So I am using the lost-wax casting to make my aluminium dog’s head. My first crack at making the wax cast was ‘okay’ but there were bubbles and a lopped off an ear tip. I have had another go.
First time around I just used a big (paraffin) wax candle – melted it down and poured in it. I have done some reading around and proper-people use casting wax, which you can buy (ug!). Not sure what makes it different to other waxes. I came across an Instructable that gave a recipe for DIY casting wax: 10 parts candle wax, 2 parts hot glue gun ammo and a coloured wax crayon (?).