Metal Casting Zone Info Blog

robotpredator8:

hey my ford boy why don’t you try casting alumium bicycle

robertsulley:

Another excellent video Myfordboy! How long did it take from starting the moulds to having the 10 lined up? It always amazes me that I watch the slag appear to be poured into the mould, but the finished item always turns out nice!

myfordboy:

@CornishMiner I put a riser on the bigger ones. If the pattern is smaller than the feeder it doesn’t get one.

BoingotheClown:

1920s style racing cars! Cool!

gblpst81:

@myfordboy It seems that would be the case. There’s probably a magic ratio of greensand volume-to-pour volume that can’t be exceeded. That racecar casting was nice and small in comparison to the size of the flask, but even still the parting line left on the casting looked like it tryed to separate the two halves of the mould. I’d love to see the finished product once you’re done. Do you know any details about pressure casting?

fly2000jtb:

it is a trip how dry your sand looks but it works so well! we love the standoff pouring tubes you make as well. if that is what they are called we need to rewatch so we can get the name right hahahaa cool video as usual! joseph t fly2000jtb

coriander2:

My wife asks me, ” don’t you get fed up watching him make sand boxes and pour metal in?” Ha,lol. No,never

myfordboy:

@gblpst81 First time I have tried this method. If it were a large casting I think the pressure of the metal whoud collaps the sand unless the mould was a lot larger than the casting.

myfordboy:

@aleks138 Sand is pretty firm. I have never had any fall out.

Axbent:

Did the 6th come out right too?

gblpst81:

How can one determine the size limit for casting something in a snap flask? I’m guessing most of your larger castings run the risk of separating and possibly fracturing during the pour. Something small like this works well, but what’s the limit? Great video, as usual.