Bambu Lab A1 Common Issues: Things You Should Do Before Any Serious Print

These are issues i've experienced and want to take note.  

 Calibration: Calibrate Your Filament Before Usage 

 Learn here 

 

 Change the K Value to : 0.03 and the value step: 0.001 

 

 Pick the best line which has good k factor for the printer 

 

 

 The above are two filament , one wood color filament is PLA on my P1S printer, and one gray color is PETG on A1 Printer. 

 It's hard to tell the differences between the lines so take a look carefully around 0.02 to 0.018 , you will see the differences between them and other lines. Once you've seen it, please take the value and fill in the Calibration Page on Bambu Studio , and give it a good brand name of the filament to record it and use it in the future. 

 My choice of K factor of A1 , Petg Filament by Kingroon is 0.03 and PLA filament by Kingroon for P1S printer is 0.019 

 

 

 

 

 After you've updated your filament k factor on the device, please proceed to the flow calibration. 

 Same thing with the flow calibration: 

 

 Adjust your flow ratio in the project filament and save it. 

 

 for A1's Kingroon PETG, k factor: 0.03, flow ratio: 0.9975 

 for P1S's Jamg He PLA Matte, The value of K Factor is still 0.019 and with flow ratio is 0.98 P1S's Kingroon PLA Matte, k factor: 0.019 and flow ratio is  1.029 

 Here are some screenshot that i took to measure the surface by: 

 

 Take a look with different angle with your lightning room 

 Touch and feel the surface 

 Use your phone to focus and zoom in to see the lines on the surface. 

 

 

 

 

 Pick the best one and save the record! 

 Too low Z Offset / Wrong Temp for PETG 

 Problem with Z Offset + Temperature + Max Volumetric speed 

 If your z offset is too far or too close , it could cause the rough surface. Thats why when you need to know how to benchmark the z offset by 0.025 each setting , you can increase the number or decrease it.  

 ======== 

 z offset increase/decease settings could be ...0.06, 0.04, 0.02, 0, -0.02, -0.04, -0.06... 

 

 

 Filament: PETG 

 Printing Speed Mode: Luminous Z Offset: 0.06 / or could decrease by 0.05 if you want to test best fit for more filament  Temp: 265 Max Volumetric Speed: 12 mm3/s 

 

 

 

 

 ;===== for Textured PEI Plate , lower the nozzle as the nozzle was touching topmost of the texture when homing ==

;curr_bed_type={curr_bed_type}

{if curr_bed_type=="Textured PEI Plate"}

G29.1 Z{0.06} ; for Textured PEI Plate

{endif} 

 Result: Good Print Surface 

 

 

 PLA  

 Z offset: 0.03