Watermark Soil Sensor Thermistor Housing

prusaprinters

This is a small housing that fits cleanly on the top of a Watermark soil tension probe.  The intent of which is to hold a temperature sensor at approx. the same depth as the soil moisture reading without having to drive two separate sensors into the ground.The bottom of the housing has nearly a press fit with the Watermark sensor, and the top of the housing is threaded ¼ NPT to take a standard cable gland.  Chasing the threads with a ¼-18 tap to clear out the print artifacts probably wouldn't hurt (I didn't, but it took a little persuasion to get it started in there; after running it in and out once, it threaded fine).I've also included a straight walled version of the housing that just has a 7/16" hole (in the event you want to actually tap the threads or don't want threads).The ID of the bottom hole and the OD of the top are such that they do fit together (so they could be stacked for whatever reason)For printing:Run up the walls (such that there is no infill), I used a 0.15mm layer height, due the fine detail of the threadsFlip the model upside down (so the top/small part is on the bottom).  This makes it so the only areas needing support are on the outside of the model.  I used organic supports and painted them in for the overhang.I used PETG so that it would be more stable when exposed to the outdoors