RMweb Premium MJI Posted November 27, 2014 RMweb Premium Share Posted November 27, 2014 I am sure with the coreless motor and a nice gear train Dave's will run like silk! locos are for running not display cases! Free the locos Take a Bachmann limited edition Hall in wooden case - ran it on a garden railway Link to post Share on other sites More sharing options...
mikesndbs Posted December 18, 2014 Share Posted December 18, 2014 Hi, can I confirm that the pantagraph will be operational physically? I want to have a short bit of overhead to demo it Link to post Share on other sites More sharing options...
DJM Dave Posted December 18, 2014 Author Share Posted December 18, 2014 Hi, can I confirm that the pantagraph will be operational physically? I want to have a short bit of overhead to demo it Hi Mike, Unfortunately no, sorry. A working pantograph, while relatively easy to manufacture, would have to be in metal, with springs to hold tension and wouldnt be as accurate as i would like. plus it would cost a lot more in due cutting, not forgetting the intrusive latch down bars, spoiling the look Therefore i'm doing it as a plastic panto which is pose able and with a correct panto head. Cheers Dave I realise that Link to post Share on other sites More sharing options...
mikesndbs Posted December 18, 2014 Share Posted December 18, 2014 Hi Mike, Unfortunately no, sorry. A working pantograph, while relatively easy to manufacture, would have to be in metal, with springs to hold tension and wouldnt be as accurate as i would like. plus it would cost a lot more in due cutting, not forgetting the intrusive latch down bars, spoiling the look Therefore i'm doing it as a plastic panto which is pose able and with a correct panto head. Cheers Dave I realise that Hmmm! OK but for when I do my review video I'll be able to extend it up to touch the wires I have just put in place to show how it would have been, is that what you mean by poseable? Link to post Share on other sites More sharing options...
DJM Dave Posted December 18, 2014 Author Share Posted December 18, 2014 Hmmm! OK but for when I do my review video I'll be able to extend it up to touch the wires I have just put in place to show how it would have been, is that what you mean by poseable? Hi Mike, That's correct, i could cop out and do one non scale, but i dont really see the point. I could spend lots of money on a scale metal sprung one but it would put the price up by a fair bit. It's a rock and a hard place really for me on this. cheers Dave Link to post Share on other sites More sharing options...
mikesndbs Posted December 18, 2014 Share Posted December 18, 2014 Hi Mike, That's correct, i could cop out and do one non scale, but i dont really see the point. I could spend lots of money on a scale metal sprung one but it would put the price up by a fair bit. It's a rock and a hard place really for me on this. cheers Dave Hi Dave That's ok then just spent some hours and cash or sorting out the overhead wires then suddenly thought!! As long as I can raise it up to look like its in contact that will be fine and I fully understand the costs involved etc. Cheers Link to post Share on other sites More sharing options...
DJM Dave Posted December 19, 2014 Author Share Posted December 19, 2014 Hi everyone, Just thought id post some teaser pics from the laser scanning to show how accurate the forthcoming class 71 should be. (lots of extra detail is being added as the conversion from laser scanned item to finished 'tool ready' program is completed). I'm not going to be showing larger pictures of the cad for now, as i am not in the business of giving potential competitors a leg up when this model is yours through crowd sourcing. However these teaser pics from the loco should get the juices flowing as to detail i indent the model to have. cheers Dave 8 Link to post Share on other sites More sharing options...
bennyboy Posted December 19, 2014 Share Posted December 19, 2014 Do we win a prize if we can guess where those parts are located? Link to post Share on other sites More sharing options...
DJM Dave Posted December 19, 2014 Author Share Posted December 19, 2014 Do we win a prize if we can guess where those parts are located? lol, nice try 1 Link to post Share on other sites More sharing options...
10800 Posted December 19, 2014 Share Posted December 19, 2014 Hi Mike, That's correct, i could cop out and do one non scale, but i dont really see the point. I could spend lots of money on a scale metal sprung one but it would put the price up by a fair bit. It's a rock and a hard place really for me on this. cheers Dave Probably already mentioned earlier, but Judith Edge do an etched pan for the 71 (and the 70, whenya gonna do those Dave?). Link to post Share on other sites More sharing options...
JSpencer Posted December 19, 2014 Share Posted December 19, 2014 Probably already mentioned earlier, but Judith Edge do an etched pan for the 71 (and the 70, whenya gonna do those Dave?). I agree, I got all excited when Bachmann first announced a class 70 and was all disappointed when I saw it was one of them 21st century ugly preditor things. I be want'in a proper Bullief 70, I be.... Link to post Share on other sites More sharing options...
jsp3970 Posted December 20, 2014 Share Posted December 20, 2014 lol, nice try Oh come on Dave, you could have said yes, then told him that his prize is the knowledge that he is smarter than the rest of us! Link to post Share on other sites More sharing options...
Les1952 Posted December 20, 2014 Share Posted December 20, 2014 (edited) Just a thought on the pantograph- how about a website link (once the loco is delivered) to places where a working substitute can be sourced for those wo want it? For example Somerfeldt, Judith Edge etc- Total cost to Dave is some time to put the links up. All the very best Les (as ever, edited for trypos) Edited December 20, 2014 by Les1952 1 Link to post Share on other sites More sharing options...
mikesndbs Posted December 20, 2014 Share Posted December 20, 2014 Hmm so how will the pick up shoes be modeled? up or down Link to post Share on other sites More sharing options...
