I recently began to work with bridge nylon filament on my Taz 5. I haven’t made any hardware modifications, nor have I updated the firmware. I’m starting to take tolerances into account, so I decided I would look at proper calibration. I also understand that a nylon filament might not be the best to calibrate with, however, I will be predominantly printing in nylon, so it seems sensible to calibrate for it.
Calibrating the extruder is quite frustrating and tweaking the Esteps seems completely arbitrary on my machine. I’ve been following the OHAI guide. My Esteps was set to 860 by default. For the following results, I ran 100mm length and 100 mm/m speed five times, then took the average. At an Esteps of 860, it was typically under-extruding by 55-60mm. At an Esteps of 760, it under-extruded by 50mm. At an Esteps of 660, it under-extruded by 50mm.
Since that wasn’t making much of a difference, I went in the other direction. At an Esteps of 1060, it under-extruded by 50mm on average. I’ve even cranked it to an Esteps as high as 1460 (under by 100mm) and as low as 460 (under by 55mm) and my results got me no closer to a calibration. Every time it would under-extrude. I’ve also raised and lowered the extrusion speed and I’m still getting wildly inconsistent results.
I’m hoping there is some obvious thing I’m doing wrong. I’m sure I need to provide more information, but I’d appreciate a push in the right direction.