bmthtrains - David Posted December 30, 2013 Author Share Posted December 30, 2013 A few hours further on now. There are some distinctive piston arms that connect the inset side hatches, but are too fine to print, so I will probably draw these up as either a laser cut or etched component. David 7 Link to post Share on other sites More sharing options...
bmthtrains - David Posted January 1, 2014 Author Share Posted January 1, 2014 Another project squeezed in before I start back at Uni next week - a Komatsu PW150 road-rail excavator. The arm will be in a fixed position, but the body can be turned, and the rail wheels piece has been designed to be reversable - stick it on one way up to be 'wheels down', the other for 'wheels up'. This should look nice sat in a siding or parked up in the yard on my (whenever I find the time and money to make it) next layout... David 14 Link to post Share on other sites More sharing options...
RMweb Gold RedgateModels Posted January 1, 2014 RMweb Gold Share Posted January 1, 2014 Don't forget the four p - way workers sat on the roof Link to post Share on other sites More sharing options...
Ivatt46403 Posted January 8, 2014 Share Posted January 8, 2014 Hi David, I've been looking through this thread and your work is really impressive. Would you be able to scale up to OO? I'd love to have a RailVac! Marcus. Link to post Share on other sites More sharing options...
andygif Posted January 8, 2014 Share Posted January 8, 2014 Hi David, I've been looking through this thread and your work is really impressive. Would you be able to scale up to OO? I'd love to have a RailVac! Marcus. I expect he can, but can I interest you in a home loan to finance the purchase of it if its made in one lump ???? Link to post Share on other sites More sharing options...
bmthtrains - David Posted January 8, 2014 Author Share Posted January 8, 2014 Unfortunately, yes, the costs do rocket. Simply doubling the scale means multiplying the volume by a factor of 8. I can then redesign it completely to thin the walls back down to minimum thickness, but you are still looking at about 5x the cost, so about £160 for the railvac in OO. Once 3D printing costs come down, OO will certainly be cost effective, but for now it's really only suitable for N in most cases. David Link to post Share on other sites More sharing options...
Ivatt46403 Posted January 8, 2014 Share Posted January 8, 2014 Hmm yes I suspected that might be the case, and although not totally insane £160 is a lot for an incomplete kit. Would you be willing to share the CAD files for the railvac (for a modest fee even?) as a basis for a scratch build? Link to post Share on other sites More sharing options...
Etched Pixels Posted January 10, 2014 Share Posted January 10, 2014 Looking nice - I wonder if the innards of the Tomix track hoover would fit the railvac 8) 1 Link to post Share on other sites More sharing options...
sjgardiner Posted January 13, 2014 Share Posted January 13, 2014 (edited) Once 3D printing costs come down, OO will certainly be cost effective, but for now it's really only suitable for N in most cases. David I would agree when dealing with things of the scale and scope of full vehicles as your amazing work is David. I have done numerous small parts in HO (for all intents and purposes the difference in scale to OO is immaterial for the cost issue at present) including replacement window strips for passenger cars to do a kitbash, but a full vehicle in HO remains an unreasonable cost. Detail parts, road vehicles, small structures and the like are totally doable at the moment in OO without being overly expensive. Someone recently told me that some of the patents on 3D printing expire in February 2014, this could result in an influx of new machines and progress as the market opens up if that is correct. Stephen Edited January 13, 2014 by sjgardiner Link to post Share on other sites More sharing options...
bmthtrains - David Posted January 18, 2014 Author Share Posted January 18, 2014 I had a huge box of prints arrive from Shapeways on Friday. First up to be worked on is the railvac unit. Some more detailing to be done, but this is looking quite nice so far... David 7 Link to post Share on other sites More sharing options...
bmthtrains - David Posted January 18, 2014 Author Share Posted January 18, 2014 And the excavator, tiny as it is, is also looking good with just the body decals on. Next step is glazing. Hmm... David 6 Link to post Share on other sites More sharing options...
bmthtrains - David Posted January 18, 2014 Author Share Posted January 18, 2014 And finally, a preview of how the HOBC is coming along... David 10 Link to post Share on other sites More sharing options...
