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Post by gall335i on Feb 17, 2016 22:48:49 GMT
Been slowly working non some off-the-wall 9F bits recently whilst working on other drawings and projects for people. I've managed to machine up the 12 Tender spring hanger brackets and the 4 Buffer stock castings. Also managed to make a start on the Tender Horn guides, this was from a modified Ian Matthews LMS horn guide. Machined and as supplied. Also been updating the AutoCAD model of the loco/tender. Tonight I set up the first tender wheel in the lathe for machining so more pics to come soon. Andrew.
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Post by gall335i on Feb 18, 2016 23:40:42 GMT
Tender horn guide. Phase 1 machining complete. Andrew.
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Post by Jim on Feb 19, 2016 4:36:18 GMT
A 9F now that would be a great model to see. You're doing a great job there Andrew and I for one am looking forward to your updates and photos.
Cheers Jim
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Post by gall335i on Feb 19, 2016 16:20:09 GMT
Hi Jim, Thank you too the great comment, a 9F why not, might as well go big! Lol. Little Bit more done on the drawing, Thanks Andrew.
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Post by gall335i on Apr 14, 2016 18:58:58 GMT
Been plodding on with the build, Folded up the lower stretchers which are now fitted. Tender steps, 3/64" copper rivets, all 312 of them. Steps fitted to tender. Managed to get the loco brake hanger brackets made up, just little gusset to go on top and there done. 6 of the 12 tender horn guides are fully machined and fitted, temp bolted! Overall view so far!! More to come soon, been back at the laptop drawing up more!! Andrew.
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Post by Jim on Apr 14, 2016 19:37:43 GMT
The loco looks fantastic Andrew and very impressed with your attention to detail.The dimpled safety tread for the steps has set me thinking about reworking mine which is a bit iffy Jim
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Post by a1pepper on May 19, 2016 10:01:43 GMT
This is so good to see! Wow!!
If we want to see model steam engines in the future then they've got to be easier to make if you people are going to be encouraged into the hobby, and the skills you used to need just sent taught anymore.
You should sell the IP in your design work and cnc files to reward you for your excellent work and also encourage others to follow suit and create businesses that provide greater support to the model eng community.
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Post by Doug on May 19, 2016 13:40:58 GMT
This is so good to see! Wow!! If we want to see model steam engines in the future then they've got to be easier to make if you people are going to be encouraged into the hobby, and the skills you used to need just sent taught anymore. You should sell the IP in your design work and cnc files to reward you for your excellent work and also encourage others to follow suit and create businesses that provide greater support to the model eng community. Hi a1pepper I would most definitely disagree with most of that, I am 43 and use "modern" methods where i can and traditional machining where i cant, i have a lathe from 1940. Unless you buy a kit of parts, it is actually much harder to use CNC you need to completely understand and be able to machine manually BEFORE you even start to think about getting a computer to do the donkey work this is something that is not apparent to most. Oddly even a working CNC program will not usually "travel well" between machine types so it’s almost always a one hit wonder. there are quite a few model engineers that are pre-retirement age but i can tell you from experience that unless you are very lucky balancing work, life and a time hungry hobby like model engineering is very difficult which is why most are not heavily into the hobby. I work in the Aerospace sector and i can tell you despite what you hear the engineering community in this country is heathy and the basic fitting skills are still taught and used. I hope you dont see my post in a negative way, i just hope to reassure you from another perspective that it is not "easy" or that engineering or model engineering are diying out because it is simply not true, its just changing. I love this model build as it shows yet another method of construction and a very highly skilled build. keep up the great work and keep the photo's comming!!! all the best Doug
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Post by gall335i on Jul 31, 2016 21:17:20 GMT
Hi guys, Been a while since I posted! I have been doing some work on it. Tender wheels now machined and pressed into the CNC'd axles. Just need to clean up the spokes as I got a little ahead of myself! Haha. Also made up the loco and tender draw bar and pins, 1/2" en16 pins should be plenty strong enough for the large loads I'm expecting it to pull! A few shots of how it sits in my 10'x8' shed/workshop! Think I need a bigger one shed!! In the process of maching up the tender axleboxes and horn pads and trying to get hold of a set of drivers for it!! More to come. Andrew.
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Post by simplyloco on Jul 31, 2016 22:21:37 GMT
Looks wonderful, but I agree with you that a bigger shed might be a good thing! John
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Post by springcrocus on Jul 31, 2016 23:18:52 GMT
Looks wonderful, but I agree with you that a bigger shed might be a good thing! John Not really, Andrew, just shift those storage boxes at the far end over a bit and you'll be able to fit the buffers. A bigger shed just means that you'll find more c**p to store in it! Nice work, keep it up. Steve
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Post by runner42 on Jul 31, 2016 23:37:40 GMT
Hi Andrew,
I am really impressed with your locomotive and that you are building in 7 1/4" gauge, but what really intrigues me is what size of lathe and milling machine you have to accommodate that gauge and how you have shoe-horned it into your shed?
Brian
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Post by gall335i on Aug 1, 2016 12:54:08 GMT
Thanks for the comments guys. Brian, It's a tight squeeze in there but I've got a Harrison L5 Lathe and large bench tip mill to use, Also have 3 bikes that go in, but they have to be moved to use the lathe! Makes working in there interesting, lol. HTH. Andrew.
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Post by runner42 on Aug 2, 2016 7:20:49 GMT
Andrew,
full marks for the bench extension to accommodate the foot print of the milling machine.
Brian
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Post by 92220 on Aug 2, 2016 8:12:12 GMT
Hi Andrew.
