I Printed this PLA 190/60 on a glass bed with just a wiff of hairspray.
1st layer slow speed, no fan.
2nd layer go for it
The original file came from thingiverse but after printing it i found it didn't "sit" at the correct height and it was connected to the fan too loose, so i modified it to make it fit better (to my needs)
MEASUREMENTS : Underside of the duct is 23.5 mm lower than the underside of the FAN it connects to.(not counting the bit that goes in the fan) The bit that goes in the fan was enlarged a bit to make it a more solid connection (fits in hole 17x13 mm).
Zero your Z axis and measure the distance like in the photo to see if this duct will fit your printer. anything from 25 mm till 28 mm should be ok without the need to modify the file, leaving approx. 3 to 7 mm clearance with your project.
measure from the top of sheet of glass till underside of fan where duct connects