Why does my figure have gaps where it fits together

I was asked this Question about a metal figure a while back that a fellow gamer asked me to repair why does my figure have gaps where it fits together ?So here is an explanation first off there is more than one reason that can cause this to occur remember the medium for these figures is liquid metal in excess of 500 degrees Fahrenheit or 260 degrees Celsiusonce metal cools it can warp slightly especially with thick walled miniatures ( Remember when welding thick steel as it cools it warps slightly ) you can angle or clamp parts when welding to help gepensate for this effect liquid metal does not have this luxury Some other reasons are poor mold quality once a mold is past its prime it should be discarded but a lot of the times they are not results are poor detail, smudged details, heavy or thick mold lines, excessive flashing etceven more reasons mold clamped incorrectly or not lined up clamps squeezing the mold to tightly distorting the mold cavity or not tight enough poorly made molds a lot of people try to replicate miniatures and that's fine but most do not realize how much patience time effort and money for equipment and supplies actually goes into making a proper mold.Hence poor detail metal miniatures are a lot like resin castings you still have to trim putty shape sand and paint some of them to make them look the way you want them to or you can buy a pre made and painted model but where would the acgeplishment or fun be in that?