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21st April 2016, 07:55 PM #46GOLD MEMBER
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25th April 2016, 04:44 PM #47GOLD MEMBER
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Hi All,
Well I haven't been slacking and not working on the carriage since the 21st. I have been working on the plummer block support bearings for the bogie wheels. It has taken a fair bit of thought on how to make them. I have thrown about 4 away. I need to make up 8.
I have now made up all the main top and bottom bearing blanks and have put 2 together with the amount of detail I wanted and then painted the two.
The top section of the bearing was turned on the wood lathe (45mm OD) and then drilled to with 5mm from the end with a forstner bit (sliding fit on the shaft). I then Cut longitudinally so I had the top half of the bearing. I then made the base section out of glued together rectangular pine. Again drilled with forstner bit and cut longitudinally through the drilling. This gave me my base of the bearing. Had to work each part and number and pair them up so they are all sliding fits on any of the shafts.
The screw lugs are made of pine -10 mm X 10mm square - 50mm long - what a pain drilling. Had to make up a special V block jig to hold each one - but still the drill "wandered"with the grain so it wasn't central at the base of the drilled block. I threw out about 30 of these. Ended up drilling half way and then turning up the other way and drill from the other end - worked great.
Each lug is hand sanded to give the rounded edge.
Two are complete - Six more to go.
Trev - I covered up the lathe in the background - just for you
All the Best
Keith
bogie bearings.jpg plummer base.jpg
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25th April 2016, 04:56 PM #48
Hi Keith, spectacular progress!
Just got back, there were only 3 Halifax old boys in Sydney this year.
flettya rock is an obsolete tool ......... until you don’t have a hammer!
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25th April 2016, 05:01 PM #49
Keith, funnily enough I would call them axle boxes because they go on the end of the axles.
I see you have included the axle box filler for the red oil - and yes it used to be red. Vehicles would be oiled on a regular cycle either on date or what train they were going on. The oiling date being chalked on the under frame. (Something else for you to include Keith.)
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25th April 2016, 06:20 PM #50GOLD MEMBER
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25th April 2016, 06:48 PM #51
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25th April 2016, 07:42 PM #52
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25th April 2016, 09:35 PM #53
Nice drilling work on the lathe. No good having it if you don't use it. If you had a chuck with small jaws you may not have had to throw so many of the screw lugs away as the drill will tend to go straighter if the wood is turning rather than the drill. (Sorry Trev, have to support my turning buddy)
All the hard work is paying off, looks great.
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26th April 2016, 05:45 PM #54GOLD MEMBER
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No work on model carriage today. I have joined Steam Preservation Society at Queenscliff. First milling machine operations in 40years + (since apprentice). Worked on components for a Garratt that is being restored. Top Stuff
Regards
Keith
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26th April 2016, 07:10 PM #55
That will keep you busy.
I have had a few shifts on a Garratt. Beautiful engine to ride on compared to the tank engines, but a pain to clean down - two engine units plus boiler cradle.
If you thought your bogies had repetition of parts I am sure the Garratt will have you seeing more than double.
Out of curiosity which Garratt are you working on?
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26th April 2016, 07:42 PM #56GOLD MEMBER
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26th April 2016, 09:20 PM #57
That narrows it down to two.
No 2 is a 2-6-0+0-6-2 which was in the Puffing Billy Museum at Menzies Creek or
No 3, previously G 33, an Australian Standard Garratt that was in the ARHS museum at North Willamstown with your D4. Wheel arrangement 4-8-2 + 2-8-4. Just think, if you were to model this there are only 28 wheels and axle boxes to make. Sooner or later, if made operable, someone will get the job of filling the axle boxes with oil, all twenty eight of them.
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26th April 2016, 09:54 PM #58
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26th April 2016, 11:15 PM #59
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26th April 2016, 11:46 PM #60GOLD MEMBER
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