I'm currently building a case that contains the PSUs and control boards and stuff to power up two 3D printers @24V.

This is a shield/plate that is used to be mounted on the bottm/side of the box that leads every kind of connector that is needed for the printers to this single shield.

Easy plugging and unplugging of the printers was the goal while designing this shield without scrabbling around inside the control box.

It is designed to use the following types of connectors:
T-Connectors
Dupont Connectors
JST-XH Connectors

Please take a look at the scetch I uploaded for clearance which connector is used for what.

As described in the sketch I used the following connectors for the shield:

Nylon T-connectors (like this: http://www.hobbyking.com/hobbyking/store/__30685__Nylon_T_Connectors_10_Pairs_20pc_US_Warehouse_.html)
for each of the DC Currents like Heatbed, Extruder Heater

JST-XH 3S Connectors (like this: http://www.ebay.de/itm/Balancer-Verlangerung-fur-3S-11-1V-Lipo-JST-XH-20cm-Lipo-Kabel-Akku-/111610320792?pt=LH_DefaultDomain_77&hash=item19fc7e5798)
for connecting the stepper motors

Dupont Connectos (3P, 2P) (like this: http://www.ebay.de/itm/100Stk-3P-Dupont-Jumper-Wire-Kabel-Stecker-Pin-Connector-2-54mm-Pitch-Weiblich-/181440433313?pt=LH_DefaultDomain_77&hash=item2a3eb14ca1)
to connect Termistors, LEDs, Fans and Endstops

AC Plug (like this: http://www.ebay.de/itm/190942549649?_trksid=p2057872.m2749.l2649&var=490202350541)