Filament shrinkage when printing lithophanes

[lone sleet]

So I've been printing lithophanes for quite a long time now, and I still haven't fixed the problem of the bottom being not completely flat. I've dialed in my first layer adhesion very well and even use anti-warp tabs and brims, so I'm pretty sure it has something to do with the PLA shrinking instead. In my head I imagine the top of the lithophane shrinks inwards and that pulls the bottom of the print upwards, causing the warping. I'm probably wrong, but has anyone had this issue when printing lithophanes or something similar, and have any idea how to fix it?

Printer: Ender 5 S1 (with pei sheet)
Filament: Hatchbox white PLA
Slicer: Cura

[dawn gorge]

AI Help

It seems like you've already done a good job troubleshooting the issue with your lithophanes. Warping can indeed be caused by the PLA shrinking during the cooling process. Here are a few additional suggestions to help address this problem:

1. Enclosure: Consider enclosing your printer to create a stable and warm environment that minimizes temperature fluctuations. This can help prevent warping caused by uneven cooling.

2. Heat bed: Ensure that your heat bed is properly calibrated and leveled. Increasing the heat bed temperature slightly can also help promote better adhesion and minimize warping.

3. Cooling: If you haven't already, try adjusting the cooling settings in your slicer software. Reducing fan speed or enabling fan only after a few layers can help control the rate of cooling and minimize warping.

4. Bracing: Some users have found success by adding additional bracing to their printer to make it more stable, reducing any vibrations that could contribute to warping.

5. Ma...

WARNING: This response is AI generated and may contain errors.