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Thread: GNR Stirling Locomotive
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1st January 2017, 09:10 AM #61GOLD MEMBER
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Have a Happy New Year
PS - Trev and I are good mates - he's in that little island just below the Australian mainland. All in good fun and that's what life's about.
Have a good New Year
All the Best
Keith
PS - Maybe more photos today or tomorrow. If you want to see a bit of guys hanging it on each other - see my wifes latest quilt thread - in the Quilting Section - titled "the Ultimate Quilt"
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1st January 2017 09:10 AM # ADSGoogle Adsense Advertisement
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1st January 2017, 10:15 AM #62
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1st January 2017, 11:12 AM #63GOLD MEMBER
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3rd January 2017, 02:33 PM #64GOLD MEMBER
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Hi All,
Well I mucked up my chasis, was NOT happy with it - so a bit of rework. I have come up with something that I am happy with at the moment but as I progress maybe it will need more rework.
I have made up my axle bearings. The first photo shows the main drive wheel bearing. It slides in a groove (as do all the bearings). I have made up a leaf spring as the bearing retainer for the main drive. On the original loco there is not a leaf spring on the leading or trailing wheels - so I will just make up a standard plate as the bearing retainers on these wheels.
Have just primed everything at the moment.
The next step is to make up the axles out of aluminium so I can align the bearings and wheels on both sides of the loco before putting in and securing the chasis bulkheads. The good thing is that I can remove the wheel/bearing/axle assembly once the bulkheads/cross members are secured.
The only downer is that I only have enough aluminium shaft to make up 3 axles and my aluminium supplier doesn't return from Christmas break until next Monday. I reckon 3 axles should be enough for alignment though. So it's onto the metal lathe after I make up the leading and trailing wheel bearing retainers.
Regards
Keith
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3rd January 2017, 02:48 PM #65
Now this is a turn up for the books both the artisans, Trevor & Keith have had "opps" moments in the past day....
2017 hasn't started well or maybe it has with the corrections and reworks picked up and fixed early.....
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3rd January 2017, 03:15 PM #66GOLD MEMBER
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Peter,
Muckups are opportunities for improvement. (that's what I used to say at work)
Regards
Keith
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5th January 2017, 05:31 AM #67
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5th January 2017, 09:07 AM #68GOLD MEMBER
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Thanks Derek,
I love it.
I really like the counterweight method they use for keeping the plate level as it is inserted into the annealing furnace. I have only looked at the first 6 minutes so far. I am very impressed
Thanks
Keith
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5th January 2017, 09:04 PM #69
Derek,
Thank you for the video. It is sad that they don't quiet make them like that any more. A lot of the skills are dying, and just as important a lot of the machinery has been decommissioned and scrapped.
As is quiet normal for images of that era, there is little in the way of sight and hearing protection. Any wonder there was a lot of industrial deafness. But, were they not fit, particularly the blacksmiths swinging their hammers.
Hopefully the video will provide inspiration for Keith and others. I will go to Puffing Billy and watch them rebuild a Garratt.
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6th January 2017, 09:10 AM #70GOLD MEMBER
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Watched the entire video - gave tips on assembly that I can follow on the assembly of my locomotive - thanks Derek.
I enlarged to full screen and the plans indicate this was commenced manufacture in August 1935. Interesting to see the pouring of the castings with no PPE and the Supervisor getting up close and personal in his suit. How things have changed.
A top YouTube video that I save to my favourites
Thanks
Keith
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6th January 2017, 09:51 AM #71
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6th January 2017, 10:36 AM #72GOLD MEMBER
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6th January 2017, 02:05 PM #73GOLD MEMBER
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Hi All,
I have been making the main axles for the Stirling. I have turned them out of 25mm aluminium. The photo shows turning the bearing and wheel section of the shaft. They are both sliding fits to the bearing and the wheel bore. I have also completed the bearing retainers for the bases of each bearing. You can probably see it at the rear of the chasis in the second photo.
I have run out of stock of aluminium so can't finish off the 4th axle until after the supplier of material returns from holidays on Monday. I won't be inserting the cross members of the chasis until I get all the axles in position and everything truly aligned, although I am really happy that at this stage my calculations on bearing centres appears OK and that the chasis is running parallel to base of all the wheels.
Whilst waiting to get the aluminium - I will be starting to get my head around making the main drive wheel brake assemblies.
Regards
Keith
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8th January 2017, 03:15 PM #74GOLD MEMBER
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Hi All,
I have been working on the design of the main drive wheel brakes. I think I have said it before, but this build is a fair bit more interesting because only working off a few photos and some YouTube videos I have found for the Stirling. I have used a bit of "artistic licence" on my design to make it look the best it can. The assembly also links to the brakes on the rear trailing wheels - my next step.
The brake shoe has been made of pine. The bottom pull rod is 4mm round Mild Steel. I have threaded it on the end so I can secure it with 4mm locknuts. The linkage is aluminium and the brake shoe is connected with a 4mm setscrew and nut. The main hub at the top is aluminium - flange 25mm and the turned down section is 10mm. I have tapped the thread in the end 5mm to secure the brake. The whole assembly is secured to the chasis by 4mm setscrews and nuts. I am making all components removable (thanks for suggestion Trev) so everything can be dismantled for painting in the future. Will need to keep a bit of a record where everything goes (not mix up left and right hand). You will notice I have not primed the inside yet. That won't occur until I secure the main cross members.
Regards
Keith
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8th January 2017, 09:19 PM #75
"Artistic Licence" I like the sound of that!.
Looking Fantastic mate.
Let the good times roll.
Cheers
Trev.
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