As documented in another thread I had some success with my latest printer. However the model I’m currently trying to print fails every time.
The base comes out uneven, it’s very thin on one side. That side also doesn’t stick to the build platform, see photos. It sounds a bit like the issue discussed in this thread: https://support.formlabs.com/entries/38561208-Testfile-didn-t-print-succesfully-Base-plate-too-thin
I played around with the z-offset in diagnostic mode. The reason why I even tried this is that I got the impression that on this printer the platform gets lowered too low initially. With previous printers, when the platform was lowered for the first layer, I could still see a very small gap between the metal of the platform and its reflection. On this printer, the two are completely together, no gap. Also, the print platform’s plastic sides are bulging outwards, and I *think* they didn’t when I got it, so I wonder if they got pushed out by too much force/pressure.
For that reason, I tried z-offsets of -0.2 and -0.7, that didn’t help and the latter actually made it worse. On the attached photos, you can see that the first print failed and the right side sags downward a bit, and the hole isn’t circular like the one that’s near the middle of the model. When I printed with -0.7 it was worse, that’s the second photo. However, with -0.7, it seems to me that on the side where the base is thicker, it’s actually closer to the intended thickness, it is about 1.8mm at the thickest location. Unfortunately the opposite side is still way too thin, I measure it at about 0.3mm. You can see that in the photo.
About the orientation of the model, I not only tried it in this orientation, pointing straight down, I also tried it with auto-orientation and 0mm z-offset. It failed in the same way, parts of the base didn’t stick to the platform and the model sagged in two locations. That’s the photo of the model with the metal thread inserts.
Another print I did at 0mm offset is the one with the cat, you can see that part of its base also didn’t stick.
It seems that the part of the base that comes out too thin and doesn’t stick is always towards the back of the printer.
I’m currently printing the butterfly test file at 0mm z-offset to see how that goes, and I’ll open a support ticket. I was wondering if anybody else has a fix for the models not sticking to the platform.