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Unwanted lines on box
Posted: Sun Sep 06, 2015 12:39 pm
by Tiger91
Whenever I print a large box, I get slight imperfections in the form of bumps on the front/back, which is in the same plane as the infill lines. I've attached a few photos and documents for reference. What causes this and how do I fix it?
Re: Unwanted lines on box
Posted: Sun Sep 06, 2015 7:43 pm
by jimc
Thats looks more like a hardware issue. excess play in the axis giving the issue.
Re: Unwanted lines on box
Posted: Mon Sep 07, 2015 12:56 am
by Tetraodon
Problems in the extrusion feed can do this (eg spools not turning smoothly, or wrong temperatures) - generally if it doesn't show on the GCode preview, then it isn't caused by the software, and is instead a mechanical or filament issue.
Re: Unwanted lines on box
Posted: Mon Sep 07, 2015 4:22 am
by pixel3design
You got just one problem.
TEMPERATURE.
I could bet that your printer PID is wrong and need to be recalibrated.
Look at the Z. The problem is cyclic, means that hotend reach the terminal temperature, then it became too cold to extrude correctly at the given speed.
Recalibrate the PID with:
When calculated store it in the firmware EEPROM
Re: Unwanted lines on box
Posted: Mon Sep 07, 2015 11:18 pm
by Tiger91
pixel3design wrote:You got just one problem.
TEMPERATURE.
I could bet that your printer PID is wrong and need to be recalibrated.
Look at the Z. The problem is cyclic, means that hotend reach the terminal temperature, then it became too cold to extrude correctly at the given speed.
Recalibrate the PID with:
When calculated store it in the firmware EEPROM
I've never messed with EEPROM firmware - how do I go about doing that?