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#1 2019-11-05 16:41:16

probotix
Member
Registered: 2019-11-03
Posts: 9

Wanhao D7

So, I have a D7 I am converting over to NanoDLP on a Pi3. I have one SD card with build 1437 that had a working D7 config that I found online. It prints fine, but it does not work with the Nextion screen.

I have another SD card I have build 2418 working with the Nextion screen, but when I go to print, the print hangs on the first frame, and I have to reboot to exit out of it. I am no novice to linux, nor the Pi, but I don't know where to begin looking to debug this. Any ideas?

Also, neither build will allow me to use the built in wifi unless I also have ethernet connected, I have to use a wifi USB adapter if I want wifi only.

>Len

Last edited by probotix (2019-11-05 16:41:36)

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#2 2019-11-05 19:45:32

Shahin
Administrator
Registered: 2016-02-17
Posts: 3,518

Re: Wanhao D7

Just upgrade the 1437 to latest version, so you could retain configuration in the same time get nextion support.

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#3 2019-11-05 21:12:08

probotix
Member
Registered: 2019-11-03
Posts: 9

Re: Wanhao D7

Thought sure I'd tried that before. Tried it again just to recap... prints, but nextion only works on ttyUSB0, even after following procedures to activate ttyAMA0.

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#4 2019-11-06 17:32:11

probotix
Member
Registered: 2019-11-03
Posts: 9

Re: Wanhao D7

Okay, here is what I have so far of a working Wanhao D7 with RPi3 and 3.5in Nextion screen.

The Z axis controls are buggy on the both the web interface and the touchscreen, for example sometimes a particular button will do nothing. Sometimes a down button will move up instead.

Also, I'm using edimax USB wifi because  onboard wifi only works if ethernet cable is also attached.

Nonetheless, here is how I've reached this point:
______________________________________________


Download and flash D7 atmega board using XLoader:
https://3dprinterwiki.info/wp-content/u … -3.hex.zip

Download and burn D7 image to SD card:
https://3dprinterwiki.info/wp-content/u … 7_0517.zip

Configure wifi in wpa_supplicant

Boot Pi3B

Expand filesystem

Upgrade NanoDLP to latest stable (currently 2418)

Update raspian:
sudo apt-get update
sudo apt-get upgrade
sudo apt-get dist-upgrade
sudo rpi-update

To disable onboard Pi3 Bluetooth:
sudo nano /boot/config.txt
Add to the end of the file:
dtoverlay=pi3-disable-bt

sudo systemctl disable hciuart


Connect nextion to GPIO 15 & 16

Install TFT file to Nextion from official NanoDLP TFT files:
https://www.nanodlp.com/download/

Set NanoDLP to use ttyAMA0

Last edited by probotix (2019-11-06 18:20:57)

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#5 2020-01-28 21:08:25

sinned6915
Member
Registered: 2019-08-22
Posts: 52

Re: Wanhao D7

did you enable WiFi in raspi-config under the Networking section? 

Did you enter your ssid and passphrase there?

you did enable the Advance option in nanoDLP?

Last edited by sinned6915 (2020-01-28 21:09:10)

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#6 2020-03-29 19:55:50

heydenman
Member
Registered: 2020-03-29
Posts: 1

Re: Wanhao D7

sinned6915 wrote:

did you enable WiFi in raspi-config under the Networking section? 

Did you enter your ssid and passphrase there?

you did enable the Advance option in nanoDLP?



hello I am very new to this but I am excited to develop my project, this is with a nextion of 4.3 "and I have been at the foot of the letter of all the forums but I do not understand about the attachments of tibu and 3d handle, regarding the config.json extension form since I don't know where that file is made, in the 'raspberry'

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#7 2020-03-29 20:06:55

sinned6915
Member
Registered: 2019-08-22
Posts: 52

Re: Wanhao D7

you do not need any of those other things, they are old and out of date.

just follow this thread. https://www.nanodlp.com/forum/viewtopic.php?id=2069 to set up the nanodlp

you might have to update the firmware on the D7, but get the raspi going first

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#8 2020-04-26 05:12:36

gerry_c89
Member
Registered: 2020-04-19
Posts: 10

Re: Wanhao D7

probotix wrote:

Okay, here is what I have so far of a working Wanhao D7 with RPi3 and 3.5in Nextion screen.

The Z axis controls are buggy on the both the web interface and the touchscreen, for example sometimes a particular button will do nothing. Sometimes a down button will move up instead.


The problem of z axis manual control is the relative absolute coordinates of the gcode, you have to modify in the machine setting "movement positioning" in "absolute" and verify that isn't present a relative movement gcode in other configs. The entire profile of the d7 downloadable from the site is buggy, all the rows waitformessage lock the printer in wait because the only gcode command that produce the sync output for unlock the wait are G0, G1 and G28, WaitForDoneMessage can be used only after this commands.
Another thing that i have noticed is that the travel of the firmware 1.3 for d7 nanodlp that is a repetier firmware, is limited to 185mm for z axis. is possible to expand to 198 that is the max mecanical travel with this command on ramps terminal:
  - M206 T3 P153 X198

We can verify the eeprom parameters with:
  - M205

The only limitation is if i make a z movement of 200, it is to big respect the z travel and the controller not move, if i manually entry G28 and G1 Z198 move to the maximum travel.
Another thing is the output that is connected to one lateral fan, with this firmware is possible to power on with this:
  - M106 P1 S255

and off with:
  - M107 P1

I think is possible use this output to control all the fans recabling it that works only after print start and power off after finish with a delay to postcooling

Last edited by gerry_c89 (2020-04-27 06:41:45)

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#9 2020-07-01 05:41:13

hertz
Member
Registered: 2020-07-01
Posts: 1

Re: Wanhao D7

Gerry_c89 -

I have seen the same z axis issues probotix mentioned as well.  Where might other relative move config be hiding?  Start gcode, layer, etc.?  Also, does this impact homing z?  My D7 v1.5 would not see the endstop with the D7 nanodlp firmware.  Neither would CWS.  Original Wanhao firmware worked fine...

Hertz

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#10 2020-07-10 18:32:58

gerry_c89
Member
Registered: 2020-04-19
Posts: 10

Re: Wanhao D7

hertz wrote:

Gerry_c89 -

I have seen the same z axis issues probotix mentioned as well.  Where might other relative move config be hiding?  Start gcode, layer, etc.?  Also, does this impact homing z?  My D7 v1.5 would not see the endstop with the D7 nanodlp firmware.  Neither would CWS.  Original Wanhao firmware worked fine...

Hertz

The original firmware doesn't have the z sync feature, the start, end, before and after that i have used is the standard code that is described in the tutorial post from Shahin. the relative coordinates are configurable from an option in the system config. You can enter the gcode lines aftew you have flashed the firmware in the console for adjust the travel.
Gerry

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