Simple PA test tower for belt printers. It should work for IR3 and CR30.

Print in vase mode, one shell, zero top and bottom. In your slicer, enable a PAUSE at about 23mm high. Then, start your PA test after that point.

Here is some great information about the tower.

https://ellis3dp.com/Print-Tuning-Guide/articles/pressure_linear_advance/tower_method.html

After the print has *already started**, enter the following command:

• (Direct Drive) TUNING_TOWER COMMAND=SET_PRESSURE_ADVANCE PARAMETER=ADVANCE START=0 FACTOR=.0025
• (Bowden) TUNING_TOWER COMMAND=SET_PRESSURE_ADVANCE PARAMETER=ADVANCE START=0 FACTOR=.025