Ian Fisher Posted December 10, 2015 Author Share Posted December 10, 2015 Hi James, It seems you just make the mould around something stiff! I had an idea of how to go about it but the very nice people at Tirantis have offered advice and guidance too Would be interesting to see how you tackle the mould making process Ian! I tried resin casting the entire vehicle sides & rooves of my 377 Electrostars but couldn't find a good way of making a large enough rubber mould that didn't sag or change shape - will be interested if you find a way around this, very best of luck!! Link to post Share on other sites More sharing options...
RMweb Premium James Makin Posted December 10, 2015 RMweb Premium Share Posted December 10, 2015 Hi James, It seems you just make the mould around something stiff! I had an idea of how to go about it but the very nice people at Tirantis have offered advice and guidance too Nice, I'd thought about how to make the mould stiff so it doesn't sag during the casting process when the resin's still a liquid, like inserting wires/metal elements to the rubber but my idea fell down when working out how to release the cast resin, bending the mould out of the strengthened cast without ripping/bending out the metal from the rubber but I'm guessing the experts must have some best practice they can share! Link to post Share on other sites More sharing options...
Ian Fisher Posted December 11, 2015 Author Share Posted December 11, 2015 Hardboard and elastic bands! Oh and filler blocks... Link to post Share on other sites More sharing options...
Ian Fisher Posted December 11, 2015 Author Share Posted December 11, 2015 Hardboard and elastic bands! You basically add in additional plugs to the mould thst help support the mould It also reduces the need for expensive rubber So the top plug mould the carriage inner could be a batten of 20 mm x 20 mm (cheaper filler product balsa or something ) 1 Link to post Share on other sites More sharing options...
Ian Fisher Posted December 15, 2015 Author Share Posted December 15, 2015 A few more details have been added to the bodies. I feel that the blue oxygen door open sensors are probably easier added as part of the body.... a little bit of scribing and I think it will be getting ready to dunk em in RTV. 2 Link to post Share on other sites More sharing options...
Ian Fisher Posted December 16, 2021 Author Share Posted December 16, 2021 nine years on.. 2 Link to post Share on other sites More sharing options...
black and decker boy Posted January 4, 2022 Share Posted January 4, 2022 On 16/12/2021 at 01:05, Ian Fisher said: nine years on.. you've clearly resurrected both 325 threads for a reason? Anything tangible to show us from your 325 build? There must be many interested as these are very distinctive units 1 1 Link to post Share on other sites More sharing options...
woodenhead Posted January 4, 2022 Share Posted January 4, 2022 2 hours ago, black and decker boy said: you've clearly resurrected both 325 threads for a reason? Anything tangible to show us from your 325 build? There must be many interested as these are very distinctive units I know your game, as soon as Ian finishes a 325 then someone will present one in RTR. 1 1 Link to post Share on other sites More sharing options...
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