Hi,
Is there any 3d enclosure design available for AS7265x? If not, can you please point me in the right direction.
Thanks
Not for that one 
You can sue the Eagle files https://cdn.sparkfun.com/assets/8/6/1/4 … S7265x.zip (free program) and export a STEP/STL, then build an enclosure in Fusion360 or similar
I have tried to connect 1 mm tubes to the three sensors, but unfortunately the sensor does not work, it is fond in an I2C scanner but all values are solely zeros. I use it with an seeeduino XIAO.