I know this will sound very strange indeed, but I have a surplus of brazing rods that I will never use. They are Rothenberger Rolot S2, 93.4% cu and 6.3 cu, 2mm square and 500mm long.
I am thinking of melting them down and turning them into 18mm rod of different lengths, 100mm max. Once done these will be going in the lathe for some turning. Is there an easy and cheap way of doing this, what should I use to make a very simple and quick mould? I have made a couple of moulds for lead before from aluminium and then just using a turbotorch to do the melting, but obviously it would have to be made out of steel as the ali wouldn't take the heat.
Is it worthwhile trying this out or would I just be better to try and sell them and use the pennies to buy what I want? I have two full boxes which retail at about £45 each so I could probably get about £35 for each but postage might be a bit expensive.
Any ideas from the whacky metallurgists would be greatly appreciated

daz