Glass thermometer holder

I needed a way to hold a glass thermometer in a metal flask without it touching the sides. This is to calibrate /check thermometers in a lab.It clips onto the lip of the flask and secures against the thread. There is a simple spring to help achive a tight fit but still allows for teh clip to be removed easily. Adjust the diameter of the hole (negative part) so that it has a friction fit. Otherwise secure an elastic band around the thermometer to stop it from falling through.Able to have several in the same flask to compare thermometers. Prints best with a 0.2mm nozzle as it is a small model that doen't need strength. I printed in PLA as I only use it for ice point checks - but consider using PETG if you need it for higher temperatures.