Starting to look into Geeetech A10 adhesion issues, I'm reading this: http://www.geeetech.com/forum/viewtopic.php?t=61521 - and this: https://www.reddit.com/r/3Dprinting/comments/9rx0zi/first_layer_problems_on_my_new_geeetech_a10/
Suggestions include:
- Use a better filament (e.g. Prusament?)
- 70°C for bed, 210°C for end.
- 12mm speed for first layer.
- Be careful about scratching the bed.
- Check the bed is not warped. Try 9-point levelling? Is that "mesh leveling"?
- Use isopropyl alcohol to clean the bed.
- Try the calibration cube with the A10 Cura profile.
- Try another test object.
- Check if there is a problem with under-extrusion. Extra pressure on the filament lever, maybe?
- Replace nozzle?