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How to calibrate E-steps on Ender 3 Pro 3D Printer - actually, this will work for any 3D printer with a Bowden Tube.

I just installed a dual extruder on my Ender 3 Pro and found that my E-steps were off, this is the follow up to that install and how I easily calibrated the dual extruder.

E-Steps can be a pain sometimes to diagnose. You might sometimes think it's a clogged nozzle or filament issue or heck even a hotend issue. Then, low and behold, after painstakingly checking all those things, you find it was an extruder issue all along. This is a super-easy way to figure out what your E-Steps are and how to properly calibrate your e-steps for your 3D printer.

So many tutorials out there make you connect your computer and use some type of controller and it can be a pain. Not to mention if you have an Apple computer the software isn't supported... (me) So fear not. Just follow this tutorial and your e-steps will be properly calibrated without pulling out any hair or crying. (unless your crying that you haven't done this sooner)

** Disclaimer**
This is for finding e-steps and calibrating them if you only have a 3D printer with a bowden tube. this tutorial will not work if you have a direct drive.