I modeled this in Tinkercad. It is now on version 2.0. The ONLY spot that may need supports is the very bottom of the print. I have printed it on my aNet a8 and Ultimaker 2 Extended without supports with no issues. Test fit your charging tip fit before jamming it down inside the holder. It should slide in easily. There is a place for the cable to come out the bottom. Run your cable through the bottom first, attach the charging adapter, check for fitment. Should not be tight but not be loose either. Scale the print by .2% increments to adjust. All printers are different. Hope you like and will consider tipping me to support my 3D printing designs. Thanks!