Bottom layer has gaps and holes

[maytasm 0]

I am trying to print a small object with thin areas. The bottom side/layer (side that is attached to the build plate) in the first picture (IMG_6238.jpg) has gaps and holes (basically not smooth). The top side in the second picture (IMG_6239.jpg) shows a smooth surface which is what I want.

I am using Cura and printing on FlashForge creator pro. My nozzle is 0.4mm and my line width is 0.4mm. I have try many settings such as enabling "Fill Gaps Between Walls", enabling "Filter Out Tiny Gaps", changing "Wall Line Count" to 1, enabling "Compensate Wall Overlaps", increasing "Minimum Wall Flow" to 30% and then to 70%, enabling "Print Thin Walls", increasing "Flow" and "Initial Layer Flow" to 109%.

 

Filament is eSum PLA PRO. Nozzle temp is 210 and bed is 60. Print speed is 50mm/s. I am not using brim or raft and my build plate is the blue sticker that came with the Flashforge creator pro.

Thanks!!

[geert_2 557]

I don't know your printer, but if it was an Ultimaker 2, I would guess: or the nozzle is too far away from the build plate, or the flow is far too low, e.g. 50% instead of 100%.