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Post by simplyloco on Aug 24, 2017 16:56:02 GMT
This is what model engineers make when they've had enough of pfaffing around with M1.2 bolts on a locomotive ...  Two weeks work so far and I might even see it finished next month!  DSC00083 by inkaboat, on Flickr  DSC00085 by inkaboat, on Flickr |
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Post by simplyloco on Aug 29, 2017 7:16:31 GMT
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Post by simplyloco on Oct 28, 2017 15:49:36 GMT
Nearly Finished!I've been away in France for a month, so there was some catching up to do this week. The eccentric and strap is just about the most fiddly part on the thing! When I made the strap I didn't notice the raised ring on the eccentric which keeps the strap in place. I had to remount the strap in the four jaw and machine the groove: it is too easy to over tighten the strap body and distort it! A few bits of valve gear to do, fettle the bearings, bolt it together and paint it and the job's done by Christmas! That's the theory anyway... :hellno:  DSC00094 by inkaboat, on Flickr If you look closely you can see where the component flew out of the chuck when I was being heavy handed machining the eccentric! I fixxed it but its a little undersize now...  DSC00086 by inkaboat, on Flickr  DSC00092 by inkaboat, on Flickr End view.  DSC00095 by inkaboat, on Flickr
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Post by Donald G on Oct 30, 2017 9:06:28 GMT
Can you please tell me which of the Stuart kits that is please? Now the Std 2 tank is finished I am looking at a Beam engine and would like to make one that can sit on a cupboard and have either a mini compressor or small electric motor turning it over very slowly.
Thanks
Donald
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Post by simplyloco on Oct 30, 2017 9:11:12 GMT
Can you please tell me which of the Stuart kits that is please? Now the Std 2 tank is finished I am looking at a Beam engine and would like to make one that can sit on a cupboard and have either a mini compressor or small electric motor turning it over very slowly. Thanks Donald Hi Donald. It is this one: www.stuartmodels.com/item/43/stuart-beam-unmachinedI didn't pay £300 for it though. One of our members had a clearout and I bought it for 100 quid! John |
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Post by Donald G on Oct 30, 2017 12:02:38 GMT
Hi John , thanks very much for that, I will keep my eyes open to see if I can pick one up from somewhere
Donald
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Post by simplyloco on Nov 17, 2017 17:19:10 GMT
We have parallel motion! The bearing blocks are a bit loose as they are waiting for posh studs, but I'm well pleased that it works. There won't be any ghastly nuts in sight: dummy cotter pins will rule OK! Click on the picture for the action video! John  00001 by inkaboat, on Flickr |
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Post by simplyloco on Dec 5, 2017 0:51:31 GMT
I've been quietly busying myself with my beam engine, and have reached the stage where final assembly is in sight! It is now painted, and I'm working on the all important detail. Studs, for example, posted on the MEM site today. Studding made easy! After mucking about attempting to get all the studs at the correct height I hit upon a short cut. I'm sure it's been done before, but I domed the nut and stud in the lathe, applied Loctite retaining compound, and turned the nut back one thread and waited for the resultant set. The result is shown below. The stud was screwed in making sure that there was sufficient bottom clearance. Simples!  WP_20171204_18_30_13_Pro[1] by inkaboat, on Flickr Stud Heaven: all exactly the same height! :whoohoo:  WP_20171204_18_04_17_Pro[1] by inkaboat, on Flickr |
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Post by Donald G on Dec 6, 2017 8:32:46 GMT
John
I am impressed with your pictures of the progress with the beam engine.
As you may have seen I have decided to build the Galloway Non Dead Centre Engine, something totally different and I think requiring a lot more work. You idea of gluing the nuts to threaded rod is brilliant, I was going to go down the track of hexagon bar, thread it for the fitting side, and at the head end, just turn down a very short stub , the diameter of the stud. I think your method has to be easier and quicker than all the machining required the other way.
Thanks for the tip,
Donald
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Post by simplyloco on Dec 8, 2017 19:17:28 GMT
Motorised instead of using compressed air.I'm using a cheap 6v servo converted to continuous rotation powered directly from a R/C rechargeable battery from my IOM racer. It's a bit noisy but I can live with that! I'll make a mock generator cover for the servo labelled 'High Voltage'! The links are missing as I'm not happy with the ones that I made. Something a little more fancy is required! Quite pleased... Click on picture to see it run. Thanks for looking. John  00004 by inkaboat, on Flickr
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Post by districtgrandmaster on Sept 5, 2018 10:54:05 GMT
Congratulations on this John. My father bought me a set of Stuart Beam Engine casting back in the 1960's! I had made him a V10 from the book that cost me 4/- (does anyone recognize that denomination!)
There were no 'Words and Music' for the Beam Engine bank then but I enrolled in the local evening class and they guided me through the project (God Bless Them). At the end it actually ran on compressed air and everyone was delighted.
It was the start of my interest and right now I'm doing the Allchin Traction engine following Bill Hughes book (that I bought for £2.50 back in the '70's!)
CEW
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Post by simplyloco on Sept 5, 2018 13:02:24 GMT
Congratulations on this John. My father bought me a set of Stuart Beam Engine casting back in the 1960's! I had made him a V10 from the book that cost me 4/- (does anyone recognize that denomination!) There were no 'Words and Music' for the Beam Engine bank then but I enrolled in the local evening class and they guided me through the project (God Bless Them). At the end it actually ran on compressed air and everyone was delighted. It was the start of my interest and right now I'm doing the Allchin Traction engine following Bill Hughes book (that I bought for £2.50 back in the '70's!) CEW At last! Someone else who's interested in something other than little locos! Good to hear from you. John |
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Post by Donald G on Sept 8, 2018 18:37:27 GMT
Congratulations John
That is certainly a clever way of making the drive motor look like a generator. With my Galloway engine, I am thinking of hiding a small electric motor under the base and put a rubber tyred wheel running on the large flywheel.
I look forward to see it with the new rods and the dummy generator on, I am certain it will look great.
Keep up the good work
Donald
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