nanoDLP with Mark IV

As I had to move the printer away from our living room :cool:, I don't have much spare room left for a dedicated PC... plus, I'm not that impressed by the features and capabilities of Creation Workshop, and the use of a secondary screen in Windows 10 is giving me headaches.

So, gave it a try with a Raspberry Pi 3, running nanoDLP, hooked up to the Morpheus Mark IV.

Main advantages being:

• no more additional dedicated (and error prone) laptop/desktop computer needed,
• a wireless Morpheus Mark IV, just use any tablet/smartphone/pc to access the nanoDLP webpages over wifi,
• (still to do: ) nicely integrated inside the Morpheus, with the Pi running from Arduino power,
• (still to do: ) and last but not least, advanced features like 'variable exposure rates', 'mask support', 'in print pictures with a Pi Camera', ...

The somewhat down side being: nanoDLP currently (build 1117) only accepts SLC, SVG or Zip (PNGs) files. Meanwhile, Asiga Stomp allows STL to SLC export (find it here).

Here are the settings I'm currently using on nanoDLP build 1117:

• Setup - Hardware Setup:

Attachment 1411
Attachment 1412
Attachment 1410

• Setup - Customized Buttons: (Note: created an 'initialise' button, as 'Gcode - Bootup' above is often executed too early. Optionally, created a 'home' button, if you added a lower endstop, see thread here)

Attachment 1413

• Printer Profile: used for FTD resin at 100µ layer height. (I still need to figure out how to improve the 'Gcode After Each Layer' with variable delay)

Attachment 1414
Attachment 1415

See post #4 below for the installation instructions.

Have fun!

What a coincidence! I just ordered my Pi3 yesterday! haha! :)

Seems like a good path to follow! :)

Links to nanoDLP and other soft so we can follow your path please? :D


My other question would be if using a IR Pi Camera would affect the prints or the camera itself... so we can monitor the whole process in the dark :D

Quote:

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Originally Posted by bolsoncerrado

What a coincidence! I just ordered my Pi3 yesterday! haha! :)

Seems like a good path to follow! :)

Links to nanoDLP and other soft so we can follow your path please? :D


My other question would be if using a IR Pi Camera would affect the prints or the camera itself... so we can monitor the whole process in the dark :D

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Weird, I'm sure I added links in the first post... Seems they got lost.

nanoDLP : www.nanodlp.com

To install nanoDLP on a Raspberry Pi 3:

• Download the latest Raspbian Lite OS from https://downloads.raspberrypi.org/raspbian_lite_latest
• Install the downloaded (unzipped) image on an SD card, as described on https://www.raspberrypi.org/document...ges/windows.md
• Insert SD card, ethernet and power cable in the Pi
• Get remote access on the Pi over ssh (https://www.raspberrypi.org/document...remote-access/)
• To avoid inconsistent blanking of the Morpheus LCD screen, add following lines to /boot/config.txt ;
  
  Code:

  ---

  disable_overscan=1
hdmi_force_hotplug=1
hdmi_drive=2
hdmi_group=1
hdmi_mode=31

  ---

• Optionally, if you want to access over wifi, add your wireless network details like https://www.raspberrypi.org/document...ireless-cli.md
• Deploy nanoDLP via command
  Code:

  ---

  (wget http://www.nanodlp.com/nanodlp.tar.gz -O - | tar -C /home/pi -xz);cd /home/pi/printer;sudo ./setup.sh

  ---

http://www.nanodlp.com/install.gif

Oh no they're still there, nanoDLP is linked, my bad lol!

Thanks for the further explanations ;)


Wow! Finally! Software that tells you resin usage in ml! WOhooo!!!

BTW the nanodlc page also links to this ;)
SLC Format

You can save your 3D files as SLC format from many popular 3D programs. But if your favorite program does not export SLC or quality wise it is not good, you can try programs below:

• Asiga Stomp (Freeware) STL to SLC Converter
  
  
  
  Wohoo! It even has a TERMINAL mode!
  
  This software looks very promising!!

Just tried to drive the Morpheus LCD by RPi3 with nanoDLP, and it works!
The Pi found the Morpheus LCD as being an "HIF-HID1920X540H_" and runs as [HDMI CEA (16) RGB full 16:9], 1920x1080 @ 60.00Hz, progressive.

