Esteps Helper Filament Holder

thingiverse

I always struggle with keeping the filament perfectly straight while measuring esteps, so I created a holder that makes it easy to keep the filament straight during measurement. It measures 100mm from the backstop to the beginning of the notch line as shown in the pictures. I included two versions. 1. The backstop is aligned with the end of the tunnel for the filament. You cut the filament, then slide it in and it will rest even with where you set your calipers. 2. The tunnel extends all the way through. I use this on my direct drive by placing it on top of my extruder where the filament enters. I mark a line on the filament from the backstop of the bowden holder. Then I extrude 100mm and observe how far down the line goes.