Yes, Self Hardening Clay or Rubber are better for a Metal Casting Mold. But in the case of this video the modeler says it a few times that it's Silicone at 0:09 and 0:33. And I can see from the residue in the GSI lego blocks and the mold flexibility that it's Silicone. There are white metals that can melt at temperatures as low as 160°F/71°C and have tried this method. As for the suspension castings, at 2:42, one can see that he didn't bother to clean up the master or the recast piece.
It is tin but he's using a self hardening clay, the silicone couldn't handle the liquid temperatures we tried this before, it will warp the mold inside, so a self hardening clay is best and it won't crack
I totally agree with kamui004. Him not taking care of that extreme amount of orange peel is something that I can't understand. He did do a great job on the windshield, this is the most interesting thing I've seen on this show since they scratch-built that anime figure. And still, he didn't even clean the master part up before casting it in metal, and I would have definitely used a rubber mold so I was surprised that it turned out alright. But at the end: to each his own.
He has expensive tools ($400usd vibroblade?), advanced techniques like casting and vacuforming, yet he skimps on very basic modeling techniques. All that money and he didn't buy some sanding pads and compound to sand/polish that orange peel? He filled the hollow suspension arms to recast, but he didn't bother to smooth or sand the fill. Alsoe one should have stripped the exhaust pipe chrome, clean the parting lines and fill the noticeable sink holes and then detail and detail/tint it.
Yes, I do build models and it's easier to point the mistakes. Even I find my own ones after I've finished a model. I didn't point any glitches from the 248F1 guy, because he did an excellent job or they didn't show any glaring basic mistakes. The vacuform windshield was the only well executed and useful technique. The bike showed orange peel on a finished body in a low-res streamed video! Recasting the suspension arms was pointless, should have taught molding and casting on some other example.
The mold were simply RTV Silicon. And the metal used is white metal. They are alloys, the most commonly used for modeling are tin-lead ones in different proportions which give different melting temperatures and hardness.
The method is called vacuforming. It's quite easy to do it even without a vacuum. Just heat up the plastic sheet and pull down over the part which was prepared like he did it. Nevertheless, a vacuum gives an even better result. Should try making one of those...
Tacaño cabron
Pakiito8 2 days ago
5:07 .....i started to cry. that was just beautiful :')
TheWongFong 3 weeks ago
Fantastic guy . . . made in Japan !!!
VagalumeRossi 5 months ago
Yes, Self Hardening Clay or Rubber are better for a Metal Casting Mold. But in the case of this video the modeler says it a few times that it's Silicone at 0:09 and 0:33. And I can see from the residue in the GSI lego blocks and the mold flexibility that it's Silicone. There are white metals that can melt at temperatures as low as 160°F/71°C and have tried this method. As for the suspension castings, at 2:42, one can see that he didn't bother to clean up the master or the recast piece.
kamui004 6 months ago
That USW-334 Ultrasonic Cutter is $350+!!!!
shadowblack1987 11 months ago
This guy is a fucking trip!
klpeekl2000 1 year ago
dun u guys not understanding wat is tht orange peel?
go and see the tamiya website
dimitrisoyamilk 1 year ago
cool video very goood model makers
stevephrgp 1 year ago
Excelent !! three tecnics y one segment, awesome!!
Artico20 2 years ago
metal casting, I knew this was going to be an interesting build.
acanthopleura 2 years ago 8
Comment removed
bttfspencer 2 years ago
THAT VAC FORMING WAS AWESOME!!!!!
bttfspencer 2 years ago 5
信じられないくらい手間掛けてる。てか金持ってるね。
ajisai21 2 years ago
did it say why he vacumformed the windscreen or was it just preference?
dcinhere 2 years ago
Well, the original was unrealistically thick, I assume so anyway.
Thats why he Vac formed a copy, which was considerablly thinner than the previous.
Happy Holdays
-BTTFSpencer
bttfspencer 2 years ago
It is tin but he's using a self hardening clay, the silicone couldn't handle the liquid temperatures we tried this before, it will warp the mold inside, so a self hardening clay is best and it won't crack
Lexesbenz 2 years ago
I totally agree with kamui004. Him not taking care of that extreme amount of orange peel is something that I can't understand. He did do a great job on the windshield, this is the most interesting thing I've seen on this show since they scratch-built that anime figure. And still, he didn't even clean the master part up before casting it in metal, and I would have definitely used a rubber mold so I was surprised that it turned out alright. But at the end: to each his own.
NeuesZiel 2 years ago
He does go overboard on his techniques, but that is HIS choice, I wouldn't but then again I am not him.
Lexesbenz 2 years ago
He has expensive tools ($400usd vibroblade?), advanced techniques like casting and vacuforming, yet he skimps on very basic modeling techniques. All that money and he didn't buy some sanding pads and compound to sand/polish that orange peel? He filled the hollow suspension arms to recast, but he didn't bother to smooth or sand the fill. Alsoe one should have stripped the exhaust pipe chrome, clean the parting lines and fill the noticeable sink holes and then detail and detail/tint it.
kamui004 2 years ago
And the point is...?
I think that you like to comment other modellers glitches. Right?
Do you build models?
Let's see them!
StormerZD 2 years ago
Yes, I do build models and it's easier to point the mistakes. Even I find my own ones after I've finished a model. I didn't point any glitches from the 248F1 guy, because he did an excellent job or they didn't show any glaring basic mistakes. The vacuform windshield was the only well executed and useful technique. The bike showed orange peel on a finished body in a low-res streamed video! Recasting the suspension arms was pointless, should have taught molding and casting on some other example.
kamui004 2 years ago
Very convincing answer!
Respect!
;-)
StormerZD 2 years ago
What material was the mold made out of? I don't know of a mold material that can withstand molten aluminum like that.
41dhos 2 years ago
it's not aluminum. i think its Tin which already melts at 550°F/230°C. Silicone should be able to handle these temperatures.
sleepylafiel 2 years ago
@sleepylafiel it "white metal" which is a tin lead alloy and melts even lower ~230 °C and 300 °C (450 °F and 575 °F)
Elios0000 1 year ago
The mold were simply RTV Silicon. And the metal used is white metal. They are alloys, the most commonly used for modeling are tin-lead ones in different proportions which give different melting temperatures and hardness.
kamui004 2 years ago
The method is called vacuforming. It's quite easy to do it even without a vacuum. Just heat up the plastic sheet and pull down over the part which was prepared like he did it. Nevertheless, a vacuum gives an even better result. Should try making one of those...
spyrosjzmichos 2 years ago
Holy shit that was nice how he made the wind shield!!
LRRPRANGERS 2 years ago
thats like the first time ive seen a windshield made that way. And is that like a vibrating knife? or heated?
ModeloIbarra 2 years ago
Yep, u r right, It is an ultrasonic vibrating knife. 40,000times/sec. amazing!
zpact 2 years ago
lol I love the part where he made the windshield. So clever
mynameisthepass 2 years ago
this is great for wwii aircraft too
Eth3realwarrior 2 years ago
exelente tutorial
bttfspencer 2 years ago