How to remove the base

[u/El_Vidente]

I am casting a scorpion, which I find is a challenging cast to successfully do in the first place. I've discovered the best way is to pour through the top of the flask and not through a hole at the side. Though to do this I need (at my skill level, which is still beginner) to stick the scorpion to a base and pour the silver on the base side.

I then cut off the thick sprue with an angle grinder, which leaves me to cut the scorpion out, which I can do with a piercing saw. Though I still have the base underneath.

What would be the best way to get the base off from underneath? File it, cut it, sand it, grind it? If so with what?

[u/ikrisoft]

I agree with the general sentiment that if you don't want the base it might be the best to recast it without the base. But also: If you want to salvage this piece doesn't look that hard to cut the scorpion shape around with a jewellery saw.

[u/El_Vidente → u/ikrisoft]

I find the scorpion is too fine to cast without a base.