Pic of the Morpheus LCD showing a nanoDLP calibration image, added to the first post.

Couldn't resist to connect the USB cable as well :o, but the default speed/motor/actuator settings seems incompatible with the Morpheus, as I'm getting inconsistent results when moving the Z axis. Communication via Gcode (M106 S240, M107, ...) works nicely though!
Can't wait for an answer from TOW with correct settings to try out a first print.

Wohooo!!! moving forward!!

The software really seems complete and a dream come true!

If the resin calculator is somewhat accurate, this will be a very NICE addition to the Morpheus "one-in-all" solution without the need for a laptop!

Wohooo!!! moving forward!!

The software really seems complete and a dream come true!

If the resin calculator is somewhat accurate, this will be a very NICE addition to the Morpheus "all-in-one" solution without the need for a laptop!

Ps. Woale the image on your first post appears blocked.

Quote:

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Originally Posted by bolsoncerrado

Ps. Woale the image on your first post appears blocked.

---

Thanks, corrected now I hope...

Wow! I'm not as techie (codewise) as you guys appear to be, however can follow instructions and get the desired results. I also have a Pi arriving tomorrow and this would be a great use for it. Can you show us photos of how you hooked up the Pi to the arduino inside your Morpheus? I'll try not to pester you guys but I'm really excited to try this out.

You dont need to mess with the insides of the Morpheus at this time yet... Just plug the Pi HDMI to the Morph HDMI and the Pi USB to the Morph USB and that should be it.

Anyone knows where's TOW?!

Quote:

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Originally Posted by bolsoncerrado

You dont need to mess with the insides of the Morpheus at this time yet... Just plug the Pi HDMI to the Morph HDMI and the Pi USB to the Morph USB and that should be it.

Anyone knows where's TOW?!

---

Got a mail from SJ this morning: "Please wait for a while, my staffs will get back to you with appropriate info."
[emoji106]

So @woale whats the "connection" order for the Raspi, Morpheus and the HDMI?

You turn on the Morpheus, then plug the Raspi to the power outlet, then the HDMI to the Raspi?

Quote:

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Originally Posted by bolsoncerrado

So @woale whats the "connection" order for the Raspi, Morpheus and the HDMI?

You turn on the Morpheus, then plug the Raspi to the power outlet, then the HDMI to the Raspi?

---

Theoretically, the Raspi and Morpheus could stay "connected", without any power on sequence to respect... which is why I'll try to power the Raspi via the 5V VCC from the Ramps board.

But, this morning I had inconsistencies with the LCD (layers blinking for seconds), which I haven't figured out yet (hardware or software).:confused:

The Speed/Actuator/Motor settings are all almost set. More to share tomorrow (I hope).

Here are the actuator related settings I've been using, under Tab 'Setup', 'Hardware Setup', where you define a Printer ;
Speed (which don't matter much, since we'll be using Gcode):
- Max Speed (micron/sec) : 3000
- Min Speed : 1000
- Motor Startup Speed : 100
Actuator / Motor (only used for manually moving the buildplate under Tab 'Z-Axis Calibration'... @AngryPanda, look out for those 50mm buttons ;) ):
- Motor Step Angle : 1.8
- Microstep : 16
- Leadscrew Pitch (mm) : 2

These Printer Setup related Gcode I found useful ;
- Execute - Start of Print , and End of Print:

Code:

---

date "+@ %T:%N"

---

- GCode - Start of Print:

Code:

---

; SoP [[SyscallResult]]
G21 ; set to mm
G91 ; set to relative
M17 ; enable steppers

---

- Gcode - End of Print:

Code:

---

; EoP [[SyscallResult]]
M107 ; led off
G1 Z6.9 F250 ; move up
M18 ; disable steppers

---

- Gcode - Shutter Open:

Code:

---

M106 S240 ; led on

---

- Gcode - Shutter Close:

Code:

---

M107 ; led off

---

Be sure to keep 'Movement GPIOs', 'Shutter', 'Projector Connection' and 'Hardware Fault Detection' in Disabled, and don't forget to hit "Submit".

