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Splash's workbench
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 Post subject: Re: Splash's workbench
PostPosted: January 22nd, 2018, 7:11 am 
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Wow! That's a useful skill to have!

Looking good!

David


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Splash's workbench
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 Post subject: Re: Splash's workbench
PostPosted: January 22nd, 2018, 3:58 pm 
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This is looking great, Alan and I'm mightily impressed with your moulding of those additional Higgins boats. I never seem to find the time or bottle to do stuff like that!

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Splash's workbench
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PostPosted: January 22nd, 2018, 7:11 pm 
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David & Shaun

Making moulds with two part silicon is really easy, I use Gedeo Siligum Silicone Moulding Paste, it comes in 100 or 300 gram packs and is available from Hobbycraft stores https://www.hobbycraft.co.uk/gedeo-siligum-silicone-moulding-paste-300-g/570131-1000

I bought the bigger size pack as it’s cheaper in the long run and it last well, as you only scoop out what you need and seal up the remaining for use later. You get about 15 minutes working time and it has the consistency of silly putty, for a two part mould you let the first half set then smear a thin layer of Vaseline on the contact area so the second mould doesn’t stick.

The final mould is flexible so it’s easy to get casting out as the resin or car filler doesn’t stick.

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Splash's workbench
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 Post subject: Re: Splash's workbench
PostPosted: January 22nd, 2018, 11:40 pm 
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Terrific scratch building and the cast boats look great.

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Splash's workbench
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 Post subject: Re: Splash's workbench
PostPosted: January 22nd, 2018, 11:57 pm 
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The moulding medium you are using Alan, can it be reused or is it one use stuff.
I got some stuff to try but have not got that far yet to try it, but it is reusable and works in the microwave


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Splash's workbench
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 Post subject: Re: Splash's workbench
PostPosted: January 23rd, 2018, 8:25 am 
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chrism wrote:
The moulding medium you are using Alan, can it be reused or is it one use stuff.
I got some stuff to try but have not got that far yet to try it, but it is reusable and works in the microwave


Unfortunately it’s a one shot process but the moulds can be used for 50 times.

I have used a microwave reusable medium that I found for one copy was fine but tended to deteriorate quickly.

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Splash's workbench
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 Post subject: Re: Splash's workbench
PostPosted: January 23rd, 2018, 1:11 pm 
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Thanks for the info, Alan. I really must stop being spineless and try some home moulding!

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Work is the curse of the modelling classes!
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Splash's workbench
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 Post subject: Re: Splash's workbench
PostPosted: January 24th, 2018, 9:03 pm 
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ShaunW wrote:
Thanks for the info, Alan. I really must stop being spineless and try some home moulding!


Shaun you might like this Blue Stuff that Daz found for me

Dazzled wrote:
I came accross this and wondered if it would be a good way to reproduce the Higgins boats as you already have two to use as masters.

https://www.youtube.com/watch?v=mVZLXLaidjQ


I ordered some off eBay and now have had a chance to play with it.

I must say I’m quite impressed, you just drop it in boiling water, wait three minutes and it comes out as soft as chewing gum and is easy to press around the object you want to copy, when it cools you can repeat to make the other half.

In the example below I have used car filler spread on both sides and the squeezed together, the surplus gets squeezed out and forms thin flash this is easily broken off when you open the two halves.

Image

Image

Image

Image

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Splash's workbench
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 Post subject: Re: Splash's workbench
PostPosted: January 24th, 2018, 11:54 pm 
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Most effective :razz:

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Splash's workbench
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 Post subject: Re: Splash's workbench
PostPosted: January 28th, 2018, 2:47 pm 
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Image

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Splash's workbench
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 Post subject: Re: Splash's workbench
PostPosted: January 28th, 2018, 2:59 pm 
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Working on the Call of Duty Lego type brick with play figure, I thought I might try to improve his suit to blend in with the base so I added some of the scatter grass I used on the base on his suit.

Image

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Splash's workbench
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 Post subject: Re: Splash's workbench
PostPosted: January 28th, 2018, 3:56 pm 
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Car filler? You mean something like Bondo? Is the result brittle?


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Splash's workbench
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 Post subject: Re: Splash's workbench
PostPosted: January 28th, 2018, 5:12 pm 
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For very fine parts I think it would be brittle but for these one inch long Higgins boat It’s fine.

You could use Milliput or two part resin if you wanted more strength.

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Splash's workbench
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 Post subject: Re: Splash's workbench
PostPosted: January 28th, 2018, 11:22 pm 
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Image

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Currently sitting on my bench is far too many unfinished kits.


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Splash's workbench
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 Post subject: Re: Splash's workbench
PostPosted: February 2nd, 2018, 1:01 am 
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Nicely done!
Thanks for all the moulding info. I have made a few attempts with rubber and resin in the past; not enough to get skilled at it.
As we get older, it seems that easier solutions abound!

Cheers,

David


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