nanoDLP

teobiondo89

Member

Registered: 2016-12-05

Posts: 8

Backlight source problem

Hi to all,
I'm working on my lcd SLA printer and I want to use bandolo to drive it, 2/3 months ago I download an old version and all is ho correctly, now I upgrade my IV led under the lcd and use gpio 27 to drive it.
With the oldest version I remember I see in setup page a button only for set the backlight separately and remember also a button for pulsing it.
Now with the newest version I do not able to run my backlight. Is it possible have a solution please? Or explain me how to put that older buttons in the newest version please?
Sorry for my English
Wait reply, thanks

Shahin

Administrator

Registered: 2016-02-17

Posts: 3,546

Re: Backlight source problem

You can setup any number of buttons through setup page / custom buttons tab.

teobiondo89

Member

Registered: 2016-12-05

Posts: 8

Re: Backlight source problem

Hi,
Thanks for reply, but how I customize the input? Is not possible use the older version? Where I can find it?
Thanks

teobiondo89

Member

Registered: 2016-12-05

Posts: 8

Re: Backlight source problem

Hi, is it possible have a reply? Thanks

Shahin

Administrator

Registered: 2016-02-17

Posts: 3,546

Re: Backlight source problem

No, you could not find older versions on the website. Visit the named page, it is very easy to setup new buttons.

teobiondo89

Member

Registered: 2016-12-05

Posts: 8

Re: Backlight source problem

Thanks for reply, the only problem is that I do not know any type of language.. is possible for u create the script for me please?
I need that when the display turn on and show the layer, an input in pin 13 gpio 27 turn on the led light as pwm. And turn off the led when the display do not show anything.
Wait reply, thanks

Shahin

Administrator

Registered: 2016-02-17

Posts: 3,546

Re: Backlight source problem

You can turn on or off gpio using [[GPIOHigh 27]] but you cannot generate pwm pulses for LED light. It was not supported before

teobiondo89

Member

Registered: 2016-12-05

Posts: 8

Re: Backlight source problem

Hi, thanks again for reply, in this days I will try.
I have another question, I have some problem set correct the z axis because I do not know what put in the microstep sight in setup.
I use this A4988 as driver and a normal 1.8 degrees motor, I have a thk linear module of 200 mm with a 1mm pich.
The problem is that I do not able to set the correct length high because the distance do not correspond to correct distance on every button in z axis calibration.
Can u explain step by step how I can set it correctly? I do no use endstop.
What is the value for microstep to put in setup?
Thanks for help

Shahin

Administrator

Registered: 2016-02-17

Posts: 3,546

Re: Backlight source problem

Install limit switch. Move the platform until it reached the bottom using buttons on right or manually, press measure z axis length button. It will measure length of z axis.

teobiondo89

Member

Registered: 2016-12-05

Posts: 8

Re: Backlight source problem

Ok, but what can I have to write in the setup panel under microstep? What value? Thanks

Shahin

Administrator

Registered: 2016-02-17

Posts: 3,546

Re: Backlight source problem

If you are not using any microstepping enter 1, to make sure check A4988 inputs status.

teobiondo89

Member

Registered: 2016-12-05

Posts: 8

Re: Backlight source problem

Yes I'm using a microstep driver, this is the link for datasheet https://www.pololu.com/file/download/A4 … e_id=0J450
I'm using a 1.8 motor at full step, I read all the datasheet but sorry I do not find any value of microstep to put in.
Please can u help me?

teobiondo89

Member

Registered: 2016-12-05

Posts: 8

Re: Backlight source problem

Hi, is possible have your skype contact please? I need to understand some things please

Shahin

Administrator

Registered: 2016-02-17

Posts: 3,546

Re: Backlight source problem

Put 1. Move axis for 10cm. Measure the movement using ruler. If it moves 2.5cm instead of 10cm. Put 1/4 microstepping value.