If you're referring to someone who puts pieces together, you might be thinking of:
Given your spelling, another guess could be that you're close to or thinking of "crafter," someone who makes or puts things together, often in a skilled or artistic way. crackmak
Unlicensed virtual instruments and digital audio workstation additions used by sound designers. If you're referring to someone who puts pieces
Patched versions of computer-aided design and 3D modeling programs. crackmak