Hi All, I have just installed my Titan Aero onto my Creality Ender 3, only to have ti click and stop extruding: What can be seen in this video is my moving between a 10mm retract and a 10mm extrude, the clicking seems to happen only one the extrusion, but does intermittently happen on the retract also. What I have done: -uninstalled/reinstalled the Aero, ensuring the gears are lined up, the screw is not too tight and the filament guide is aligned with the hobbed gear. -cut part of the mount away to ensure there is absolutely no contact between the large gear and the mount -tried the steps per mm at both the recommended 837 and 456 I can try a new motor, and increasing the voltage ( though I'm not sure how this is actually done ) Thanks, Steve
I would read the multitude of posts on this forum on "clicking" Also searching using Google or better still duckduckgo often gives better results than the forum search function which is a bit here and (mostly) there! I am not expert on "retraction" but 10mm (a WHOLE cm?) seems massive Search the E3D info on setting the motor voltage, certainly on the original BigBox build (probably in the OLD WiKi now) the instructions were good. You need a plastic screwdriver and a good digital voltmeter to make a good job of this. Setting the motor voltage too high would seem to have the only result of overheating the motor which will eventually cause it to fail The EXTECH EX330 is an excellent digital meter if a little pricey, but you get what you pay for.
According to the sound the extruder makes, I think this is not related to the Titan, but the voltage to the stepper motor. What stepper did you install ? Is it a 1.8 deg or 0.9 deg ? If it's a 1.8 deg (which is more common) then you should go for 400-ish steps per mm.
Lots of posts recently about stepper motor voltage but nothing about what to set the voltage to. My only knowledge of this is from the original BigBox build instructions. https://wiki.e3d-online.com/BigBox_Printer_main_assemblies:_Step_By_Step_Assembly_Process Step 27
I went with the smallest voltage I could get away with for consistent operation. The smaller the voltage you can get away with, the less heat is produced on the motor.
David Crocker (DC42) of Duet controller fame once recommended running steppers between 50% and 85% of their current ratings, he also said setting current below 30% of stepper RATED current causes jumping. When I first switched to pancake steppers in the Titans, I ran them at 100% which was enough to strip filament in a jam. Since having enough torque to do that is pointless, I dropped them to 75% (0.75 amp in my case)
