Ok thats brilliant. I could never figure out what a pattern box for a propeller would look like I figured it would be very complicated due to the parting line issue being three-dimensional. I was confused until the very end and then it suddenly made perfect sense. Bravo sir, very ingenious. The internet was made for things like this and people like you.
It takes a lot of study to understand how the parting line works on a propeller. If you want to have a look at the parting line on the fans you use on a hot summers day, they are still there after manufacturing.
The first time I saw this was a year ago and I was really confused on the third piece or cheek in the flask. Now that Ive actually rammed and poured a hundred times since then, I now understand why you gated it like that. It makes perfect sense to me now, thanks for sharing
That is quite an impressive mold there. As i first started watching i was trying to think of how i would accomplish it, and i was way off the mark. Glad to see someone passing on some great knowledge to others. Keep the videos coming Mark
A very very special craft all of its own And I can see it taking a lot of tries to reach one's expectations of a great piece of work. Well presented. Thanks .
I don't have any hands on experience with this but from watching a lot of experienced guys do this, they recommend to use a wedge type mallet when compacting the sand for intricate areas. They say the wedge also forces the sand to move and fill in sideways to get under parts and into crevices where it normally wouldn't if you just compact it from the top.
estare al tanto, con ese proyecto, del hierro fundido, porque tengo en mente realizar un molde con este material, estaré muchisimo agradecido, MAESTRO.
Thank you sir ! I was wondering how to achieve the process and found your video...That said, it will require much skill if someone like me wants to do the same think!! 😅😅
Very informative video, What type of casting sand did you use here? I am really strugling to get the sand like the sand here. My sand does not hold shape as well.
Thanks for the great videos, About how long would it take to melt brass in your simple propane furnace, And did you make any more improvements to the propane torch,
Thanks, I will give my burner the boot and make the one you posted , It's takes 2hrs, to melt about 10 Kilos of brass with my present burner, Could you tell me where to buy the heat proof wool, And thanks again for sharing your knowledge,
How it works (the way I got it) 1.You put the propeller in the first pan 2. Pour on white stuff on one side so it does not stick with propeller. 3. Take the second pan and pour sand on it (this sticks with the sand on bottom sand to make on piece). 4. Do the same thing on the other side of th propeller. Expose the propereller and put white stuff on. 5. Put the 3rd pan on it and stick it with more stand. This sand stiches with the bottom sand and form one piece. 6. Now remove the other pand and remove the propeller carefully. Put back the other pan which creatas a mould. 7. Pour in molten iron. I still dont know why the iron pouring not damage the sand mould. My interpretation might not be correct but it is close.
luckygen1001 that is the trick! And it is a trick. Getting the right level of compaction without ramming too tight or loose and needing different levels of compaction in one mould takes many many practices to get right. So many techniques like flame scorching to graphite dusting etc.. just got to keep practicing!