The next version of nanoDLP will also contain a "GCode - At bootup" field, but for now I created a "Customized Button" (under Tab 'Setup') to initialize the RAMPS board with following GCode:

Code:

---

; init
G21 ; set to mm
G91 ; set to relative
G1 F250 ; set speed

---

Note: I haven't printed yet with nanoDLP, so we'll need to figure out the correct GCode/settings in 'Printer Profile' to move the buildplate between layers.

The one and only reason I haven't been printing yet with nanoDLP, is the Morpheus LCD screen is behaving very inconsistent... the screen simply "blanks" from time to time, sometimes for minutes, sometimes for seconds, and other times I need to boot the RPi and Morpheus before I can get anything on the LCD screen again.

I've been trying all sorts of HDMI settings (via tvservice command, and via alternative modes in /boot/config.txt), other connection sequences, different RPi power supplies, HDMI cables, .... and I'm running out of options, time and patience :(

Could someone please verify if same behavior is observed by removing the buildplate+vat and running some test prints (like a Calibration Plate), or display the Projector Calibration image : experiencing some "blanking" as well ? The screen doesn't power off, or doesn't go into power saving mode, nor does it loose HDMI signal.... the image simply goes away (=black screen).

@woale are you already into the powering-everything-from-ramps mode or are you still using power sources to power raspi alone for now?

Quote:

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Originally Posted by bolsoncerrado

@woale are you already into the powering-everything-from-ramps mode or are you still using power sources to power raspi alone for now?

---

Still powering raspi from separate USB source.

Woooohoooo!

Finally fixed the LCD blanking issue... turns out the RPi (various models) don't cope very well the EDID info from the Morpheus LCD screen.
Obtained the Morpheus LCD driver board datasheet from TOW, and figured out 1080p mode is only possible with 50Hz and 59.94Hz vertical timing frequency (not the 60Hz which RPi prefers).

So, spent a whole day to try setup custom CVT modes to obtain 59.94 Hz (like Windows 10 does with default EDID info)... but eventually had to satisfy with 50Hz.

This is the /boot/config.txt options that work for me, allowing an HDMI CEA standard of 1920x1080 @ 50Hz Progressive ;

Code:

---

disable_overscan=1
hdmi_force_hotplug=1
hdmi_drive=2
hdmi_group=1
hdmi_mode=31

---

Minimal installation instructions post (first page) updated accordingly ;)

Tomorrow, printing trials with nanoDLP! :D :D :D

Awesome work woale!! you really need to update first post with a step by step instruction from scratch now :PI'm now having issues with my uv filter, I just hope it will be a software issue and Nano DLP will save my ass :P

Any update @woale? You have us on tenterhooks! :D

Quote:

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Originally Posted by bolsoncerrado

Any update @woale? You have us on tenterhooks! :D

---

Patience my friend, I first need to free up some time to print :cool:

Quote:

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Originally Posted by woale

Patience my friend, I first need to free up some time to print :cool:

---

Did you have any chance over the weekend to test any result with NanoDLP?

Yep, ran 2 small prints (actuator endstops from Morpheus modifications thread) with nanoDLP on a RPi3. Must say I'm quite impressed. No way I'm going back to CW on a Windows box ;) Just need to figure out a few additional settings. I'll try to update my current settings on the first post later this evening.
Seriously, give it a try.

Wohooo! :D

Quote:

---

Originally Posted by woale

Yep, ran 2 small prints (actuator endstops from Morpheus modifications thread) with nanoDLP on a RPi3. Must say I'm quite impressed. No way I'm going back to CW on a Windows box ;) Just need to figure out a few additional settings. I'll try to update my current settings on the first post later this evening.
Seriously, give it a try.

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Super cool! My RPi3 should arrive this week. I can't wait! I am particularly looking forward to seeing the printing process on the screen and getting rid of a few cables :)

...and metal frames lol

...and avoiding the burnout of the laptop screen lol

c'mon woale, let's see those settings! :D

Quote:

---

Originally Posted by bolsoncerrado

c'mon woale, let's see those settings! :D

---

First post updated ;)

Quote:

---

Originally Posted by woale

First post updated ;)

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Thanks for update with the settings @woale -awesome!! I wonder if you have any picture with successful prints that we can preview? I can't wait to install mine!!

