In printing PETG On the ender three pro I found a variety of settings and examples and temperatures all of which are great suggestions and will leave me in the direction that I need to go however none of them are exact to what I need.
So I started with printing the calibration cube and found the X and Y axis are fine, however the Z axis seems to have some extra squish to it meaning that it’s about 0.3 mm too short, and those first few layers seem to bow outwards
![](https://tacticalware.com/wp-content/uploads/2020/06/121ABE38-50C4-40B5-BD76-95F2BE0A8490-1024x378.jpeg)
Down my settings are as follows
PETG – AmazonBasics PETG Black
Nozzle – 250C
Bed – 80C
Printer – Ender 3 Pro
after a bit of measuring and fine-tuning I found that my bed temperature was too high so the solution was very simple.
Change the bed temperature to 60C and re-print
Problem solved and my next cube had the perfect dimensions
![](https://tacticalware.com/wp-content/uploads/2020/06/4A054DD6-5C80-41A0-B453-2256CB1AC545-1024x661.jpeg)