Extruder step calibration aid

prusaprinters

<p>This ruler easily attaches to a bowden tube end and makes calibration of e-steps easier.</p><p>Attach this to the incoming bowden tube going into your extruder. Mark the filament with a sharpie at the end of the ruler on the right indent, extract 100mm filament, and measure the distance with your digital calipers positioned on the lefthand indent. There are 10mm lines on the ruler for eyeballing and checking extrusions.&nbsp;</p><p>This version is left-handed, mirror it to make it right-handed so that you can hold the calipers with the dominant hand against the preferred site.</p>