I ended up pulling D1, which tested fine, and powering the arduino from the 5v vsb on the atx on the 5v VCC. I have the green wire on the atx going to the PS-ON pin and as of right now I can run the printer without the pc attached which is awesome but now I am trying to configure it so that the arduino can control the psu standby/soft off state so that I can shut down the printer and psu while arby Rav0506 - RAMPS Electronics
I ended up removing D1 and wiring the 5V VCC pin to the 5v VSB output (Purple wire) from my power supply and then PS-ON pin to the green wire on the atx connector. It is my understanding that wiring it that way will allow the firmware to turn the PSU on and off with the M80 and M81 g-code commands while keeping the arduino/LCD powered on the standby VSB, however my LCD will only power on if the Pby Rav0506 - RAMPS Electronics
I have D1 installed and if I unplug the USB the arduino shuts down. Any idea on what to check next?by Rav0506 - RAMPS Electronics
I was actually coming here for this very same reason. I have the reprapdiscount.com full graphic smart controller and can not get power to the display/arduino unless the USB is connected. I am running ramps 1.4 and I have the D1 diode installed and have verified it's orientation. I am trying to run the unit without a pc but since the arduino isn't apparently receiving power from the 12v I have toby Rav0506 - RAMPS Electronics
Try dropping your XY speeds down to about 500 (I did this in the firmware), I was having a similar issue and this resolved it for me. Something about the steppers not being able to keep up with the acceleration and skipping steps. I just got my printer Tuesday and started printing on Friday and had quite a few bugs to workout. Now my prints are better quality than the plastics the kit came with.by Rav0506 - General