Just wanted to get your opinion for all of you who own minis. I’ve been fighting Z axis wobble/banding for a bit now and have been trying to make improvements. In my opinion, if the Z axis banding was gone, the mini prints would be perfection.
My first mini seemed to have Z axis banding out of box:
Lulzbot saw this and said something was wrong and, under warranty, shipped me a new printer. I’ve been happily using the new printer for probably 9 months+ now. I can’t tell if it’s just me being more nit picky as I print more and more but, while the banding is definitely improved, it seems like it’s still there a bit. Since I don’t have another mini to compare to, I’m wondering if there’s any room for improvement at all or I should just be happy with what I have.
Lulzbot suggests printing the octopus to test for banding issues, but I would think a true test would be to print a vertical wall. Curved surfaces tend to mask light banding issues imho.
Here is a Bender print I did with a vertical wall. You can see, what I could consider, some banding between the layers in the vertical direction.
After talking to Lulzbot again, they had me loosen my X axis carriage and run the z axis motors up and down a few times to try to eliminate any binding that might be present:
The change between the last two seem to be fairly minimal to me.
So this leads back to my original question. Is this what a “typical” mini should output in terms layer on layer accuracy?
I’ve been pondering modifying the mini to add some Anti-Z wobble devices. But if this is the best I should get and others can confirm this, I probably won’t waste my time going down that road.