This model is a printable version of the rainbird style drip irrigation stake. The center hole is sized for floraflex ¼ drip line. The orange stake displayed is dirty from being weather tested all summer, the stake and material seem to have held up well. These were printed in Elegoo PETG excluding the purple. 

I sprued together a build plate of 12 stakes to make printing easier. This print includes 4 extra caps to account for any that are lost, or do not print well. 

Printed at 0.2mm adaptive layers at 35% infill with 3 walls. no supports are needed, print flat side on build plate.