Hi, I have problems with my new E3D V6 hotend (0.4mm nozzle), i use it with bowden and geared extruder . Surface of the print is not smooth . I don't know what could cause this problem . I have tried almost everything .
this is a good place to start https://www.simplify3d.com/support/print-quality-troubleshooting/ Before anyone suggests something you've already done maybe you could explain what you've already tried and what the results were. Print a 100% infill 20mm calibration cube and let's have a look how it turns out.
That's what i have tried to do/change with no results: - replace standard Mk7 extruder to geared one (belt driven 3:1) - microsteps - motor current - belt tension - feedrate - extrusion multiplier - extrusion width - bowden tube shortening - hotend temperature - different filaments - replacing PTFE tube connector for one without looseness - acceleration - XY jerk - changing stepstick
A layer 1 picture would be helpful too but it does look a bit over-extruded. Also, think about retraction, if any, as with infill, it is likely you are using it. V6 should not have retraction over 2mm for best results.
I have changed extrusion multiplier from 75%(under-extrusion) to 125%(over-extrusion) by 5% steps with no results ... I have also changed extruder stepper motor today still with no results. I don't have any other ideas.
Print the standard 20mm calibration cube with 100% infill, take a picture of the 1st layer and the completed cube and its measurements. Lets take a look at the Profile you're using, all the tabs please. Whats your esteps currently set to? And just to rule it out - How many dots are there on your 0.4 nozzle?
Pictures of 20mm calibration cube and its measurements: Printed with PETG filament on 0.2mm layer ,100% infill ,25mm/s perimeter feedrate. First layer is very clean , I 'll upload a photo tomorrow. I think that there might be a problem with X and Y axis or with the extruder. There are 3 dots on my nozzle . My E steps are currently set to 472/mm.
Problem solved ! It was caused by missing microsteps in all steppers . All of the stepsticks (A4988/DRV8825/TMC2100) can't handle 24 V input voltage with low voltage stepper motors (for ex. 3.2V) .When i switched to 12V everything is fine.
Problem came back ..... I don't know what to do now. @Eviltoy could you give me specifications of your 3D printer?
i had a wonky thermistor and my issue is fixed. Are your extruder temps stable? Minewas stable too and i got these symptoms.
Yesterday i have changed the whole hotend assembly from genuine E3D V6 to old one peek J-head with 0.5mm nozzle. Results are surprising the surface is now much smoother.
Can you check if you heat your hotend up to print temp if the nozzle or heater block has a slight wiggle to it?
Have you checked that your Z motors shafts are straight and without wobble. The actual stepper motor shafts
