Computer ATX Power Supply adaption

[Roberts_Clif]

If you have a bunch of ATX Power supply's and just want to use them up, you can connect your 3D Printer up like this.

Connect the ground together on lets say 2 ATX Powers supply's. You would then use the 1st power supply to control the Controller Card and Hot-end using the smaller Supply any ATX supply should work for the amount of current you will need.

Then you would connect the Largest Supply 20 Amp or better to the Hot Bed through an SSR-40 to control the Bed Temperature.

Using the controller drive the input of the SSR-40 and switch the 2nd power supply to the bed using the SSR-40 Outputs.
Now that it is figured out. You will take up more space and save about $10.00, but is can be done. Worth it maybe, maybe not.

But actually you do not even need to connect a ground between the two supplies.
I thought about doing this to remove the Bed and Hot-end PWM Spikes from the controller side of the power supply. Moving both Hot-end and Bed to an external supply.