PCB for Extruder head tool

Hi.
I designed a PCB to unify the extruder connections The idea is can connect and disconnect more easy the extruder for change the extruder like a tool head and put a laser head or other tool. You can see more details in the project that I have posted:


https://www.pcbway.com/project/share...d_printer.html


Do you think it is necessary to modify something to improve the design before considering it definitive? I design all for 12V and 24V systems thinking in the necessary current.
I put two pictures of the design:
Attachment 11352
Attachment 11353
Thank you