X1C printing too high in spots

[BrigadierPickles]

I’ve been printing a single sheet of PLA on my X1C to test for first layer issues. I’ve noticed that in some spots even when using bed leveling before a print, there are large spots it prints far too high.

I just add a cube to the slicer and make it take up the entire build surface and then set the Z height to match the printer settings, 0.2. This creates a giant single layer sheet.

For this test I used Bambu PLA Cyan

The places that it prints too high aren’t connected and looks more like bridging than anything.

[uman]

Check the build plate temperature is same all around the plate

[BrigadierPickles]

I don’t have any easy way to temp check the bed. I might need to buy something.

[dingus]

Is it an issue with other build surfaces? Try running the same print on a different build surface and see if the issues persist.

[L0rdS474n]

When I encounter something like that, it usually depends on the bed temperature — either it’s too low or the build plate hasn’t fully heat-soaked.

These are my findings for my Carbon Fiber Plate after printing a large single-layer square.

PSA How to use Wham Bam Carbon Fiber plate for BBL

PETG HF: Bed temperature at 80°C and first layer nozzle temperature at 260°C. PLA Silk+: Bed temperature at 70°C and first layer nozzle temperature at 230°C. PLA Basic: Bed temperature at 70°C and first layer nozzle temperature at 230°C. TPU for AMS: Bed temperature at 80°C and first layer nozzle temperature at 230°C. Note that while this setup ensures a flawless first layer, the material adheres very strongly to the bed. Magigoo Original helps realeasing the print. PAHT-CF: Bed temperature at …

I also noticed some spots that didn’t turn out well, so I added a 10-minute delay after the plate reaches its target temperature before the printer starts.