nanoDLP

hybrid836

Member

Registered: 2020-11-10

Posts: 5

NANODLP Control Board UV LED Output

Hello,

I'm setting up a printer with the NANODLP control board V1.2 (https://www.aliexpress.com/i/3256801459608900.html). I'm using a 24V 5A power supply connected to the power input. I have a Wanhao D8 LED array (https://ultimate3dprintingstore.com/pro … rray-board) which requires 24V input and is controlled by a 5-48V optoisolator. The array power input is connected to the "LED" connection (next to the power input to the board) and I have the optoisolator connected to the 0-5V LED PWM header.

My problem is that when I try to turn on the LED array through the "Projector Calibration" tab in NanoDLP, there is no power output from the "LED" connection port. Multimeter shows 0V. Does the array need to be wired differently?

Thanks.

Shahin

Administrator

Registered: 2016-02-17

Posts: 3,546

Re: NANODLP Control Board UV LED Output

Are you using correct gcode to turn it on and off?
Try gcode on terminal first, you can find them on official Sumaopai SD card.

hybrid836

Member

Registered: 2020-11-10

Posts: 5

Re: NANODLP Control Board UV LED Output

The Sumaopai SD card has a NanoDLP distro on it (in Mandarin so I can't read it ), and I wasn't able to find any gcode library on it. Is it in one of the files and I just didn't read through enough or did you mean just using the Sumaopai NanoDLP distro?

My NanoDLP 4077 build is using Marlin 2.0.5.3, and it seems like the UV led is tied to Pin 8, and I can set the state of Pin 8 with M42 (per this post https://www.nano3dtech.com/forum/viewtopic.php?id=4587). Is this the command I should be using to turn on the LED?

Shahin

Administrator

Registered: 2016-02-17

Posts: 3,546

Re: NANODLP Control Board UV LED Output

Yes, as far as I remember you are correct.
Please, send me an email lets check with sumaopai team.