Print Not Sticking to Bed
If you are experiencing problems with the plastic not adhering to your print bed, there are a few things that can be done;
- Make sure to update your printer to the latest version of RoboOS. This will ensure that you have the latest version of the firmware that is flashed to your controller board, and have the most up-to-date and tested version of build plate leveling.
- Re-run the z-offset wizard
- Re-running the z-offset wizard will make sure that your bed is properly leveled. To do this, on the menu screen go to Utilities> Wizards>Z-offset Wizard.
- Clean and repurpose the build plate adhesion
- After some time, the build plate adhesion can become unsticky and plastic will no longer be able to stick to it. Resurface this by grabbing some 2000 grit sand paper and lightly sanding the surface, afterwards cleaning it with a damp cloth. Remember to re-calibrate your offset by selecting the z-offset wizard from the utilities menu.
- Using a raft
- Make sure to use a raft on all of your parts when preparing your print. This will allow a bigger surface area of plastic to stick to the bed, and can compensate for a small amount of unlevel bed.
- Lower fan speed
- If your prints are still curling after the above solutions are attempted, you can try lowering your fan speed to stop the plastic from cooling too fast and shrinking, causing warping. To do this go into your desktop software Cura for Robo. Under the settings> speed> fan speed and turn this setting down to 30%.
- First Layer Height and Width
- Set your first layer height to 0.3mm. This will allow more plastic to flow out of your nozzle, allowing a better adhesion to your print bed. You can also try making your first layer width of plastic higher. Usually a first layer width of 1mm is optimal - this will extrude more plastic at a lower layer height to allow more surface area of plastic bind to the print bed.