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Search results for: Andrew's
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... stop the twitch. Phil Did you connect the foil to earth or just leave it disconnected? John posted: 20 Oct 2017 19:03 from: Andrew Barrowman I have not found shielding to be very effective. I think that's because the interference is mainly induced (bit like a transformer). If you do run into horrible problems with servos, all is not lost. You can "front-end" the input with an opto-isolator and that makes them pretty immune to interference. I don't want to turn Andrew's thread into a discussion about servos. PM me if you need more info. Regards, Andrew B posted: 20 Oct 2017 19:11 from: Martin Wynne Andrew Barrowman wrote: I don't want to turn Andrew's thread into a discussion about servos. Nor me. But I would simply add a pull-up resistor at the servo end. What is the sink/source capacity of the driver? regards, Martin. posted: 20 Oct 2017 21:14 from: Andrew Barrowman Martin Wynne wrote: But I ...
... even further for the benefit of all, I just wonder what is the real complaint that Andrew has here !! If being called a 'nerd' means I'm the type of person that takes there time to persevere and get things right and am never in an unnecessary rush, after all, I enjoy my hobby, and it's nice to do things at one's leisure when you are, shall we say, having fun (perhaps I am a nerd). However, I think Andrew has confused his metaphors here !! Regarding Andrew's lap top, perhaps he should have been a little more prudent in his purchase, and taken his time a little, and decided to equip it with either Wi-Fi or satellite reception so that he would have been able to use it wherever he chooses. Martin, I had respond to the allegations put by Andrew, as support for an excellent and valuable tool to the railway modellers arsenal, and to say again, thank you for a first class and very impressive software program. I doubt, Andrew will even ...
... I may use it as the basis of the video. regards, Martin. posted: 15 Jan 2015 11:49 from: Martin Wynne p.s. A further thought for all -- how does a double-track goods shed work? i.e. with road access on one side only. Presumably there must be sufficient spacing between the tracks for a narrow platform, with a movable bridge over the track to the main platform? As far as I can see having double-track at only 6ft-way (as in Andrew's latest file) through a single-sided goods shed doesn't make sense, unless I'm missing something? Do we have any pics of the prototype? Lots of Yeovil pictures here, but not the goods shed apart from photo 92: http://www.southsomerset.gov.uk/media/348971/railways_of_yeovil3.pdf I found this model picture, with a train through the goods shed but with no apparent access to the platform inside it: http://www.weymouthmra.org.uk/wp-content/uploads/2011/08/GoodsShed.jpg Andrew's original sketch ...
... and move it around etc. The template is set to display the center line only. Andy posted: 25 Jan 2016 21:39 from: Andrew Barrowman See "Geometry,- Center Lines Only" posted: posted: 25 Jan 2016 21:41 from: Gordon S Thanks Martin, I'd looked everywhere... It suddenly struck me as a very useful line when setting out the base of my retaining walls. In most cases it won't be anywhere nearly as critical as the skew bridge on ET, so perhaps Andrew's version may suffice. Just firing up 2.13 to take a look whilst my good lady is watching TV. 25 Jan 2016 21:41 from: Andrew Barrowman Ooops! Martin's post arrived while I was typing. Mind you, mine had to travel a third of the way round the World posted: 25 Jan 2016 21:44 from: Martin Wynne Andrew Barrowman wrote: Ooops! Martin's post arrived while I was typing. Mind you, mine had to travel a third of the way round the World Mine travelled further ...
... :42 from: Stephen Freeman Looks like I'll have to re-join Scaleseven posted: 3 Sep 2018 15:56 from: Rob Manchester Stephen Freeman wrote: Looks like I'll have to re-join Scaleseven It shouldn't be a requirement to be a member of a club or society to get access to parts. You can buy 4mm items from Scalefour or EMGS stands at shows without being a member. I am already a member of 5 model railway clubs or societies so not too keen to shell out for another subscription. Andrew's announcement can be read as implying that both 4mm and 7mm track items will be available direct from the source at a 10% uplift in price. If the parts are being sold on a no profit basis they will be cheaper than when Phil was selling them. Rob posted: 3 Sep 2018 16:21 from: Martin Wynne Rob Manchester wrote: It shouldn't be a requirement to be a member of a club or society to get access to parts. You can buy 4mm items from Scalefour or EMGS stands at shows ...
