First attempt at cold casting

[juno]

This is my version of McGonagall's brooch in the Harry Potter movies. I made the original on my CNC mill.

First, the original piece just spraypainted with silver paint:

Now for my nickel silver cold cast version:

Mood shot:

 

[RedTwoX]

I can't say I'm familiar with the original, but you piece looks great. I always love your paper replicas, and it's impressive to see your talent extends to other media.

Great work. :thumbsup

 

[Too Much Garlic]

Looks very nice. :thumbsup

Though, what is cold casting and how does it differ from regular casting?

 

[juno]

Cold casting is where you blend fine metal powder with resin. You can then polish or patina the piece like real metal (and it even feels cold like metal).

 

[blufive]

Very nice. I'll have to notice her necklace the next time I watch the films.

 

[gonk27]

Looks great.

Is that a filled urathane resin as opposed to polyester? I know metal fillers can be added to poyester resin for fibreglass casting but I've been told it wouldn't work with the fast-cast urathane resins. Did try once and sure enough all I got was a dull dark grey finish no matter how hard I scrubbed with wire wool.


Jeremy

 

[juno]

I actually used Smooth-on 325 which is a fast-cast urethane.

 

[Boba Frett]

Nice work juno :thumbsup

 

[CGClone]

:thumbsup beautiful work :thumbsup

do you take commissions?

 

[gonk27]

<div class='quotetop'>QUOTE(juno @ Dec 8 2006, 06:11 PM) [snapback]1373931[/snapback]</div>

I actually used Smooth-on 325 which is a fast-cast urethane.
[/b]

Thanks Juno. Next time I try doing this I'll add more metal powder see if that helps.


Jeremy

 

[Red Five]

Vey nice.

 

[splogue]

Very nice. I like the idea that it is easy to work with but still comes out very similarly to metal.

 

[SgtFang]

<div class='quotetop'>QUOTE(gonk27 @ Dec 8 2006, 09:07 PM) [snapback]1374165[/snapback]</div>

<div class='quotetop'>QUOTE(juno @ Dec 8 2006, 06:11 PM) [snapback]1373931[/snapback]

I actually used Smooth-on 325 which is a fast-cast urethane.
[/b]

Thanks Juno. Next time I try doing this I'll add more metal powder see if that helps.


Jeremy
[/b][/quote]

Also, don't forget to dust your mold heavily with the metal powder too.

-Sarge