That's a very impressive model! You are going to have a fab loco when it's finished! I'm building a 5" gauge Evening Star to a full set of available works detail drawings (DON'T ask the cost!!)and I see that you don't appear to have the sloping front to the rear lower stretcher on the tender, that supports the water scoop. Is that a trick of the photo? If you haven't got this, if you want it, I can send you a copy of the drawing or a copy of my AutoCAD file in 5". You can then scale up to 7.1/4", if you need it. Also, the rear lower plate on the front drag box has sloping sides as well, not flat. I am just starting my tender now. I have the frames, dragboxes and stretchers done, and am just finishing the axlebox guides and liners. I couldn't get scale cast guides so have had to fabricate them. A right pain!!!!
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Post by 92220 on Aug 2, 2016 8:54:55 GMT
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Post by gall335i on Aug 2, 2016 11:16:04 GMT
Brian,
Needs must to get it in, hopefully moving next year and a decent size garage is one feature that's on the priority list!
Bob,
Thanks for the photos of your model, my lower stretcher does have the angled front but not fork parts, not really intending on fitting a scoop TBH!! This engine is gonna be worked hard, not a show engine.
Yes as you say the drag box does have angled side but I'd already drew mine up before getting the works drawing using the Jim Vass ones so just left it, there's enough clearance for the front wheels to move and you can't see it i'm leaving it be.
Andrew.
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Post by mutley on Aug 2, 2016 12:12:27 GMT
Hi Andrew. I've just taken some photos of the stretcher and front dragbox to illustrate what I was trying to describe. The main problem with the dragbox is that if you don't have the lower level at the back you are going to find your tender brake gear doesn't meet up with the cylinder linkage. Hope this helps. Nice work fabricating the drag box, the Spinks/Warnett one leaves a lot to be desired. Could you share the BR drawing number as that has me inspired to improve my 9F tender. Andy
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Post by 92220 on Aug 2, 2016 13:32:00 GMT
Hi Andy. Thanks for the kind comment. It was quite a job fabricating. There were 5 silversoldering operations before it was finished and distortion was very minor - just 0.02" from side to side. The dragbox is, as near as is physically possible, a direct miniature of the full size dragbox, and Yes, I agree with you, the Les Spinks/Warnett design is way out, as is much of the rest of the loco drawing details. You asked for the BR drawing number of the front dragbox. I have 'copy and pasted' the list of tender drawings I have and am working to, which may help. All my working drawings are done on AutoCAD and I draw everything fullsize from the BR drawings. Then I copy the fullsize drawing and scale down the copy by a factor of 0.0885 which is 1.1/16" to 12". Then I just dimension the result. Radii, hole sizes, and screw threads, are adjusted to the nearest available standard size, and those are the only differences from true scale. Hope it helps:-
SL/DE/ 22651 TENDER - Flange bracket SL/DE/ 20255 TENDER Arrangement of Brake Block & Hanger SL/DE/ 20162 Tender Axlebox Spring Pad SL/DE/ 20251 Tender Brake Adjusting Pull Rods & Nuts SL/DE/ 20252 TENDER Brake Cross Beam SL/DE/ 20253 Tender Brake Crossbeam Bridle SL/DE/ 20203 Tender Brake Hanger Bracket SL/DE/ 20254 Tender Brake Pull Rods SL/DE/ 20258 Tender Brake Release Det. And Piston Rod SL/DE/ 20230 Tender Brake Shaft SL/DE/ 20322 Tender Brake Shaft Carrier Bracket SL/DE/ 20229 Tender Brakeshaft Bearing Bracket SL/DE/ 20165 Tender Bunker Access Doors & Details SL/DE/ 20164 Tender Combined Sump and Feedvalve SL/DE/ 21619 TENDER Cross Braces SL/BR/ 1128 TENDER Drawhook SL/DE/ 20407 Tender Feedwater Hose Pipe SL/DE/ 20302 Tender Flanged Plate Stretchers SL/DE/ 20988 TENDER Flanged Stretcher and Cross Brace SL/DE/ 20811 Tender Footsteps SL/DE/ 20323 Tender Frame Angles SL/DE/ 21539 Tender Frame Arrangement SL/DE/ 21629 Tender Frame Arrangement SL/DE/ 21706 Tender Frame brace SL/DE/ 20242 Tender Frame Keep SL/DE/ 21627 tender Frame Stretcher - Hind SL/DE/ 21626 tender Frame Stretcher Front SL/DE/ 20770 Tender Front Dragbox SL/DE/ 20235 Tender Front Shaft Water Pick-up Gear SL/DE/ 20257 TENDER Handbrake & Water Pick-up handle & bevel gear SL/DE/ 20256 TENDER Handbrake & Water Pick-up Operating… SL/DE/ 20382 Tender Hind Buffer Beam SL/DE/ 21628 Tender Hind Dragbox SL/BR/ 513 TENDER Intermediate Rubbing Block SL/DE/ 20260 Tender Pick Up details SL/DE/ 20402 Tender Pipe Arrangement SL/DE/ 20177 Tender Plate Details SL/DE/ 20181 Tender Seating & Sieve for Combined Sump & Feed Valve SL/DE/ 21165 Tender Tank Arrangement SL/DE/ 20198 Tender Tank Lifting Bracket SL/DE/ 20180 Tender Tank Plate Details SL/DE/ 20187 Tender Water Pick-up Castings SL/DE/ 20259 Tender water Scoop Op. Details SL/DE/ 20075 Tender Wheel SL/DE/ 20200 Tender Window
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Post by henry9f on Aug 13, 2022 1:58:59 GMT
Great model! looking forwards the new sharw
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