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 Komfritten's Moulding & Casting Corner

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Komfritten



Posts : 631
Join date : 2011-06-29
Age : 37
Location : Nørrebjerg Runddel, Odense, Danmark

PostSubject: Komfritten's Moulding & Casting Corner   Fri Jan 11, 2013 7:17 am

I think I'm ready to try something new, to me, in the hobby; moulding and casting.

This is the initial setup:



I will update when I do something and hope to get advice as well as giving them.

1: First things first. I build a moulding box, with lego.



2: Then covered the first cm with myDough, and stamped it flat with my LegoStamper(C)



3: Next I fitted the elements in the mouldbox, and pressed them halfway down the Dough.





4: Then I mixed the rubber with 5% hardener, and poured it in the mouldbox. I made a hole in the bottom of the cup, and placed it on the table, so the rubber strethced out as far as possible. This removed most of the air-bubbles.



5: Then I played the waiting game for about 24 hours.

6: When completely hardened I took out the mould, and it looked like this:



7: I removed the remaining Dough, with a toothbrush and VERY hot water - easy.

8: Then I placed the mould back in the mouldbox, and brushed the rubber with a release agent (only the rubber. I read that if you did it on the elements, they would loose details).



9: When the mould was firmly in place, I repeated the process.



10: Then i played the waiting game again for about 24 hours.

11: After, impationally, having waited a VERY long time, I broke out the mould, and found out that I had not applied enough release agent. But fret not! I took my trusty knife and hacked away, 'till the moulds split apart.







12: I cut out some plates from some wood I had in a box, to fit around the mold.



13: Using some rubber bands, I put it all together again. At this point I was VERY happy I had made "pilot-holes" in the corners, by pressing a pencil down the myDough. I applied rubber bands 'till I found that the two mould bulged out, and removed again 'till it exactly stopped again (hope that made sense).



14: I used a 20ml syringe (without the needle) to suck up some resin, and - rather fast - spray it down the entrance hole. I applied, until it came out of the air-ducts, I had cut in the mould at strategic points..

15: I waited for about 20 min, and took it apart.



16: There you have it, a replica of a TL Lascannon



Last edited by Komfritten on Mon Jan 14, 2013 12:08 pm; edited 1 time in total
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rhuntar



Posts : 201
Join date : 2010-05-01
Age : 32
Location : Portland OR

PostSubject: Re: Komfritten's Moulding & Casting Corner   Fri Jan 11, 2013 9:49 am

This looks quite exciting!?

I've never done any casting myself, but the props department at my work does every now and then and I'm always super intrigued. I can always ask my co-workers if you have any trouble and no one else around here happens to know.

-rhuntar
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mudboy



Posts : 955
Join date : 2009-07-18
Age : 32
Location : Frederiksberg, Denmark

PostSubject: Re: Komfritten's Moulding & Casting Corner   Fri Jan 11, 2013 9:52 am

Well that look's strangely familiar Wink

Looking forward to see what you come up with.
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Lord GreyWolf



Posts : 2218
Join date : 2010-02-19
Age : 41
Location : Te Aroha, New Zealand

PostSubject: Re: Komfritten's Moulding & Casting Corner   Fri Jan 11, 2013 9:52 pm

are you casting up bitz? a mini? or terrain?

I am keen to see how it goes and how easy/hard it is to do...

LGW
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Narcissus



Posts : 973
Join date : 2010-10-15
Location : Vancouver, BC

PostSubject: Re: Komfritten's Moulding & Casting Corner   Fri Jan 11, 2013 10:21 pm

I'm also interested to see how this goes.
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horrid



Posts : 45
Join date : 2011-01-30
Age : 42
Location : Halifax, Canada

PostSubject: Re: Komfritten's Moulding & Casting Corner   Sat Jan 12, 2013 1:06 am

Very interesting. It's something I always wanted to try out but figuring how badly I assumed I'd screw up versus the cost and hassle of ordering the product I kept putting it off. Watching eagerly; I'd like to see this in action. Many questions to follow.
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Komfritten



Posts : 631
Join date : 2011-06-29
Age : 37
Location : Nørrebjerg Runddel, Odense, Danmark

PostSubject: Re: Komfritten's Moulding & Casting Corner   Sat Jan 12, 2013 2:49 am

A little bit of everything actually. Right now I have a lascannon in the mould, and some lead-roof from Hirst arts.

the resin is fantastic Smile
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Komfritten



Posts : 631
Join date : 2011-06-29
Age : 37
Location : Nørrebjerg Runddel, Odense, Danmark

PostSubject: Re: Komfritten's Moulding & Casting Corner   Sun Jan 13, 2013 6:37 pm

The lead-roof was an utterly failure, I did not apply enough hardener.



