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Post by paladin7221 on Feb 13, 2015 15:25:43 GMT
As part of my Baneblade conversion project, I want to replace the vision slits - those arched things just below the main turret plate - with something more rectangular and akin to modern AFV vision blocks.
Now, I tried the front ones from a Rhino and they were ridiculously big and although the driver's block from the 'Blade kit fitrs perfectly there's only 1 of them in the kit and I can find none from the usual bits suppliers.
So, anyone have any suggestions for similar things for me?
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Post by sw1 on Feb 14, 2015 15:47:25 GMT
Instant mould?
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Post by paladin7221 on Feb 16, 2015 12:57:59 GMT
What is it, where can I get some and how does it work?  |
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Post by sw1 on Feb 20, 2015 15:00:58 GMT
Will have a rummage and see if I can find the invoice for where I got it from.
It's a thermo plastic. Heat it in water out of the kettle and it becomes like soft clay. Mould it around the bit you want to copy and immerse in cold water. When cold it becomes a firm plastic. Slice around making sure there's a key so the two halves lock together and remove the piece. Then incert gs inside the mould press the two haves together and let cure. You'll have a copy of the piece once cured.
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Post by doomzombie on Feb 20, 2015 21:19:42 GMT
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Post by sw1 on Feb 22, 2015 13:32:44 GMT
That says high strength which you don't want with the mould. I bought something similar which was a high strength thermoplastic. It's great to make plastic items from which have a high strength but there's no give at all. So when you try and make a mould the plastic sets and you can't cut or pry out the item your copying without wrecking the mould. What you need to use is a plastic that's more like a very firm rubber when it's set. So this is what you want: m.ebay.co.uk/itm/350858398918?nav=SEARCHI paid £8 a few years ago for a similar amount. |
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Post by paladin7221 on Feb 26, 2015 16:35:28 GMT
Got some. Only question I have is once you've made the mould, do you have to coat it with oil/vaseline before pressing in the GS?
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Post by sw1 on Mar 1, 2015 7:15:35 GMT
Don't lube the instant mould with any oil or other agent as this messes up the instant moulds ability to be re used. Just a dab of water and it's none stick properties will be fine!
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Post by Geifer on Mar 4, 2015 16:23:25 GMT
Yeah, it works with just the mold, green stuff, your fingers and water. The mold doesn't need water at all if you want to let the green stuff settle (which I would advise) before pulling it out. It doesn't hurt if water gets in either. The only really important thing to know is that you need more water on your fingers than anywhere else, then the green stuff will go in the mold and stay there.
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