I tried using NanoDLP a few days ago, however the UV light panel came on, but the screen just showed the very first image and after that, kept showing blanks. Anyone else had this issue? When I went back to CW, everything was fine.

Quote:

---

Originally Posted by sukhvir

I tried using NanoDLP a few days ago, however the UV light panel came on, but the screen just showed the very first image and after that, kept showing blanks. Anyone else had this issue? When I went back to CW, everything was fine.

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If the layers were also blank on the preview window (on main page) during print, I'd say an issue with slicing (which I haven't had). Otherwise, if it's inconsistent full screen blanking, be sure you run the lcd in 1920x1080@50hz (check via command 'tvservice -s' over ssh) as mentioned in earlier posts in this thread.

Thanks for getting back @woale. The layers were all present on the preview window and I could go through each one to confirm it had sliced properly. I also had the lcd set up as you mentioned, however will try again in a couple of days and report back. How are your prints coming along?

Quote:

---

Originally Posted by sukhvir

Thanks for getting back @woale. The layers were all present on the preview window and I could go through each one to confirm it had sliced properly. I also had the lcd set up as you mentioned, however will try again in a couple of days and report back. How are your prints coming along?

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Haven't had the chance to print yet. Soon I hope ;)

I'm amazed almost any of us have succeeded yet lol I'm also in the middle of a big office move and I'm stalled as well lol

Indeed stil a bit of a hassle to print something, even on FDM. Can't wait till the time comes when you can simply flip it on and your cleaned print comes out instantly :D

Quote:

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Originally Posted by woale

To install nanoDLP on a Raspberry Pi 3:

---

Hi Woale: I finally got my raspberry pi 3 and I installed the nano dlp following your instructions. What do we need to do after the installation? I see on the screenshots on top that you have the ip/setup .. where do we put that link? on the pi 3 or any browser? that Ip is the ip of the raspberry pi?
After installing your instructions my raspberry pi went dark and I put the ip of my raspberry pi on the browser of my laptop but the page is in blank. I also tried to access my raspberry pi via putty but it was not allowing me. Your help is much appreciated, thanks!

Quote:

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Originally Posted by acnow

Hi Woale: I finally got my raspberry pi 3 and I installed the nano dlp following your instructions. What do we need to do after the installation? I see on the screenshots on top that you have the ip/setup .. where do we put that link? on the pi 3 or any browser? that Ip is the ip of the raspberry pi?
After installing your instructions my raspberry pi went dark and I put the ip of my raspberry pi on the browser of my laptop but the page is in blank. I also tried to access my raspberry pi via putty but it was not allowing me. Your help is much appreciated, thanks!

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Congrats acnow for making it this far.
To be sure I understand your post, you've been able to deploy the RPi image on the SD Card, boot up the RPi and accessed it with putty over ethernet cable to install nanoDLP?
Then you should be able to enter the ip of your RPi on any browser from your local network to obtain the nanoDLP homescreen.
Otherwise, reboot the RPi and check your router to be sure of the granted ip.
Let me know how it goes.

@woale

I'm finishing setting up nanoDLP now and gonna try it on my Morpheus...

Re the lift gcode the original CWS gcode had...

;********** Lift Sequence ********
M107
G1{$SlideTiltVal != 0? X$SlideTiltVal:} Z($ZLiftDist * $ZDir) F{$CURSLICE < $NumFirstLayers?$ZBottomLiftRate:$ZLiftRate}
G1{$SlideTiltVal != 0? X($SlideTiltVal * -1):} Z(($LayerThickness-$ZLiftDist) * $ZDir) F$ZRetractRate
;<Delay> %d$BlankTime
;********** Lift Sequence **********



is this not used anymore on NanoDLP?



And once all settings "cloned" from your setup, how do you load and "slice" the file then print it?

@woale.. It will be nice to have a video tutorial of the entire process... For example... Once I installed those settings you shared at the beginning i cannot access my raspberry pi via putty client with the old ip -or browser. If I need to change the resolution settings of the screen remote access is needed here.. Tomorrow I will get a memory adapter to erase and install everything again -but I think a video will help people the best.. Thanks in advance !!