But the TL lascannon was a huge succes!


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Da Bank



Posts : 2714
Join date : 2009-07-28
Location : Fort Myers, FL (USA)

PostSubject: Re: Komfritten's Moulding & Casting Corner   Sun Jan 13, 2013 8:58 pm

Komfritten: Great work! I might have to discuss something with you about a possible project. I will work up some details and work to PM you about it.
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horrid



Posts : 45
Join date : 2011-01-30
Age : 42
Location : Halifax, Canada

PostSubject: Re: Komfritten's Moulding & Casting Corner   Mon Jan 14, 2013 6:45 am

The cast of the cannon came out very clean. What happened with your mix ratio on the tin roof? I have a product called flexane I could do some nice molds with but all information was in weights rather than ratios (even online). I don't have a precise enough scale so I'm SOL until I rustle one up. Did you agitate after the pour? The absence of air bubbles on those casts is very impressive.

Very curious about the mold themselves. It looks like you set the channels/vents well because the parts look complete. Fantastic work!
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Komfritten



Posts : 631
Join date : 2011-06-29
Age : 37
Location : Nørrebjerg Runddel, Odense, Danmark

PostSubject: Re: Komfritten's Moulding & Casting Corner   Mon Jan 14, 2013 10:47 am

I have taken pictures of most of the process, so the first post will be updated eventurally when time allows it.

The lead / tin roof, just did not have enough hardener in the mix - it will never cure unfortunately.
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Komfritten



Posts : 631
Join date : 2011-06-29
Age : 37
Location : Nørrebjerg Runddel, Odense, Danmark

PostSubject: Re: Komfritten's Moulding & Casting Corner   Mon Jan 14, 2013 12:11 pm

First post updated.
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mudboy



Posts : 955
Join date : 2009-07-18
Age : 32
Location : Frederiksberg, Denmark

PostSubject: Re: Komfritten's Moulding & Casting Corner   Mon Jan 14, 2013 3:53 pm

Very nice!

It look's like you did a great job with the air vents.
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Narcissus



Posts : 973
Join date : 2010-10-15
Location : Vancouver, BC

PostSubject: Re: Komfritten's Moulding & Casting Corner   Tue Jan 15, 2013 3:07 am

Very nice. The lascannon details look nice and crisp. I am interested to hear about your plans for the casting. It is making me think of some different ideas for casting sculpted bits. Any sculpted bits you are interested in casting, Komfritten? I'd love to sculpt some bits and see them in resin.
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Komfritten



Posts : 631
Join date : 2011-06-29
Age : 37
Location : Nørrebjerg Runddel, Odense, Danmark

PostSubject: Re: Komfritten's Moulding & Casting Corner   Tue Jan 15, 2013 5:53 am

@ Narc: You just send them over.
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Gatlag Stonetooth



Posts : 1422
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Age : 37
Location : Ridderkerk, The Netherlands

PostSubject: Re: Komfritten's Moulding & Casting Corner   Tue Jan 15, 2013 8:03 am

Darn! This looks great!
Now you can have thousands of lascannons! Very Happy
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Komfritten



Posts : 631
Join date : 2011-06-29
Age : 37
Location : Nørrebjerg Runddel, Odense, Danmark

PostSubject: Re: Komfritten's Moulding & Casting Corner   Tue Jan 15, 2013 11:02 am

I have quite a lot of rhinos which could be nice to have the opportunity to be razorbacks too.
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Dysturbed



Posts : 1911
Join date : 2010-04-08
Age : 36
Location : Caldwell, Ohio

PostSubject: Re: Komfritten's Moulding & Casting Corner   Tue Jan 15, 2013 11:12 am

horrid wrote:
Very interesting. It's something I always wanted to try out but figuring how badly I assumed I'd screw up versus the cost and hassle of ordering the product I kept putting it off. Watching eagerly; I'd like to see this in action. Many questions to follow.

Go to a food store or walmart most of them carry cheap $20 food scales.

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Komfritten



Posts : 631
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Age : 37
Location : Nørrebjerg Runddel, Odense, Danmark

PostSubject: Re: Komfritten's Moulding & Casting Corner   Fri Jan 18, 2013 11:19 am

Latest endavour:
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Gatlag Stonetooth



Posts : 1422
Join date : 2009-07-15
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Location : Ridderkerk, The Netherlands

PostSubject: Re: Komfritten's Moulding & Casting Corner   Fri Jan 18, 2013 11:36 am

Darn! Those sure look crisp!
Great work! Smile
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