The author remixed this model.
Changes:
- Added 0,5mm height and 0,5mm depth of the holes, so the probes really fit (should have made it 1mm, but used a drill to fix that afterwards :D)
- Improved holes to make the probes stick in the case: round holes + step for easy insertion
The holes need to be re-drilled with a 2.7mm drill afterwards. Use compressed air to clean it afterwards.
Note: The probes have some variation in thinkness. Thus, not each probe fits perfectly in each hole. Do NOT push them in with foce or you'll risk ripping off the top part when pulling out again, as I did! Just swap two probes and it will work.