[BUG] Polargraph with X & Y axes (no Z axis) fails to compile

[jbubik]

Did you test the latest bugfix-2.1.x code?

Yes, and the problem still exists.

Bug Description

I am building a polargraph (Makelangelo-inspired). The template for a polargraph in Marlin defines X & Y & Z axes, but actually never uses the Z axis. Pen up/down is done by a servo (controlled by G code M280). So I tried to completely disable Z axis handling in my build. Some source files expect the Z_AXIS to always be defined and the compiler fails.

I identified those places (well, only in modules that I compiled in) and fixed them. PR will follow.

Bug Timeline

Don't know, it's my first Marlin ever

Expected behavior

Marlin compile properly with only X & Y axes.

Actual behavior

Compile fails due to undefined Z axis in:
Marlin/src/inc/SanityCheck.h
Marlin/src/lcd/HD44780/marlinui_HD44780.cpp
Marlin/src/lcd/menu/menu_advanced.cpp
Marlin/src/libs/nozzle.cpp
Marlin/src/module/polargraph.cpp

Steps to Reproduce

1. Comment-out Z_DRIVER_TYPE in Configuration.h (or use my config ZIP)
2. Try to compile - it fails

Version of Marlin Firmware

bugfix-2.1.x

Printer model

Makelangelo (self-built clone)

Electronics

mega2560 + RAMPS 1.4 + RepRapDiscount Smart Controller + A4988

Add-ons

none

Bed Leveling

None

Your Slicer

None

Host Software

None

Don't forget to include

• A ZIP file containing your Configuration.h and Configuration_adv.h.

Additional information & file uploads

Configuration.zip

[ellensp]

Has bee merged, closing

[github-actions]

This issue has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.