Starfighter Posted March 21, 2017 Author Share Posted March 21, 2017 Adding volume is a pretty labour and dust intensive part of my scratchbuilding method. As usual, I use high density PU foam which ist first cut and then sanded to shape. Derek B, allthumbs, Jeff and 4 others 7 Link to comment Share on other sites More sharing options...
Out2gtcha Posted March 21, 2017 Share Posted March 21, 2017 Wow, thats a pretty cool method. How does the foam sand, is it pretty sandable, IE not the "spongy" type of foam? This looks like a great method for scratch building Derek B, HerculesPA_2, MikeMaben and 1 other 4 Link to comment Share on other sites More sharing options...
HerculesPA_2 Posted March 21, 2017 Share Posted March 21, 2017 Hi my friend Starfighter, I would like use this foam but here in Brasil we dont have this material... We use normaly same method, friend... Great job and folowing... Hercules de Araujo from Brasil Link to comment Share on other sites More sharing options...
Shujaa Posted March 21, 2017 Share Posted March 21, 2017 Nice to get a "behind the scene view" regarding Your "scratch-build technologies". Following with great interest since I might give this a try in the future as well... Could You tell us a little bit more regarding the high density PU foam ? 1) What is it used for in real life ? 2) Is there a specific brand to look out for ? 3) Where is it available ? 4) Price-indication ? 5) How do You cut it ? Am I looking at a small PROXXON band-saw in the pic's or is it an "electrical foam-cutter" ? 6) How does it hold up when being sanded ? (as asked by "Out2gtcha".) Please do show us more regarding the "behind the scene's-work"...!!! Regards Rudy. Link to comment Share on other sites More sharing options...
Lee White Posted March 21, 2017 Share Posted March 21, 2017 Nice to get a "behind the scene view" regarding Your "scratch-build technologies". Following with great interest since I might give this a try in the future as well... Could You tell us a little bit more regarding the high density PU foam ? 1) What is it used for in real life ? 2) Is there a specific brand to look out for ? 3) Where is it available ? 4) Price-indication ? 5) How do You cut it ? Am I looking at a small PROXXON band-saw in the pic's or is it an "electrical foam-cutter" ? 6) How does it hold up when being sanded ? (as asked by "Out2gtcha".) Please do show us more regarding the "behind the scene's-work"...!!! Regards Rudy. Cutting PU foam with a wire cutter is discouraged, because (as I understand it) toxic fumes are released from the hot foam. Link to comment Share on other sites More sharing options...
Joel_W Posted March 21, 2017 Share Posted March 21, 2017 Ben, What an effective method to forming all the solid parts of the fuselage. As others have asked, what type and brand are you using? Joel Out2gtcha 1 Link to comment Share on other sites More sharing options...
Out2gtcha Posted March 21, 2017 Share Posted March 21, 2017 Ben, What an effective method to forming all the solid parts of the fuselage. As others have asked, what type and brand are you using? Joel Indeed, inquiring minds want to know! Link to comment Share on other sites More sharing options...
LSP_Kevin Posted March 21, 2017 Share Posted March 21, 2017 Terrific work on a sensational project, Ben! Very inspirational. Kev Link to comment Share on other sites More sharing options...
Starfighter Posted March 23, 2017 Author Share Posted March 23, 2017 The foam I use is available from different manufacturers under different names - Ureol, Renshape, Sculpture Block (in art supply stores) etc. I mostly use medium density foam cut with a Proxxon jigsaw; the one I have is not quite strong enough to cut high density foam. The foam sands perfectly and is easily cut; it's not spongy at all but highly resistant to compression. The company I work for uses the high density version to machine support structures for very big sliding window systems. Out2gtcha, Joel_W and wunwinglow 3 Link to comment Share on other sites More sharing options...
Shujaa Posted March 23, 2017 Share Posted March 23, 2017 Thanx for the speedy reply Ben and taking the time to answer my questions. Regards Rudy. Link to comment Share on other sites More sharing options...
Guest Peterpools Posted March 23, 2017 Share Posted March 23, 2017 Ben As always, following with intense interest Keep 'em coming Peter Link to comment Share on other sites More sharing options...
wunwinglow Posted March 23, 2017 Share Posted March 23, 2017 http://www.easycomposites.co.uk/#!/patterns-moulds-and-tooling/tooling-and-modelling-board http://www.resins-online.com/ecommerce/product/sikablock-m650-polyurethane-model-board-500mm-x-497mm-x-100mm.aspx http://www.alchemie.com/category/products/modelboard/ If anyone wants a small offcut to try, drop me a line. We get through yards of the stuff sometimes, depending on the projects in hand! I work for these guys in the prototyping department. I must have been VERY good in a previous life! http://www.kinneirdufort.com Derek B 1 Link to comment Share on other sites More sharing options...
Joel_W Posted March 23, 2017 Share Posted March 23, 2017 Ben, Thanks for the info. I have two major art supply big box stores close by, so I'll be checking them out for the boards. Joel Link to comment Share on other sites More sharing options...
Starfighter Posted March 29, 2017 Author Share Posted March 29, 2017 Progress is extremely slow at the moment as therer are quite a few things to do at home. Anyway, the Greyhound is slowly taking shape. Derek B, stusbke, Emilio and 4 others 7 Link to comment Share on other sites More sharing options...
Jim Barry Posted March 29, 2017 Share Posted March 29, 2017 Looking good, Ben. Hope time frees up. Your filler method seems top notch. I just ordered some Sculpture Block from Amazon for my next project. Starfighter and stusbke 2 Link to comment Share on other sites More sharing options...
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