Had sucess today. Still using the elecric furnace with linited capacity. I like the challange! New split pattern. Core is placed vertical in the...
Pattern would be soild and split on the parting line. Core placed vertical in a core print in the drag.
Ben, The dimentions are not too critical as there is a machining allowance for bore and outer surfaces. i.e. it will be machined all over. I think...
I think it would be interesting to try it this way Foundry rat. I'll make another pattern and try it.
Wher have the pics gone? There were here when I looked earlier.
I do usualy use much larger feeders and risers. The metal was melted in my small elecric furnace and what you see is the capacity of it. I...
Metlerskelter, so a very short gate with a wide entry. You are pouring into a different part of the mould?
I cut the part in half and all is good apart from that defect. Foundry Rat, any chance of a sketch to clarify your advice? [ATTACH]
Here's a pic of my 3D printed pattern. The part is the decrotive furrule on the legs of a grand piano. [ATTACH]
Thank you all for your suggestions, I will have another go taking these into account.
Can anyone advise what the issue is here. I have made two castings and both have this same defect. Looks OK on the outside but when the gate is...
THash All you can do is heat to red and let it cool. I would expect it be annealed then.
I have done a lot of model boiler work in copper. You cannot harden copper by quenching. it will always be soft after heating to red wether it's...
I don't see the point of such long lugs on the corners. My own version has sides 15mm thick and gives an adiquate bolting face of 19 mm and much...
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