If you have weaker and stronger layers in the same print, one possible cause is a fluctuating extruder temp.
There are two possibilities here:
Nothing is mechanically wrong with the printer, but the control loop to maintain your extruders temperature is not well tuned. You can fix this by running a PID tune. Just throw a “u” on the end of the line to write the values to memory
You could be experiencing an intermittent failure, likely in wiring, for your thermistor or heater
Vertical walls will also typically be wavy in this case because you’ll have more extrusion flow at hotter temperatures and less at lower.
Yes I believe the second option is more likely because i have been increasing the temp to get the same results for a while now. It used to print perfect at 190, then I had to up it to 200, 210 and now it will only print something useful at 230 and it has been failing at the begginig, the first layers are now bad and then the rest is good. It wont last much longer.
If you have weaker and stronger layers in the same print, one possible cause is a fluctuating extruder temp.
There are two possibilities here:
Vertical walls will also typically be wavy in this case because you’ll have more extrusion flow at hotter temperatures and less at lower.
Yes I believe the second option is more likely because i have been increasing the temp to get the same results for a while now. It used to print perfect at 190, then I had to up it to 200, 210 and now it will only print something useful at 230 and it has been failing at the begginig, the first layers are now bad and then the rest is good. It wont last much longer.