21 x 5mm parametric led matrix —

Founded 21 x 5mm parametric led matrix models & stl files for printing
5mm LED Trimming Jig
Guido Vermicelli
Led Light Sign
Maximulli
Matrix frame
Razzer09
Matrix Voice Board
WhisperHill
21 Medal
INeedOneDesigns
XMOD for Prusa I3 MK3
RobertoColucci_3D