RRC[

Rat Rig Community [Unofficial]•3y ago•

4 replies

skyline131313

Getting More Consistent First Layer and Z Tilt Issue Related?

I'm having trouble getting a consistent first layer. I've had this problem before, I do the first layer leveling and get the z offset and I get a good first layer with the test print. But then when I go to print something the first layer is always bad and I get bad adhesion making the print fail usually. Sometimes it is so solid I can't get the print off and other times I just tap it and it'll pop right off. I keep lowering z offset as a result, but then the first layer becomes too or squishes too much leading to a non-flat layer. So then I increase the z offset to give it more room. It really is a pain, and then first layer height seems to impact it as well so I've started just using the same first layer height to try to make it more consistent.

One thing I tried is I thought maybe there's a problem with the z-tilt so I checked all the motors and they corresponded correctly to the expected stepper drivers. I tried lowering the tolerance for z-tilt to 0.01mm instead of 0.02mm, but as a result it seems to fail multiple times with the reason that z-tilt is increasing after 4 tries or so. After a few tries it ends up with a tolerance of like 0.004mm and then it starts to print. So I don't know if that's indicative of a problem or what is going on and why it would be increasing.

The pictures are from what I am getting now and what I was getting before, the blue is the more recent one. I tried multiple nozzles, I don't think it is clogged.