Adapted the great Quick Tool made by Jón from Proper Printing, to the Alfawise U30.
Printed using PETG, perfectly. Had to fill the screw holes with a thin layer of 0.2mm to be able to print them in the right place on the first layer (bad adhesion). This thin layer can be easily removed afterwards.
I will use 2x 6mm M3 brass standoff nuts to fix the hotend, but if you have some 25mm M3 screws you can use the "support" (x2) parts. It's a kind of spacer, similar to the one originaly supported the hotend.
I used the lever from the original thing.
No support needed if printed on the planar side.