nanoDLP

Im having a problem where the image is not properly oriented. It needs to be rotated by 90 degrees, I cant seem to do this without screwing up the RPi. Ive tried reorienting the values (1440 x 2560) and the display_rotate=3 line in the config.txt but that just causes the Pi not to boot.

Did anyone ge this working with this setup?

Could you please post a link to the utility and maybe post your config.txt files.

I will be attempting this next week and it would be great to see how you managed success

Thanks

Thanks oliveenchine, I'll give those a shot.

I did try to change the setting in nanodlp to 1440x2560 but it made no difference. I could change those numbers and nothing would change on the LCD. Perhaps its because im using NanoDLP.Beta? I have a Rpi3 and im using the built in Wifi. For some reason, when I use the regular NanoDLP it disables the Wifi and I cant connect to it. The Beta fixed that, but maybe its causing other problems?

Spent all day working on it, cant seem to figure it out. Got the regular version of nanodlp running now on wifi, just needed to plug it into ethernet to set it up on wifi. Still no change. The image is rotated and swapping the numbers in the setup page/projector resolution width and height dont make and change. I also can only show the full hd calibration images, the full white, boundary and the others do not show any image. full hd images show rotated and I cant rotate.

I tried the new config.txt settings but the display wont show any image now. Was working with the previous settings, just wont rotate. Maybe my timings are different?

Can someone explain how to get the hdmi_timings from the custom resolution utility? I have it app running and I can see the detailed resolution settings but im not sure what values relate to what in the config.txt?

Hey phife,

I made it work with greymfm76 settings without modifying anything !!

(Not even de-commenting the timings...they don't seem to be needed ?)

If you're trying out with any of the pre made screens, remember that most of them are made for 1080p projectors...so they WILL display the wrong way around and badly.

Try the white grid as that generates according to your screen size !

Also make sure all settings are indeed 1440 width and 2560 height !

Also make sure you say yes to removing overscan when you install nanodlp.

I had some strange non-slicing problems (black plates) so reinstalled entire raspian lite from scratch then stayed on the basic nanodlp version (as installed via command line)

Once you get wifi to work, make sure you don't have the network cable connected to the raspberry as that sometimes Sen to screw up internet access for me...and thus make it work weirdly.

Oh and always turn on the printer before you turn on and boot the raspberry...sometimes it doesent detect the screen if you plug it in after boot.

Good luck !!

//O.

2) configure Raspberry PI3 HDMI to support 1440x2560 pixel resolution:
sudo nano /boot/config.txt:
hdmi_force_hotplug=1
#hdmi_ignore_edid=0xa5000080
disable_overscan=1
framebuffer_depth=24
gpu_mem=192
framebuffer_ignore_alpha=1
#start_x=1
hdmi_cvt=1440 2560 48
hdmi_group=2
hdmi_mode=87
hdmi_pixel_freq_limit=400000000
hvs_priority=0x32ff
max_framebuffer_width=1440
max_framebuffer_height=2560
framebuffer_width=1440
framebuffer_height=2560
config_hdmi_boost=4
#hdmi_timings=1440 0 16 16 64 2560 0 5 2 1 0 0 0 50 0 176947200 3
#hdmi_cvt 2560 1440 50

I have the same screen and it prints ok using these settings but displays odd on the web ui (squished because it is trying to display as landscape). anyone get it worked out so the images on the screen, slicer and projector calibration all jive?

Greymfm76 I saw your post installing nano dlp on this printer. I just bought one too, but I'm using creationworkshop, and printer software. Sorry for my ignorance, but the little I read and understood that the nano dlp is far superior to use in the printer. Would it be possible for me to pass a brief tutorial on how I install nano dlp on the printer? (I already downloaded the nano dlp). Thank you so much for now.

Apologies if I somehow missed it, but can someone tell me if there is a standard set of settings to use in the Setup tab on nanodlp for these printers?

Did you get it working ?  Would you please share your printer settings ?
thanks

Last edited by bigfilsing (2017-03-13 05:00:25)

I've tried "virgin" NanoDLP with the config file changes described above (my EDID data indicates that my setup uses A2Derek's HDMI timing) as well as the WanHao D7 Wiki's image https://3dprinterwiki.info/wiki/wanhao- … ll-option/

Both behave similarly as far as the dynamic calibration looking great, and the other patterns being rotated. Swapping the height and width resolutions on the settings page makes every test pattern rotated and cropped.

The interesting difference between stock Nano and the WanHao image is the behavior with the white test pattern. With the WanHao image you get a couple flashes of white and then it stops until you reboot. With regular Nano I get static like in this video:

https://youtu.be/YohuZRWgf0o

Note that I'm using 100% WanHao hardware in the video path because I've swapped the LCD and its driver board with WanHao replacement parts in my troubleshooting. I've also used a spare Pi 3, swapped HDMI cables, etc... I'm quite confident that this is a "soft" setting and not a hardware issue.

Any idea of what config/settings I need to change?
The static white seems like a new symptom for this thread. Has anyone else come across it?

Thanks for the additional info! So that probably explains the rotated dynamic calibration pattern... What about the static white pattern?