Summary

This is a customizeable heat tower with GCODE generation.
Original taken from
www.thingiverse.com/thing:3607378
The Simplify3d and Cura settings description is taken from
www.thingiverse.com/thing:4314755/remixes

When opening the file in openscad on the Konsole GCODE is written like this (when using the default settings)
/
{if layer_z>=0.5}{if layer_z<5.5} M104 S195 M109 S195{endif}{endif}
{if layer_z>=5.5}{if layer_z<10.5} M104 S200 M109 S200{endif}{endif}
{if layer_z>=10.5}{if layer_z<15.5} M104 S205 M109 S205{endif}{endif}
{if layer_z>=15.5}{if layer_z<20.5} M104 S210 M109 S210{endif}{endif}
{if layer_z>=20.5}{if layer_z<25.5} M104 S215 M109 S215{endif}{endif}
/

This has to added to the slicer (slizer, prusaSlizer, superSlizer, ...)
at 'printer Settings' BEFORE_LAYER_CHANGE

In Simplify3d you can go to the Scripts tab
, and add the generated GCODE to the Layer Change Script.
(i do not use Simplify3d, please tell me if it is working)

In Cura
Under Extensions, click Post Processing, and select 'Modify G-Code'.
The script you want is ChangeAtZ, and you'll need to add one for each layer needed.
(i do not use Cura, please tell me if it is working)