DJM Dave Posted December 20, 2014 Author Share Posted December 20, 2014 Hmm so how will the pick up shoes be modeled? up or down Be nice if you had the choice eh? ;-) Cheers Dave Link to post Share on other sites More sharing options...
mikesndbs Posted December 20, 2014 Share Posted December 20, 2014 Be nice if you had the choice eh? ;-) Cheers Dave yes it would, you little tease lol By the way, seasons greetings to you all and the best for 2015. Cheers Mike 1 Link to post Share on other sites More sharing options...
DJM Dave Posted December 20, 2014 Author Share Posted December 20, 2014 Just a thought on the pantograph- how about a website link (once the loco is delivered) to places where a working substitute can be sourced for those wo want it? For example Somerfeldt, Judith Edge etc- Total cost to Dave is some time to put the links up. All the very best Les (as ever, edited for trypos) Hi Les, I'll be checking the Judith Edge panto out soon, and will probably add this info to the instruction sheet within the box for those that wish further options. Cheers Dave 2 Link to post Share on other sites More sharing options...
doublecee Posted December 20, 2014 Share Posted December 20, 2014 Hi everyone, Just thought id post some teaser pics from the laser scanning to show how accurate the forthcoming class 71 should be. (lots of extra detail is being added as the conversion from laser scanned item to finished 'tool ready' program is completed). I hate to be picky, but these are not pictures from a laser scan. These are screen grabs of CAD models in a CAD workspace. Link to post Share on other sites More sharing options...
Judge Dread Posted December 20, 2014 Share Posted December 20, 2014 (edited) I agree, I got all excited when Bachmann first announced a class 70 and was all disappointed when I saw it was one of them 21st century ugly preditor things. I be want'in a proper Bullief 70, I be.... You do realise that Dave maybe reluctant to market one of these wonderful locos as their nickname was "Hornby's" as in a popular Liverpool based manufacturer at that time. Here's one of Charlie's examples of a class 71 under the wires at Brockley Green. Edited December 20, 2014 by Judge Dread 2 Link to post Share on other sites More sharing options...
DJM Dave Posted December 20, 2014 Author Share Posted December 20, 2014 I hate to be picky, but these are not pictures from a laser scan. These are screen grabs of CAD models in a CAD workspace. I hate to be picky too ;-) These are taken from the solidworks conversion directly from the laser scans cloud, fettled up by the scanning company to take into account areas where the laser has not read areas successfully (they had black bogies or underframes for instance). (3D laser rendering) What i'm then left with is a basis to start the cad/cam design around taking into account moulding, undercuts, added parts, motorised chassis, etc. So while correct they are a cad of sorts, they are not a cad/cam you can work at the minute. That process is under construction at the moment. cheers Dave Link to post Share on other sites More sharing options...
DJM Dave Posted December 20, 2014 Author Share Posted December 20, 2014 You do realise that Dave maybe reluctant to market one of these wonderful locos as their nickname was "Hornby's" as in a popular Liverpool based manufacturer at that time. Here's one of Charlie's examples of a class 71 under the wires at Brockley Green. Under the wires.JPG I'm thinking of having the press launch for the model in Binns Road, Liverpool. Such delicious irony 1 Link to post Share on other sites More sharing options...
doublecee Posted December 20, 2014 Share Posted December 20, 2014 Fair point, but perhaps for the benefit of your investors, you should be a bit clearer because " teaser pics from the laser scanning" led me to believe we'd be seeing some of the raw data (pointcloud) which is of course my bag. Sorry to hear about the lack of detail for the bogies and undercarriage. Who did you use? Link to post Share on other sites More sharing options...
DJM Dave Posted December 20, 2014 Author Share Posted December 20, 2014 Fair point, but perhaps for the benefit of your investors, you should be a bit clearer because " teaser pics from the laser scanning" led me to believe we'd be seeing some of the raw data (pointcloud) which is of course my bag. Sorry to hear about the lack of detail for the bogies and undercarriage. Who did you use? Hi mate, The problem, apparently with black is that apparently the laser doesnt pick it out too clearly, and as such great care has to be taken when extrapolating the data. I get your point about the comment. As for the scanning company, i'm not going to do that on an open forum, sorry. However their bona fides are very good, and they are used by Network Rail for infrastructure work, and have worked for other companies on scanning loco's for their models. cheers Dave Link to post Share on other sites More sharing options...
SRman Posted December 20, 2014 Share Posted December 20, 2014 Perhaps one of the problems with scanning a preserved locomotive (or item of rolling stock, for that matter). The blacks tend to be blacker because they are more often kept clean, where normal service stock tends to weather and fade, so the blacks are really shades of grey and brown. Link to post Share on other sites More sharing options...
doublecee Posted December 20, 2014 Share Posted December 20, 2014 Perhaps one of the problems with scanning a preserved locomotive (or item of rolling stock, for that matter). The blacks tend to be blacker because they are more often kept clean, where normal service stock tends to weather and fade, so the blacks are really shades of grey and brown. ... ive never had that problem. Its all about technique as much as it is about tech. Anyway, I don't want to hijack the thread, or divert its course. Im off to see if the weather is clement enough to run a few new loco's in the garden. 1 Link to post Share on other sites More sharing options...
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