Hello, I do have my H2d now since a month and a few days and I get frustrated with it’s results.
While, overall the print quality and features are great. The main purpose I bought this printer for is to print tall objects with a rather small diameter.
To be specific, I do print drone parts (bagpipes) and chanters.
In addition, I use a support material for interface layers on some specific locations.
I got used to it, that “layer time” will give the layers with this support material an issue… nothing sanding can “fix”.
But the printer gives sometimes a layer shift the lower the print bed gets and the higher the print is.
But even worse, the print seems to bend/lean in one direction, the higher it gets. Could this be caused by the side Fan?
Mostly this issue (leaning) happen with PLA. With ABS I have not recognized it. Currently I am trying this with PETG.
Yes of course. Sorry I have not thought about them.
It’s hard to see on the pictures. The black ones are Bambu ABS. I dont remember having these “bends” (they are already surface finished) but I had layer shifts also with ABS.
The white ones are Bambu PLA.
I tried to point the direction the print “moved” at the top. I Dont remember how the direction was in the printer. I would need to check that for the future.
The thicker long part with the Layer Shift also had this “crack” which I’ve seen the first time.
I ave tried to reduce minumum print speed but also increase minimum layer time in the filament settings.
(the longest part does not fit completly on the printer, the black one is glued together, hence the white one looks different but is the same)
The part’s are with wall’s only at that point (4 walls). Not enough diameter for infill there.
But this is causing the bend? Wouldnt this also affect parts that are shorter but even smaller in diameter? Those are 100% straight.
Have a look at ‘reduce infill retraction’. It is on by default and might cause the nozzle to hit infill causing small shifts. I have in the past solved problems with high prints by turning this off.
The question mark issue looked like the layers didn’t stick together. The black lines looks like seams? Hard to tell. The shift is an issue, there is another thread about z axis shifting like that on the H2D. Too bad you don’t have an x1c so you can try to print the same object and see if there is a difference.
Thank you. The Seam is fine… the black line is just painted on to show the bend in the “part” itself as it is hard to see on the pictures.
I do have an x1c. But the x1c is ways to small for that, unfortunately.
I’ve had similar issues printing my https://makerworld.com/en/models/1148967 on the H2D. Slowing it down by switching to silent mode has helped in the past but I haven’t revisited the issue in a while. I just started a print of it again to see how well it prints with the latest Bambu Studio and firmware.
Update: Well I didn’t get a layer shift but it knocked itself over about half way through the print. I tried again with silent mode and it successfully printed.