RMweb Gold roundhouse Posted January 18, 2014 RMweb Gold Share Posted January 18, 2014 David Looks like a busy weekend! All looking very good. Ian Link to post Share on other sites More sharing options...
backofanenvelope Posted January 19, 2014 Share Posted January 19, 2014 And the excavator, tiny as it is, is also looking good with just the body decals on. Next step is glazing. Hmm... David image.jpg Try finding some cover slips, not sure if you could buy them from here but might be worth a try.. Link to post Share on other sites More sharing options...
bmthtrains - David Posted January 19, 2014 Author Share Posted January 19, 2014 A few more shots of the HOBC. The separate parts (30 of them) are just resting in place at the moment, they need gluing in (and the cab interior paint finished) before decals and brass details can be added. I must commend Shapeways here, the quality of print on this has been superb. David 6 Link to post Share on other sites More sharing options...
Wild Boar Fell Posted January 19, 2014 Share Posted January 19, 2014 Hello David, Once again a superb job on the HOBC and the excavator, however I must admit that the Railvac is my favourite out of all of them. Now that the first parts of the HOPS are in Britain and some of the other vehicles are due soon, will we be seeing them in N soon too? Best Regards, Wild Boar Fell Link to post Share on other sites More sharing options...
bmthtrains - David Posted January 20, 2014 Author Share Posted January 20, 2014 Cruelly enlarged, but I've started on the detailing of the HOBC, the first cab is now on. I need to draw up a design for an etch to make the distinctive front window grilles. David 8 Link to post Share on other sites More sharing options...
bmthtrains - David Posted February 2, 2014 Author Share Posted February 2, 2014 A test run of my latest prints proved successful this week - it's also reminded me now much I miss running my layout. The sooner I can get a permanently set up layout the better! David 18 Link to post Share on other sites More sharing options...
69843 Posted February 3, 2014 Share Posted February 3, 2014 Looks lovely! Slightly O/T, are those billboards ever changed around? Link to post Share on other sites More sharing options...
Matt B Posted February 5, 2014 Share Posted February 5, 2014 Another project squeezed in before I start back at Uni next week - a Komatsu PW150 road-rail excavator. The arm will be in a fixed position, but the body can be turned, and the rail wheels piece has been designed to be reversable - stick it on one way up to be 'wheels down', the other for 'wheels up'. This should look nice sat in a siding or parked up in the yard on my (whenever I find the time and money to make it) next layout... David komatsu road rail.jpg komatsu road rail up.jpg David, Your work on this thread is fantastic and every big boys dream. The road rail excavator looks very good but does not look quite right, have you based it on a prototype as most of the ones i have worked with come have smaller arms. Not sure about the rules for posting a link but a search using a well known internet search engine turns up many pictures of smaller road rail machines. Hope this helps Matt Link to post Share on other sites More sharing options...
bmthtrains - David Posted February 5, 2014 Author Share Posted February 5, 2014 Hi Matt, It's a model of the Komatsu PW150 - there are lots in use, with many different arm combinations. The model is based on plans I have for the actual excavator. David Hi Matt, It's a model of the Komatsu PW150 - there are lots in use, with many different arm combinations. The model is based on plans I have for the actual excavator. David Link to post Share on other sites More sharing options...
Matt B Posted February 5, 2014 Share Posted February 5, 2014 Hi david, Thanks for the info. Did you resolve how to glaze the cab of the excavator? Matt Link to post Share on other sites More sharing options...
andygif Posted February 15, 2014 Share Posted February 15, 2014 Looking at the komatsu's chassis has got me wondering how hard would it be to use that for producing a Coles Argus yard crane? 1 Link to post Share on other sites More sharing options...
Davek Posted February 17, 2014 Share Posted February 17, 2014 Hello David, Just read through this thread and have been amazed at the work and quality in producing stuff at this scale. The HOBC is amazing! Keep up the fantastic work. Dave Link to post Share on other sites More sharing options...
RMweb Gold roundhouse Posted April 4, 2014 RMweb Gold Share Posted April 4, 2014 Hi David Any progress on more of your 3D printing projects? Ian Link to post Share on other sites More sharing options...
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