Vertical surfaces printing very unevenly
I have printed this model about 28 times now. Sometimes in PLA, sometimes PET-G. Sometimes one item at a time, sometimes two, sometimes four, and sometimes nine. Sometimes, the print comes out perfectly, but often (50% or so), it has this horrible "wobble" in the vertical surfaces. Sometimes it's only in the base, sometimes only in the stem, and sometimes it's in both. I haven't done much to the standard settings, except to try different styles of infill, and different infill percentages, but those changes don't seem to make a difference.
When I print multiple items at once, some of them turn out fine, and some don't, which is really a mystery!
It certainly looks like my printer must be wobbling, or the print head is, or some part of it is, but I have checked everything and I can't find any part of my setup that seems like it can wobble even a tiny amount. The printer sits on a countertop that is rock solid.
I sure would appreciate some help with this! Thanks!
RE: Vertical surfaces printing very unevenly
Check the Grub Screws on the motor spindles are tighe with one facing the centre of the motor shaft flat!
regards Joan
I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility.Location Halifax UK
RE: Vertical surfaces printing very unevenly
Joan, that was it!!! Both screws on the Z motor were just a tiny bit loose, but loose enough that the rapid movement of the print head was allowing it to move. Thank you so much!!!
RE:
The hint was that the layer alignment moved back and forth by approximately the same amount. Something must be constraining the main s alignment loose screws tend to jam intermittently so the occurrence of misalignment is a bit random.
You don't say Which printer you have 'z' is normally up and down
On a Cartesian printer the X and Y motors do the fast movements.
On a Core XY printer it's normally A and B motors which do the fast moves
Happy printing
Joan
I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility.Location Halifax UK