Can a stepper motor be used as an extruder?

Can a stepper motor be used as an extruder?

I am using Repetier-Firmware and can drive the extruder (stepper motor) using the E0 (RAMPS 1.4). Now for my application, I need to make sure that the extruder is in home position before it starts to drive for the very first time. I am trying to use a switch to connect to the end stop and perform this homing operation.

When do you use a Bowden driven extruder?

When operating direct or Bowden driven extruder setups, you know (or you can measure or find out experimentally) the distance that the filament has to travel from extruder entry to hot end (e.g. to load new filament).

When to use GCode G92 E0 in an extruder?

When a new print starts you usually reverse the retraction at temperature and extrude some extra filament to prime the nozzle to counteract oozed out filament for instance. At that point, the nozzle is primed and the gcode G92 E0 is then used to tell the extruder this is the start at zero length, sort of the home position of the filament.

What’s the purpose of homing a stepper motor?

The purpose of homing your axes is to set their 0 position in space. This then means that any subsequent movements will be relative to these 0 positions and assuming the motors skip no steps should allow accurate positioning of the head inside the build volume throughout the print.

How does a switching extruder work on a Marlin?

A Switching Extruder is a dual extruder that uses a single stepper motor to drive two filaments, but only one at a time. The servo is used to switch the side of the extruder that will drive the filament. The E motor also reverses direction for the second filament.

How many stepper motors do you need on a Marlin?

By default Marlin will assume separate nozzles all moving together on a single carriage. If you have a single nozzle, a switching extruder, a mixing extruder, or dual X carriages, specify that below. This value should be set to the total number of E stepper motors on the machine, even if there’s only a single nozzle.