FAQ-Geeetech A30 series 3D printer

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FAQ-Geeetech A30 series 3D printer

Post by Admin » Sat Nov 10, 2018 4:42 pm

Print problems
1.If you find the nozzle no filament out
1)Check your PTFE tube plug is deep enough/Smooth

2)Refer to this video clean your hotend

3)Check the extruder motor direction is correct
If the direction of it is not correct, refer to the part of"Motor"
4)Check the spring of the feeder have enough strength/Too strength of the spring will make the filament broken

5)Clean then gear of the feeder

2.Y axis layer shift
1)Tightness the Y axis belt

2)Check the vref of the Y axis motor driver board
For A4988:0.8~1.0V is ok.
If you think A4988 is too noisy, you can replace it to TMC2208
For TMC2208:0.8~0.9V is ok.
If it allows,you'd better add the heat sink for TMC2208(It will overheat if you don't do anything)
Refer to this post adjust the vref of the motor driver
http://www.geeetech.com/forum/viewtopic ... 17&t=17038

How to upload firmware?
http://www.geeetech.com/forum/viewtopic ... 20&t=60676
If you encounter this error info"LCD update failed",you need to plug the sd card for the printer.
If you upgrade the firmware via Easyprint failed.The printer will restart again and again.
Or it will show the nothing. Refer to the section of "LCD" update the firmware for LCD.

Cura profile

1.Check the USB serial chip of your board then:
http://www.geeetech.com/forum/viewtopic ... 974#p81974

The LCD shows abnormal/Black screen/restart

1.The heatbed thermistor datesheet
http://www.geeetech.com/forum/viewtopic ... 51&t=62055

1.How to reverse the direction of motors?
http://www.geeetech.com/forum/viewtopic ... 17&t=60639

1.The filament can't stuck to the heatbed
https://www.geeetech.com/forum/viewtopi ... 65&t=61986

You can use the M119 check it.If you find these:
1.Auto home doesn't work
2.The motor can run one direction only


1.Information for the Mainboard: GTM32 Mini S
http://www.geeetech.com/wiki/index.php/ ... TM32_Board
2.Schematic for GTM32 Mini S
https://github.com/Geeetech3D/Diagram/b ... MINI_S.pdf
3.Wires Update for GTM32 MINIS:
GTM32 MINI wires.png
GTM32 MINI wires.png (671.42 KiB) Viewed 15745 times
(being updated)

Compare the info of the TMC2208 and A4988
https://www.trinamic.com/support/eval-k ... stepstick/

The step of how to replace the A4988 to TMC2208
For the A30 with the 12V PSU and the HW is 2.0
1. Remove the MS3 of the jumpers off
2. Change the direction of the motor
http://www.geeetech.com/forum/viewtopic ... 054#p82054
For the A30 with the 24V PSU and the HW is 2.1/3.3
1.Upload the fw for A30 with tmc2208(Beta)
A30_TMC2208 test.zip
(78.21 KiB) Downloaded 371 times
2. Remove the MS3 of the jumpers off
3. Change the direction of the motor
http://www.geeetech.com/forum/viewtopic ... 054#p82054

The jumpers MS3
jumpers ms3.png
jumpers ms3.png (381.03 KiB) Viewed 15740 times

Hotend-s.png (23.55 KiB) Viewed 15387 times
If this information cannot cover your problems, you can join our Facebook group, and get help from our technical support team or have a detailed discussion with other customers in time.


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