Extruder step calibration ruler
thingiverse
This ruler easily attaches to a bowden tube end and makes calibration of e-steps easier. Attach this to the incoming bowden tube going into your extruder. Mark the filament with a sharpie at the end of the ruler, extract 100mm filament and measure the distance with your digital calipers. There are 10mm lines on the ruler for eyeballing and checking extrusions.
Download Model from thingiverse
With this file you will be able to print Extruder step calibration ruler with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Extruder step calibration ruler.