... wouldn't be as effective in this instance? posted: 21 May 2020 22:41 from: ikcdab that looks possible, though i dont see why ordinary slide chairs couldnt have been used? posted: 21 May 2020 22:59 from: Martin Wynne Hi Ian, Those backing rails to support the closed switch blades are standard practice on GWR switch-diamonds. Full details in David Smith's GWR track book, which I can't put my hands on just at the moment. I think there was also some discussion about this in Andrew's Yeovil layout topic. Other companies tended to use more conventional spacer blocks and block chairs. I will write some more when I have actually found the details. cheers, Martin. posted: 21 May 2020 23:19 from: Rob Manchester Martin Wynne wrote: Hi Ian, Those backing rails to support the closed switch blades are standard practice on GWR switch-diamonds. Full details in David Smith's GWR track book, which I can't put my hands on just at the moment. I think there was also some discussion ...
... to create the file. The only likely need for a CAD-style package is as a viewer for the 3D renderings, and to convert the DXF to a format suitable for 3D printing, or CNC spark-erosion electrodes, or whatever. p.s. Andy is well ahead of me. cheers, Martin. posted: 20 Nov 2018 03:33 from: DaveJ61 Hi Martin, Yes, I understood they were two different projects, both extremely interesting and I am watching them with avid interest. I didn't realise that Andrew's chairs were added to a 2d Templot export. I must have missed that bit somewhere along the way. I'll have to reread the thread. I've used Fusion360 to export an STL file for use on my printer, however, I should have known it would be too big for my printer. I would have to split it into two parts, or buy/build a bigger printer. Dave posted: 20 Nov 2018 03:54 from: Andrew Barrowman Hi Dave, Thanks for the encouraging words. The chairs are ...
... Ian Rice's book on building finescale track. Don't have the book so can't verify it. Nigel posted: 5 Dec 2015 12:26 from: Matt M. Concrete pot sleepers are covered in the late Andrew Dow's 'The Railway, British Track Since 1804. A worthwhile investment if you like track work. Yes there is a mention in Ian Rice's book with some thoughts on ways to model it. Regards Matt M. posted: 5 Dec 2015 12:30 from: Matt M. And yes the drawing and photo in Andrew's book show two bolt chairs on the GWR version. There is a 1944 technical drawing from The Railway Gazette which I imagine would be a copy of the GWR drawing. Regards, Matt M posted: 5 Dec 2015 21:47 from: Matt M. Hi Mike, There were three types of concrete pot used by the GWR. The basic dimensions are the same at 2ft-0 inches long by 1ft-6 inches wide. 5 inches high. The flat top area was 1ft-7 inches long by 1ft ...
... prices have gone up since we got them. Normally only the top/bottom and centre shelf is screwed to the sides with the other( adjustable) shelves just losely supported on pins. The bolt 'n braces approach is to glue and screw all the shelves in- that assumes your needs for different shelf heights won't change over time. I used the single width bookcases for heavy book storage as the shelves on the double ones sag under the weight of heavy hardbacks- although not as much as most bookcases. The answer to Andrew's original problem is to have a dedicated railway workshop( another name for the third bedroom) but his trolley idea is very good. I like coiled leads on soldering irons, mini drills and the like to, hopefully, reduce all the trailing cables a bit. Rob posted: 17 Oct 2018 11:53 from: Andrew Duncan Thanks Kelly, As to strength only time will tell wether mine is up to the job! Kind regards Andrew Last edited on 17 Oct 2018 11:54 by Andrew Duncan posted: 17 ...
... modelling. I was going to model early 70s, but realised 20+ years later that "my" nostalgia period is the turn of this century! I do have loads of photos of BH track though! Dduallt still had BH on my visits and I took loads of detail photos of the track and point rodding etc. Cheers, Paul posted: 3 Aug 2020 03:45 from: Andrew Barrowman Some US practice here; topic 3438 posted: 3 Aug 2020 08:22 from: Matt M. Hi Paul, Andrew's photo is great as it shows some of the standard features of a lap joint chocked Vee crossing. Of course the details do change according to geography, company and time period. Of interest to note are the two visible rivets that help clamp the webs together. Also note the the straight cut through the check rail's foot on the gauge side. I attach some drawings of 1956 NSWGR 80 lb crossing details to help you see what goes on. I'm not suggesting you attempt to model to exact standards, but it helps ...
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