LCD Menu

LCD Menu
The Rostock Max provides an LCD Display for both status information and manual control. The LCD Display also includes an SD card adapter for printing while not connected directly to your PC, a simple buzzer, a reset button and a turn and click encoder for accessing the menu system built into the Repetier firmware. Note that this Wiki page covers only the Repetier firmware, not Marlin or any other alternative firmware. It is also worth noting that I am documenting only the default English menu. Other language choices are available and the menu text can be edited if you choose to modify your firmware.

When the printer is first switched on, after initializing the LCD screen will display the following page:

! 20.1/  0ºB 19/  0º Z: 0.00 Mul:100 Buf: 0 Printer Ready.

Note that I have used an exclamation point to replace a graphical symbol used on the actual display. That symbol represents the Hot End temperature. The next two numbers indicate the current Hot End temperature and, after the slash, the target temperature the printer has been commanded to provide. The capital B represents the Bed temperature and is again followed by two numbers with the same meaning - current and commanded target temperature. In the example above, both components are idle and showing only the ambient temperature.

The second line represents the current Z axis value. Note that this value is meaningless unless a G28 command has been issued to Home the printer first. Print jobs routinely do this, so this reading will be accurate during printing as well as any other time the printer has been Homed.

The third line displays two values, the current Speed Multiplier and the current Buffer length.

The final line gives the current printer status. In this example, the printer is idle and is thus ready.

What is not immediately obvious is that there are other display and menu screens lurking beneath the surface, accessible by pushing the control knob in. The knob is dual-purpose and serves as both a rotary selector and a clickable select function. When clicked, the following initial menu should appear:

>Back ^ Quick Settings   -> Position         -> Extruder         -> Fan Speed        -> SD Card          -> Debugging        -> Configuration    ->

I have again used the ^ symbol to represent a graphical character on the display, as well as the -> combination which represents a graphical arrowhead on the display. The presence of that arrowhead at the right margin indicates that a sub-menu will appear if the menu option is selected. The lack of an arrowhead indicates a command that will occur immediately when clicked, or a data entry field.

Rotate the knob to select items from the menu, then push the knob to "click" them. Let's look at each of the menus in turn...

Quick Settings

Selecting the Quick Settings menu option will bring up the following display:

>Back ^ Home All Preheat PLA Preheat ABS Speed Mult:100% Flow Mult :100%<BR> Cooldown<BR> Set to Origin<BR> Disable Stepper<BR>