Because of the properties of scPLA crystals that melt faster. If there are no suitable conditions will cause the scPLA crystals and solid mounts, engine very fast.
Because the properties of crystals scPLA to melt faster. If conditions are not right to make scPLA crystals were no solids stuck at a very fast machine.
Because of the properties of scPLA to crystallization speed when melted. If improper conditions will make scPLA crystallization and ice on the machine fast.