Power Supply

For the power supply, I wanted something small that I could integrate into the frame if I wanted too, efficient, and over rated in power for continuous duty, as it may take 30 or 40 hours to complete very complex builds with a lot of parts.  I'm also powering the bed with it.  This is why I choose a 30amp power supply, and it's pretty inexpensive at under $35 shipped.

This is electricity, make sure that you know what your doing.

Step 1, make sure that the power supply is set for 110 Volts (for the US).  In this case it was set for 220, so I changed it to this.  The slider went to the left, and 115V was displayed as as this picture shows.

 

Step 2, Connect a power cord.  Use a DVM (Digital Volt Meter) and test continuity of each of the wires to make sure you know where ground, neutral and hot go.  I used this site to help me.

Step 3, Change the DVM to DC volts, and clamp it in like this.

Let it stay on for about 5 minutes or so to stabalize, and adjust the pot (next  to the green LED) until you get 12.00 Volts.

Lastly hook up your Heatbed.  I was able to get from 20c to 80c in 3 minutes.  And it was still climbing.  The voltage stayed very stable during this test.