This casting is 60cm (2 feet) long, and has 4 cores, it needs to be dead flat, so I can't live with any shrinkage. A liberal coating of talc to make sure everything separates, I'd hate to do all that work and have the whole thing stick together like a previous smaller casting did.
It's all rammed up, with a tapered sprue, and some pretty big risers over the ends and over the webbing.
It separated cleanly, with the pattern stuck in the cope. Not a huge surprise, and not a problem.
I cut the gates, and the pattern came out cleanly, I used the split patterns the I made the cores with to make sure the cores were placed correctly.
And now it's all closed up, and waiting for the pour.
Cores in place ✓
Gates Cut ✓
Pouring Basin ✓
Clamps Locked ✓
I cut the gates, and the pattern came out cleanly, I used the split patterns the I made the cores with to make sure the cores were placed correctly.
And now it's all closed up, and waiting for the pour.
Cores in place ✓
Gates Cut ✓
Pouring Basin ✓
Clamps Locked ✓
I know that I have left very little room around the pattern, I have no more sand, I was left with about 2 mugs full of sand when I finished ramming this up. I also know that my pouring spout and center riser are too close to the flask. It will catch fire. I'll chuck some sand over it. I hope I only need to pour this once. If I mess up, then by the time I chuck out the burnt sand, I won't have enough left for another try so I'll have to shell out and buy another bag.
Wish me luck
Good luck mate, can't wait to see how it turns out! I am also on the Gingery metalwork shop "path", but just started with the first book.
ReplyDeleteThanks, I'm a little bit apprehensive about the bigger pour
DeleteI am also very interested in seing this project to the end. Keep us posted
ReplyDelete