Casting Massive Aluminium Plaque By The Lost Foam Sandcasting Meathod

[@capin232]

Absolutely Awesome, this is one of the best on the tube. Have a great day and keep up the great vids. Brian

[@Wrighmachining]

Thanks brian, appreciate it.

[@jasonhull5712]

That’s amazing. I truly appreciate your showing the first pour.

[@Wrighmachining]

Thanks jason , i figured poeple may learn just as much from the failures as the wins if not more .

[@GoldSilverHunter]

Just came across you, now thats an awesome pour! An awful lot of work but what a result!

[@Wrighmachining]

Glad you enjoyed ! Come spring time i will be nack at it again and shpuld have more casting videos

[@AmateurRedneckWorkshop]

That is a great result. You got this thing nailed. Thanks for the video keep on keeping on.

[@Wrighmachining]

thank you, we are always pushing ourselves to new levels and it's cool when you make it to one. Now .... What? :)

[@hilltopmachineworks2131]

Nice job! Glad you have some warmer weather and you are not having to do this in a foot of snow.

[@Wrighmachining]

Thanks God, spring is always the casting season and it's a mess :) ready for summer that's for sure. 2 projects left yours and another.

[@frankbeulting396]

Congrats Ryan!

[@Wrighmachining]

Thank you

[@kentuckytrapper780]

Excellent job man, came out great 👍👍👍

[@Wrighmachining]

Thanks trapper !

[@georgeglennon6623]

(off topic) when making a three phase inverter using capacitors to balance legs and using a idler motor to ramp up the 3 phase motor to running speed will having idle motor running in the wrong direction for the 3 phase motor will it damage the 3 phase motor or will the 3 phase motor just stop running once the idler motor is disconnected?

[@Wrighmachining]

im not a expert on the topic personally. I know they are in there a phase converter to smooth out the power and start the motor initially but that's as far as I can speak to. Wish I could help more. I think in the video where I show my shop I put in links to electricians that speak to the topics

[@taresainhouston4877]

In which video do you show how to make the foam shapes? Or cut the insulation foam to look so perfect?

[@Wrighmachining]

In a lot of my videos I show at the very beginning a quick snip of the cnc working on the casting. Would you like one on how they are made?

[@wantafastz28]

I’m shocked you got it to work that well. Old foundry man on KZbin would not be happy with your process lol. I’ve tried a smaller attempt of this but with brass and green sand and it failed both times. I don’t see how the drywall compound and dry sand holds it’s form, mine cracked after filling it half way from the weight. Good job.

[@Wrighmachining]

I was very skeptical at first as well. It seems to work well for aluminum but is more challenging for brass/bronze as I have found . I think it is a viscosity-to-heat thing. When I pour the aluminum it's 100c above the normal pouring temp to compensate for the cooling and keep the viscosity . In my head, I think about it like this. The aluminum is poured on top of the foam and gasses are created causing a higher pressure. the aluminum is literally sitting on the foam as it melts ( probably separated by a layer of gas and oxidized alu.) the can or basin holds aluminum and gives it more head pressure to hold the walls back . Since the resivour is filled the aluminium is free to flow down into the mold and replace the foam with metal. Once the metal is in the molten metal holds the walls back. Keep in mind the sand was compacted with the vibrator before pouring, so it doesn't want to move as much. Also the metal descent want to mix with the sand either kinda like oil and water. Now the aluminium rests on the foam and works it's way down In to the foam. driven by head pressure of the cup as it replaces it's self. Issues I have had -cup runs dry walls collapse . -alum, brass or bronze not hot enough walls calaps -not compacted enough walls collapse. -moving things to early to look at it things distort. Oh also The job of the plaster is not structural. It's only for surface finish Check out Kelly Coffield on YT he does motor parts for his trucks and he is the guru of the field right now. He however is not coating his parts with a different coating but in his older videos he does the drywall coating like I do.

[@wantafastz28]

@@Wrighmachining yeah, I’m surprised it isn’t more turbulent as well, I know mine are and require a vent. Keep up the cool projects!

[@Wrighmachining]

Thanks buddy. Let me know if you have any other questions, I will be here

[@glennooz]

did you mean rigidising ??

[@Wrighmachining]

Lol. Not sure if that is a word... Lol perhaps my poor English will start a trend :)

[@coevicman3685]

FANTASTIC!!!

[@Wrighmachining]

:) thx. I was a huge pour that one

[@puits-de-science]

Fantastic!

[@Wrighmachining]

Thanks andre, glad you liked it

[@roscoepatternworks3471]

Excellent

[@Wrighmachining]

Thanks Roscoe. 2 castings left till the end of the casting season

[@ChatterontheWire]

turned out sweet

[@Wrighmachining]

thanks

[@marciomila9264]

Op porque deu falhas na primeira peças

[@Wrighmachining]

Wasn't a failure 😎. It was expensive learning

[@stevesrt8]

Epic!

[@Wrighmachining]

Thanks man, learning a lot this season.