Dave the Twisted Posted August 16, 2010 Share Posted August 16, 2010 I tried experimenting with casting to save myself a bit of money and to make custom bits I can easily reproduce. ((I do NOT plan on profiting from this in ANY way)) So I threw a torso in the Stuff ((a mostly-blue mix)) and let that set. I popped it out later that evening and filled it back up with another glob of GS ((the same mixture as the shell I made)) and let that sit overnight. Epic win!http://i811.photobucket.com/albums/zz37/braintick42/SDC11089.jpg Or.... not. :( http://i811.photobucket.com/albums/zz37/braintick42/SDC11091.jpg I popped it out the next morning and was suitably impressed by the quality of detail retained. However, the casting shell tore when I sprang the bit loose. Is there a better way of doing this where I don't need to remake the casting shell every single time? Bear in mind that I have no resin or other such materials. I want to be able to do this with Green Stuff and nothing but. Link to comment https://bolterandchainsword.com/topic/208667-casting-in-green-stuff/ Share on other sites More sharing options...
WingsOfTheFalcon Posted August 16, 2010 Share Posted August 16, 2010 Yeah, brush the mold with oil or vaseline before you press the new GS into it, that will prevent sticking. Other suggestion would be to give your mold at least 48 hours to cure before you use it. Link to comment https://bolterandchainsword.com/topic/208667-casting-in-green-stuff/#findComment-2489937 Share on other sites More sharing options...
Dave the Twisted Posted August 17, 2010 Author Share Posted August 17, 2010 Thanks. I'll try both of those. Link to comment https://bolterandchainsword.com/topic/208667-casting-in-green-stuff/#findComment-2490033 Share on other sites More sharing options...
aekold Posted August 17, 2010 Share Posted August 17, 2010 I recently found this tutorial: http://www.warseer.com/painting/a_guide_to...n_stuff_casting I haven't tried it myself yet, but it looks really good. Link to comment https://bolterandchainsword.com/topic/208667-casting-in-green-stuff/#findComment-2490141 Share on other sites More sharing options...
Hemal Posted August 17, 2010 Share Posted August 17, 2010 A seperating agent as stated, vege oil or vaseline, will help. Also making the mould itself more boxy to give it better shear strength would be good, and final tip would be to produce the casting parts out of something like milliput - I know you have no access to this atm, but milliput is cheaper than (GW) greenstuff, and is much better for impressing hard details like power armour (I know people such as Scribor use GS for press-moulded parts because these are then glued around other parts of a model, milliput is not flexible at all). Link to comment https://bolterandchainsword.com/topic/208667-casting-in-green-stuff/#findComment-2490160 Share on other sites More sharing options...
aekold Posted August 17, 2010 Share Posted August 17, 2010 Which milliput doe people recommend for casting? Link to comment https://bolterandchainsword.com/topic/208667-casting-in-green-stuff/#findComment-2490175 Share on other sites More sharing options...
Hemal Posted August 17, 2010 Share Posted August 17, 2010 I use Superfine white for hard edged details, like wizard staffs, swords etc, as it can be filed down to an ncredibly smooth finish. But my mentor used normal millput to good effect. I've also mixed milliput wth GS for a hybrid between the two - has a some of the tackiness of GS (depending on mix) so the elasticity that can be used to produce nice details when partially set, but sets harder (and more brittle...) beacuase of the milliput. Link to comment https://bolterandchainsword.com/topic/208667-casting-in-green-stuff/#findComment-2490178 Share on other sites More sharing options...
Baal Dropout Posted August 17, 2010 Share Posted August 17, 2010 Can you still salvage your first mold by surrounding it again with GS? (of course resetting the torso to prevent deformation of the mold) Other than that, nice ^_^ Link to comment https://bolterandchainsword.com/topic/208667-casting-in-green-stuff/#findComment-2490193 Share on other sites More sharing options...
Dave the Twisted Posted August 17, 2010 Author Share Posted August 17, 2010 Hmm.... You know, I had not thought of that. Link to comment https://bolterandchainsword.com/topic/208667-casting-in-green-stuff/#findComment-2490549 Share on other sites More sharing options...
Hemal Posted August 18, 2010 Share Posted August 18, 2010 Only issue is that there will be a big scar where the tear is - no amount of shoring up will completely remove this tear Link to comment https://bolterandchainsword.com/topic/208667-casting-in-green-stuff/#findComment-2491145 Share on other sites More sharing options...
Dave the Twisted Posted August 18, 2010 Author Share Posted August 18, 2010 Yeah, that is unfortunate. I think I'll have to make some new molds. Fortunately I found some bottlecaps which should make a decent size for a mold. Link to comment https://bolterandchainsword.com/topic/208667-casting-in-green-stuff/#findComment-2491162 Share on other sites More sharing options...
Tsuro Posted August 19, 2010 Share Posted August 19, 2010 I've been making a few molds for my recent build, and I've got my method down pat. When I make GS molds, I make them in two parts. The first part is the 'detail' part. It's made exactly as you did, but much thinner. This allows the green stuff to flex, and so it can more easily be removed without tearing. After the first part has set, I then reinforce it with a thicker, inflexible layer. (I use polymorph plastic, but that's only because it's reusable and thus cheaper. Green stuff would work just as well.) The reinforcing section is necessary so the mold maintains its' shape and doesn't tear when you force the green stuff into it. Obviously if you are using GS to make this second section you need to lubricate the first, otherwise they'll stick together leaving one inflexible section. Once you've cast your piece, the piece and the detail section pop out of the larger mold. After that you almost peel the detail mold off. If you're lubricating everything sufficiently it shouldn't be too difficult. It's a slightly more involved process, but I don't think I can get better results before having to use a different casting agent. Tsuro Link to comment https://bolterandchainsword.com/topic/208667-casting-in-green-stuff/#findComment-2492567 Share on other sites More sharing options...
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