I recently purchased this 3D printer from RobotShop, assembled it and wired it up as per the instructions, and powered it on for the first time.
For a while it seemed to be working fine. I went through the initial diagnostic check (navigated the LCD menu to Debugging -> Assembly Check) where it checks out the axis limit switches, stepper motors and heating and everything seemed to be working fine. It properly detected the limit switches, moved the motors, heated everything and sensed the temperatures correctly, etc. I did this a couple of times.
Then while I was looking around at what else was in the LCD interface it suddenly went dark, and then went into a state where the power supply would pulse on very briefly then immediately cut out again, over and over. Every time it pulses on, the power supply fan and control panel LCD backlight both come on at the same time, but then cut out again almost immediately (after maybe a quarter of a second or so). It stays dark for a few seconds and then pulses on again with the same results, over and over.
I unplugged it and left it for a while, but it still does the same thing whenever I give it power.
It seems to me that this is probably a problem with the power supply. I’m pretty certain I’ve got everything wired correctly, and it did seem to be working fine for a while (all the tests succeeded). Do I just need to get a new power supply, or is there something else I can check?
