nanoDLP

Dylan144GT

Member

Registered: 2017-09-25

Posts: 8

Setting Up Z-Axis

Hi All,

I am building my first LCD (iPad 3/4 LCD) based printer and I am busy setting up the hardware. I am using a Raspberry Pi 2 Model B, an Arduino Uno flashed with GRBL 1.1f and a V3.00 GRBL shield with DRV8825. I have successfully setup the LCD and gotten a reliable slicing engine from Autodesk Print Studio. All that is left to do now is to set up the z-axis motion.

Can someone please explain this procedure? Do I set it up under the resin settings? If so, do I have to fill in the syscall and g-code before and after each layer? Also, do I need to used a patched version of GRBL?

Also, my LCD is calibrate correctly, but it flickers every so often. My config.txt setting are as follows:

overscan_left=20
overscan_right=20
overscan_top=20
overscan_bottom=20

start_x=1
core_freq=500
sdram_freq=500
over_voltage=2

disable_camera_led=1
dtparam=i2c1=on
dtparam=i2c_arm=on
dtparam=spi=on
enable_uart=1
dtoverlay=w1-gpio

disable_overscan=1
hdmi_ignore_edid=0xa5000080
hdmi_cvt 2048 1536 50
hdmi_group=2
hdmi_mode=87
hdmi_pixel_encoding=2
hdmi_pixel_freq_limit=500000000
hvs_priority=0x32ff
max_framebuffer_width=2048
max_framebuffer_height=1536
framebuffer_width=2048
framebuffer_height=1536
framebuffer_depth=24
framebuffer_ignore_alpha=1
config_hdmi_boost=7
gpu_mem=192

Others have used a different pixel frequency limit 206MHz, but that does not work for me.

Thank you for all the help.

Kind regards,

Dylan

Last edited by Dylan144GT (2017-09-25 18:55:27)