's easy to get metric taps and dies but almost impossible to get imperial tap and die sets.
Coming up great.
Regards
Keith
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17th February 2022, 08:39 PM #43
They are ME threads 5/16" X 32. which we can get here quite easily I am very fortunate that I have UNC, UNF, Metric, BA, pipe thread and some whitworth and possibly some obscure ones if I looked most are from my days as a plant mechanic.
I only have a small collection
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17th February 2022, 09:13 PM #44
Wow Derek, Your well setup.
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27th February 2022, 03:48 AM #45
I have not been idol over the last week I have replaced some greenhouse glass which we lost in the high winds last Friday these lasted for nearly a week Friday being the worst day.
Then Tuesday I started by doing the glass followed by digging the veggie patch and sowing seed in the greenhouse. This did follow a theme as I did this every morning but the afternoons I was free to play in the workshop which meant that I was able to do the odd bit to the loco.
An added extra I did manage to cook my dear wife a meal today which is a normal thing on a Saturday.
I started with drilling 4 holes in the ends of the cross members this was a total of 16 holes then threading them 6BA which is quite small the tapping drill size is 2.35mm so a very slow process not wanting to snap either the drill bit or tap in a hole.
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Then it was a simple job of cutting and machining some angle iron so that the buffer beams can be attached to the main frames these still need drilling for some iron rivets
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And I even found time to prepare some wood for tiny bird houses which I will show when complete in the woodturning section
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