I know the pain of seeing a casting that's 95% of what it's supposed to be. I find that tilting the mould to about 10 degrees with the gate at the lowest point helps when casting plaques. The metal will fill more evenly and it prevents the brass running ahead of the main flow. I love the way you casually stick your hands in the flames. Regards, Preso
I watch Windy Hill Foundry his don’t always come out on the first try . I think you done good you’ve learned what you need to do to make them better next time . I find foundry work interesting. Thanks
Really good video, shame about the plaques but the ladybirds are lovely. I’d be interested to see the process behind the patterns next time you make one. Perhaps run a bit of braze in the hole?
Dear Jonesy A great video. For a first time effort, I thought things went pretty well. I'm sure your modifications to the plaque mould will cure the problems. You noted in your "post pouring" discussion that the plaque will be painted. If this is the case could you use something like "J B Weld" a metal impregnated epoxy, as body filler to plug the hole? I have used it as "machinable body filler" when restoring the standard on a full sized antique vertical (launch) steam engine. Given the metal content, while the finished product is readily sand-able and can be machined, it is much more solid than any non metal containing filler material. Best wishes form Canada Paul
I feel like your gating is way over complicated. I would feed the lady birds from the bottom. Try putting a necked down riser in the center of your boss and just set the sprue 1” or less from your pattern with a short direct gate. If you have issues with metal forcing into the sand make a thinner cope ( weight it ) and use a clay wash to precent metal penetration. You might use a safer set up for handling the crucible, I have seen an awful lot of sever burns from molten metal.
I know the pain of seeing a casting that's 95% of what it's supposed to be. I find that tilting the mould to about 10 degrees with the gate at the lowest point helps when casting plaques. The metal will fill more evenly and it prevents the brass running ahead of the main flow. I love the way you casually stick your hands in the flames.
Regards, Preso
Hey Preso, love your videos. Casting is one of the most frustrating but also rewarding things to do, as you know! Thanks for stopping by!
Love the use of coal.
i think this is a good result,, the first plaque is worth keeping !👍👍👍👍👍
Practice makes perfect! Interesting video, thanks!
very nice well presented video, totally captivating, very enjoyable, thank you
I watch Windy Hill Foundry his don’t always come out on the first try . I think you done good you’ve learned what you need to do to make them better next time . I find foundry work interesting. Thanks
Fantastic effort!!!!!
Really good video, shame about the plaques but the ladybirds are lovely. I’d be interested to see the process behind the patterns next time you make one. Perhaps run a bit of braze in the hole?
Thanks, brazing is a great option..
Hi, would it be helpful to incline the mold a bit away from the inlet when pouring it and adding a sprew at the lower half.
Rich
Agreed, that would definitely improve the flow
Dear Jonesy
A great video. For a first time effort, I thought things went pretty well. I'm sure your modifications to the plaque mould will cure the problems. You noted in your "post pouring" discussion that the plaque will be painted. If this is the case could you use something like "J B Weld" a metal impregnated epoxy, as body filler to plug the hole? I have used it as "machinable body filler" when restoring the standard on a full sized antique vertical (launch) steam engine. Given the metal content, while the finished product is readily sand-able and can be machined, it is much more solid than any non metal containing filler material.
Best wishes form Canada
Paul
Thanks Paul. Yeah, I plan to paint the 'background' and then shine up the letters, so a good filler would definitely work!
If you’re going to paint them, you could fill the void in the good plaque with lead or even body filler.
Fair Play Chap... LadyBug Door Knockers? ... Braze The Hole Hole Up And Hand File ...
peace
Your crucible. Is that clay graphite or silicon carbide?
I'm afraid I have no idea, I picked it up second hand years ago and it's been through quite a few melts.
Why not drill a hole in the fault then turn a plug of brass, solder it in and file it flush?
I can get you loads of brass cartridges if you ever need a supply of brass! No idea how that would cast.
I don't believe you used up all of your luck. You still had some left for the ladybirds.
As for the plaques, next time they will be spot on. For sure.
The ladybirds were a nice suprise!
Shame about the name plaques. but the ladybirds look really nice. 👍
I feel like your gating is way over complicated.
I would feed the lady birds from the bottom.
Try putting a necked down riser in the center of your boss and just set the sprue 1” or less from your pattern with a short direct gate.
If you have issues with metal forcing into the sand make a thinner cope ( weight it ) and use a clay wash to precent metal penetration.
You might use a safer set up for handling the crucible, I have seen an awful lot of sever burns from molten metal.
OMG. Get some gloves, man.