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Post by Callum Darraugh on Feb 9, 2013 20:03:10 GMT
Hello all! I've made the decision (right or not!) to start the build of a LNER Y4 to the Doug Hewson drawings. This is my first loco build, so please forgive me if I ask some questions that would be quite simple for others! I'm a total beginner, so bear with me  The main frames and stretchers arrived yesterday from Malcolm High of Model Engineers Laser. Hopefully, I will get round to drilling and assembling them in the next week.  Kind regards Callum D |
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Post by Jim on Feb 9, 2013 20:23:22 GMT
Welcome to the hobby Callum! You've made a good start on what will be a great journey towards having a working steam locomotive. Don't worry either about asking questions it's the way to learn as you go and you'll find there's usually someone here who can offer an answer or at least a helpful suggestion. Look forward to following your progress on the Y4.  Jim |
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Post by Deleted on Feb 9, 2013 20:29:29 GMT
Hi Callum Congrats on starting your first loco and a good choice to.. well it's LNER so that makes it special.. to me at least. BTW I'm very jealous. I noticed your location in your avatar.... a truly beautiful part of the world, I've been there many times, last was two years ago.. fantastic views.... Pete |
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Post by Shawki Shlemon on Feb 10, 2013 9:21:50 GMT
Hi Callum
Welcome to the forum, a journey of 1000 miles starts with one step , that you have done , congratulation ,I see from your photo that you are a young person and therefore I assume your free time will be less than us pensioners ;D .Remember the most important thing in this game is progress NOT how big or small but just progress .Enjoy the journey and destination will come in due course .I don't know much about this particular engine but I am sure on this forum you will get some answers or advice .Good luck .
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Post by Callum Darraugh on Feb 10, 2013 18:46:34 GMT
Thank you for the kind words. I'm using the works ( www.conwyrailwaymuseum.co.uk ) equipment at the moment to build it, but I am hoping to have my own workshop set up at home soon. I already have 2 x 7 1/4" gauge locos, but I didn't build them.  Hopefully I can crack on this week! Regards Callum |
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Post by Callum Darraugh on Feb 26, 2013 17:14:48 GMT
Hello all,
Is there anybody on here that is building or has built this loco in the past from Doug Hewson drawings? I'm having difficulty finding the hole sizes for drilling the frames.
Regards
Callum
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Post by caseyjones82 on Feb 27, 2013 5:44:38 GMT
The Doug Hewson version of the Y4, as you have stated you are building is currently being described in Engineering in Miniature. Might be well worth picking up copies as Doug's articles are aimed at the beginner.
Cheers,
Alex
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Post by ejparrott on Feb 27, 2013 9:11:42 GMT
I've got most of a frame set made up...it was serialised in EIM about 20 years ago....not too sure why it's being re run
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Post by caseyjones82 on Feb 27, 2013 10:34:39 GMT
I believe when it was serialised 20 years ago, it was under the "Blackwall" design. From what I can gather the only differences are cosmetics in the form of detailing improvements Alex Construction described by Doug Hewson in Engineering in Miniature where it was known as "BLACKWALL" The 5" gauge version has been considerably refined since the original design was produced to bring it much closer to scale without sacrificing either strength of construction or power of the locomotive. |
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Post by ejparrott on Feb 27, 2013 13:21:36 GMT
It was, and I'm a bit suprised that 'cosmetic' alterations require a complete re-run of the series....
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smallbrother
Elder Statesman
Errors aplenty, progress slow, but progress nonetheless!
Posts: 2,269
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Post by smallbrother on Feb 27, 2013 19:47:07 GMT
Callum,
Isn't the easiest option with any queries to speak to Doug Hewson?
Pete.
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Post by Callum Darraugh on Feb 28, 2013 10:35:35 GMT
Thanks for your replies. smallbrother - That is easier said than done... I think I might have a better chance of A.J.Hill himself picking up the phone or answering an email!
I've got all the current EIM issues with the build in, but it doesn't state the sizes that I need. All the hole sizes have to be calculated from other drawings sheets for what attaches to the frames. As he is describing it as a "beginners loco", I'm finding it exceedingly difficult!
Regards
Callum D
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Post by ejparrott on Feb 28, 2013 13:24:42 GMT
Mike usually answers his email after a day or two.
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Post by caseyjones82 on Feb 28, 2013 19:33:43 GMT
I am built a couple of thinks to Hewson drawings. His drawings seem to lack a lot of hole size detail on quite a few of the components. I can only assume so you will also buy his laser cut items?
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Post by ejparrott on Feb 28, 2013 21:00:41 GMT
Laser cut parts won't help tell you what size a drilled hole is meant to be.....
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Post by caseyjones82 on Mar 1, 2013 4:56:08 GMT
Of coarse not, but if the holes have already been cut then it defeats the purpose of finding out what size you need to drill them....... Of coarse if the holes have only been spotted and not cut to size then you are still at square one. Common Sense prevails!
Besides, this banter does not help Callum out. Drop Mike Hewson an email and it usually doesn't take him any longer than a week or so to reply. That has been the case for me anyway.
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Post by ejparrott on Mar 3, 2013 8:45:02 GMT
I can't find my Y4 drawings at the moment, I thought they were here but I've either put them away safe or they are still at my mothers. What holes are you after? I may be able to measure them off my frames, which I bought from Doug many years ago.
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Post by peter99 on Nov 9, 2013 11:12:13 GMT
It was, and I'm a bit suprised that 'cosmetic' alterations require a complete re-run of the series.... I am (still) building from the original 'Blackwall' drawings. It definitely required a re-run of the drawings which showed some errors (silly some of them) and some items missed out completely. The most difficult items I am finding is constructing the tanks and cab, which are skated over. Doug Hewson does go into detail, that's just what a beginner needs. 'Cosmetic' alterations? The drawings needed more than that. A re-run was needed. |
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Post by donashton on Nov 9, 2013 12:19:29 GMT
In building 4709(full size)I specified around 200 holes to be accurately drilled in the mainframes during the machining. Many of these are spotted through once the component is made (say a frame stay)but where a cast component is machined with holes (like the horn blocks)these are spotted through from the component after clamping and checking its position. This allows a little flexibility when aligning everything. I recognise that in an ideal world.....but I've learned from the mistakes of others! Too many MEs stick a piece of angle at each frame end and glory at their advancement, only much later wondering why the coupling rods won't revolve!
Don.
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Post by Deleted on Nov 9, 2013 12:38:37 GMT
In building 4709(full size)I specified around 200 holes to be accurately drilled in the mainframes during the machining. Many of these are spotted through once the component is made (say a frame stay)but where a cast component is machined with holes (like the horn blocks)these are spotted through from the component after clamping and checking its position. This allows a little flexibility when aligning everything. I recognise that in an ideal world.....but I've learned from the mistakes of others! Too many MEs stick a piece of angle at each frame end and glory at their advancement, only much later wondering why the coupling rods won't revolve! Don. Hi Don That's exactly how I built 4472's tender chassis, it was obvious to my way of thinking that to drill all holes in the frames to drawing would be a mistake. I studied the drawing and worked out in my mind which holes should be left until the corresponding parts had been machined. The drag and draw beams were done following the drawing as these are relatively easy to align but I did the horns the same as you have mentioned here, clamped in place and transferred the hole positions directly to the frames. I'll do the same with the loco frames which I suspect may require a lot of studying first with so many holes in them... Pete |
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