OK so here’s the story. From day one the printer has z artifacts. Have done the following as suggested by lulzbot. It’s the Taz 6.
Resquared the frame and Loosened the z nuts housings. No effect.
Performed pid tuning on both bed and extruder. No effect.
Recalibrated esteps. No effect.
Checked all belts and retensioned. No effect.
Rebuilt entire frame and z motor and lead screw assemblies. No effect.
Replaced extruder with e3d v6 and returned pid calibrations. No effect.
Tried both cura and s3d. Same results on all settings used. 30 plus test prints.
I’m about ready to throw this thing in a bonfire lol.
Happens on all fillaments including the supplied Ngen 3mm and 1.75mm.
Anyone got ideas?