MedTrum Sensor Cover

I have been diabetic for a year and am a beginner at drawing.
Since I got this MedTrum insulin pump in January I had started thinking about printing a sensor cover, I hadn't found anything on the internet, so I started trying to take the measurements myself, but it was difficult because the TouchCare sensor has strange shapes, taken a pencil and I traced the shape, then I took a picture and transferred it to the drawing program.

After drawing it I printed it, around the 7th print, by scaling the dimensions a little I had almost found the right size and I had discovered that with normal PLA the dimensions were almost right, that instead PLA+ gave me larger dimensions because the material melts at almost a higher temperature than normal PLA, so if you use a filament that exceeds 205°C you better pay attention to thermal expansion.

I'm a beginner after all, I must have done something wrong or you might not like something, change it
GOOD PRESS