At least I think that’s the problem. I’ve had my Taz 6 and have been printing happily for months now, but recently I’ve been having my first print failures, I had narrowed it down to some prints not sticking to the bed and it was when I started printing these calibration cubes that I saw this issue.
So I started watching the first layer like a hawk and noticed some strangeness and stopped the print several times with this result
It was only off by a few millimeters, so I edited it as instructed. Still no joy. So I thought to myself, Maybe i’ve changed something, let me go back and factory reset it, and print my first rocktupus again using the included file and the Ngen they provided. After all, my first print was pretty nice, especially it’s first layer as you can see here:
Except for the fact that I broke a leg getting it off the plate (It was my first time!)
But, printing another Rocktupus ended up like this:
Yes, I broke two arms off of this one…I was frustrated…Anyway.
Thoughts? I’ve attempted to change the Z Axis with little success. Starting at 1.500 I’ve decreased it little by little and am now down to 1.437 and it doesn’t seem to be working.
I’m still new at this so any advice you can give is appreciated, thanks.
At least I think that’s the problem. I’ve had my Taz 6 and have been printing happily for months now, but recently I’ve been having my first print failures, I had narrowed it down to some prints not sticking to the bed and it was when I started printing these calibration cubes that I saw this issue.
If you haven’t changed your zoffset but prints are starting to not stick, I’d try a couple of things below.
Clean bed thoroughly, with alcohol and lint free cloth. Try a reprint.
But I suspect your pei sheet may be fading a little. So try a pva glue stick in area your printing. Try a reprint
Use a brim. Try a reprint
You could continue to lower your zoffset. Be prepared to adjust:
initial layer thickness
initial layer line width
1st layer speed
Try a reprint.
Lightly sand your pei sheet (look on youtube and find good video) <<< probably not necessary yet
Replace your pei sheet <<< probably not necessary yet
Your first layer lines are a little to close, in the photo showing 3 squares.
If your esteps are calibrated
Could be your zoffsets too close to hotbed
Or extruding too much 1st layer
If you want to change zheight lower it in .5 increments.
My factory z height was -1.361
If needed it lower for better adhesion or different type filament I’d try the following
-1.411
-1.461
-1.511
-1.561
-1.611
-1.661
And so on
I’ve gone as low as -1.761. to try and print a 1st layer that adhered without extra line width or layer height.
With a layer height of -1.361 you need extra initial line width and height. But with a much lower z height you can keep the same line width and height as the rest of the print. Helped fighting elephants feet.
My nozzle never hit the build plate, but I was scared to go so low, so I kept my finger on power button just in case.
Everyone seems to be pointing me to z offsets, which I thought I had been attempting, but nuroo points out I might have to adjust it far more then I had been attempting. Will give this a try!
By the way, I seem to have solved my problem, I didn’t realize that somehow my inital layer height got set to .425. I lowered it to .2 and lo and behold, much better quality prints!
Thanks everyone for the suggestions, I still learned a few interesting things I need to do/learn more about. Much appreciated.