Results 16 to 30 of 197
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18th October 2019, 11:11 PM #16
Missed this new one Keith (puter went belly up then I went OS} Im in for the ride too
The person who never made a mistake never made anything
Cheers
Ray
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18th October 2019 11:11 PM # ADSGoogle Adsense Advertisement
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5th November 2019, 04:06 PM #17GOLD MEMBER
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Hi All,
I have been working on the front bogie wheels - these were turned in the wood lathe out of pine.
I then sketched up and have started to build the sub chasis of the locomotive. This is made from 9mm MDF and pine. I have also made up the wheel bearings and reatainers. These slide into the cutout sections of the chasis.
The second photo shows the wheel configuration on the front end of the locomotive.
My next step will be turning up the axles for the front bogie wheels and also the main drive wheels. The axles will be turned out of 25mm solid aluminium in my metal lathe.
There are also 8 sets of leaf springs for the wheels to be made. So plenty of work to keep me going.
Regards
Keith
43.jpg 44.jpg
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6th November 2019, 05:21 AM #18
Very interesting and looks like a lot a work. [FUN]
An Index Of My Model making Blogs on Lumber Jocks.
http://lumberjocks.com/htl/blog/116729
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6th November 2019, 09:10 AM #19GOLD MEMBER
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6th November 2019, 05:04 PM #20GOLD MEMBER
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Hi All,
Started turning up the axles of my locomotive.
My design has the axle made out of 25mm aluminium round. The main bearings are 7/8 inch bore and the the bore of each wheel is 3/4 inch. The bores of the bearings and wheels were cut with forstner bits as they give a good quality bore.
Because I have so many axles to machine up - I made up a gauge that allows me to create a sliding fit on the bearing and an interference fit on the bore of the wheel. It's pretty rough - but it works.
45.jpg
I machine up and measure using a vernier to get a diameter close to what I want.
46.jpg
I then use my gauge to get the sliding or interference fit that I want.
47.jpg 48.jpg
The gauge makes it much easier than having to remove the work from the chuck or take measurements with the vernier.
49.jpg progress so far.
Regards
Keith
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7th November 2019, 03:58 PM #21GOLD MEMBER
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Hi All,
Finished my axles and also made my first set of leaf springs for the front bogie.
Regards
Keith
50.jpg
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9th November 2019, 05:32 PM #22Senior Member
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Thanks Master Keith !
I can use that gauge on my automata work !
Regards,
Gus
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14th November 2019, 03:35 PM #23GOLD MEMBER
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Hi All,
I have started to make the main drive cylinders for this loco. I found that if I didn't make them and then position them on the chasis - then I won't be able to work out the position of the boiler accurately.
The cylinders in the photo show the piston shaft end and the back end of the cylinder.
The caps I have made out of MDF. The gland is turned out of aluminium and is a press fit into the end cap. The cylinder is PVC pipe. I have made internal spigots on the caps to ensure the caps locate centrally on the cylinder.
I have also made up the leaf springs for each wheel (once assembled you won't be able to see much the springs as they will be obscured by other components).
Regards
Keith
51.jpg
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19th November 2019, 03:02 PM #24GOLD MEMBER
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Hi All,
I have been working on the bracket that will secure the cylinders to the chasis.
I cut out 8 pieces of 19mm thick pine to the outside diameter of the cylinder and then sanded to the size using a spindle sander. I then glued and clamped 4 pieces together (4 pieces for each side) Then finished sanding the bore. These form my cylinder brackets. They will be bolted from the inside of the cylinder to the chasis.
52.jpg
I have clamped the cylinders in there approximate position to check alignment etc.
Beside my version of the loco is a photo of the original locomotive I am working to. Unfortunately I have limited photos of this locomotive.
53.jpg 54.jpg
Regards
Keith
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3rd December 2019, 01:34 AM #25
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4th December 2019, 03:11 PM #26GOLD MEMBER
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Hi All,
Slow work on the loco. Bowls is a pretty big time consumer.
I have been trying to figure out how to do the change in boiler diameter on this loco
55.jpg
I have split the PVC pipe and inserted MDF to bring the PVC pipe out to the correct diameter scale for this loco (went from 160 OD pipe to 180mm for the correct scaling.)
56.jpg
To get the change in diameter of the boiler - I found an old rubbish bin which had a metal outer skin that was the exact diameter I wanted. I removed the bin internal and cut off the rounded lip. I have now cut pine inserts to fit all around. I will cut and taper these and then insert between the boiler and outer skin. These will then be sanded down and the covered in bodyfiller. Lot of filing and sanding to come.
57.jpg 58.jpg 55.jpg
Regards
Keith
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4th December 2019, 09:08 PM #27
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5th December 2019, 06:27 PM #28GOLD MEMBER
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5th December 2019, 07:42 PM #29
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6th December 2019, 09:02 AM #30
Keith from the looks of the second picture down [in your last post] it looks oval and not round is this a trick of the camera, this would make for a tricker turning?
An Index Of My Model making Blogs on Lumber Jocks.
http://lumberjocks.com/htl/blog/116729
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