How to Use the Chitu 3D Printer Controller Mini V5.4 to Build a Small Desktop 3D Printer
Update 2017-3-8 by Amanda (email@example.com)
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If you have a desktop 3D Printer or want to reassemble your 3D printer, there is a great solution for you that is to choose the chitu mini v5.4 mini board.
1.1 parameters of the mainboard
Let us chack the parameters of the mainboard.
Microprocessor : STM32
Input Voltage : 12V~24V 10~15A
Power Interface: Switching power supply or adapter
Motor Driver: Allegro A4988 (1/16 microstepping)
Motor Driven Interface: Single head motherboard has four motor interface
Temperature Sensor Interface: 2 paths of 100K NTC (thermistor)
Color Touch Screen: 2.8/3.5 /4.3/5.0 inches of TFT
Upgraded Firmware supporting TF card (supports ≥ 1G FAT 16 and FAT32)
File Format Supported: G-code(CBD-Tech can customize the format to the
protection of your copyright)
Machine Structure Supported: XYZ ,Ultimaker , Hbot , CoreXY , Delta , Kossel.
Recommendation of Software: Cura/Repetier-host/Makerware/Simplify3d
Expandable modules: WIFI module, Power module(mini)
MOS module ,SD card module, USB drive module
1.2 Interface Layout
2.How to Use
2.1 Firmware Parameters Setting
According to the structure of the machine, Open the file of Complete machine parameters V1.3.5.gcode
( the one with the notepad icon with file ending .gcode)with notepad. Set the related parameter in line with machine parameters, shown below.
Click to “save” after the setup is complete, which is shown as follows.
Then put the file Complete machine parameters V1.3.5.gcode into TF card.
Plug the TF card into the board,
Link the board and the screen via FFC line, and turn on the power, you will see the light of the board is bright and the screen shows the interface below.
Choose the file parameters V1.3.5.gcode and click print. When it is finished (about 2 – 3 s), the firmware parameter will be update, shown below.
2.2 Prepare test
If you use a power adapter, there are two methods you can select
1st, use the swich linked with the two holes
2nd, no swich then use the wire linked with the two holes directly.
After assembly the 3D Printer, you could print some small models to tast the device ‘s parameters. Adjust the parameters till the printing products has the good shape and ensure that the 3D printer is in good condition.
Q1. The screen is black and it can’t work when connected with the power supply?
(1) Check FFC cable whether it connected well between the screen and the board. Conform that everythong goes smoothly. If not, reconnect again. Pull out and plug in again.
(2) If you use a power adapter, you can use the switch to short circuit or use the wire directly to short circuit.
Q2. Why stepping motor does not stop after the limit switch trigger?
(1)Wrong setting of direction of stepping motor.
(2)Wrong setting of structure type of limit switch in terms of machine
Q3. The stepping motor does not rotate？
Answer：Wrong connection of stepping motor and false identification
between inverting and non-inverting.
Q4.How to adjust the drive current of the drive chip?
At present, the driving chip current is calculated by I=U/0.8 (driving voltage divided by 0.8), the factory default is 0.85V, the driving (rotary potentiometer) voltage is the highest recommendation does not exceed 1.1V (driving chip current is too high to force the cooling), the following describes how to measure the driving voltage, as shown below.