Duex4 v0.2a (with Duet 0.6)

sylvaindc

Hi All,

I managed to get my @DC42 inspired large Delta up and running using my Duet 0.6 board (running Firmware: RepRapFirmware for Duet 1.26.1 (2020-02-09b1))

Now when I ordered the Duet 0.6 back in 2015, I added the Duex4 expansion with it and would like to add that to do the following:

Add a 2nd extruder
Add 2 parts fan (or perhaps 2)

Sounds easy, but I quickly ran into the following issues by just looking at the specs on http://blog.think3dprint3d.com/2015/04/duex4-v02a-minor-updates.html

I have @dc42's IR leveling meter hooked up to my Duet 0.6, using a pin on the expansion header https://miscsolutions.files.wordpress.com/2015/05/duet0-6-brd_0-781.png (Pin AD12 if I'm not mistaken). Does that just loop through to AD12 on the J7 EXPANSION1 header of the Duex4?, or should I find an other solution?
Is it possible to connect a FAN for the 2nd extruder, or should I just use one fan connector for both extruders?
Is it possible to use one of the drivers or EXPANSION1 pins to hook up a parts fan?

I did some googling, but I starting to think I own the only Duex4 still around

many thanks for your help!

Nxt-1

@sylvaindc I have one around, we're buddies now I have never used it though, never really needed it and the pinout in 1-1 with the Duet2 I use. I will follow this thread though.

dc42

@sylvaindc said in Duex4 v0.2a (with Duet 0.6):

I have @dc42's IR leveling meter hooked up to my Duet 0.6, using a pin on the expansion header https://miscsolutions.files.wordpress.com/2015/05/duet0-6-brd_0-781.png (Pin AD12 if I'm not mistaken). Does that just loop through to AD12 on the J7 EXPANSION1 header of the Duex4?, or should I find an other solution?

AFAIR, it just loops through.

Is it possible to connect a FAN for the 2nd extruder, or should I just use one fan connector for both extruders?
Is it possible to use one of the drivers or EXPANSION1 pins to hook up a parts fan?

With firmware 1.26.1 I think it should be possible to connect fans to spare heater outputs on the DueX4, but it's probably never been tested.

sylvaindc

@Nxt-1 Duex4 buddies for life!

sylvaindc

@dc42 said in Duex4 v0.2a (with Duet 0.6):

@sylvaindc said in Duex4 v0.2a (with Duet 0.6):

I have @dc42's IR leveling meter hooked up to my Duet 0.6, using a pin on the expansion header https://miscsolutions.files.wordpress.com/2015/05/duet0-6-brd_0-781.png (Pin AD12 if I'm not mistaken). Does that just loop through to AD12 on the J7 EXPANSION1 header of the Duex4?, or should I find an other solution?

AFAIR, it just loops through.

Is it possible to connect a FAN for the 2nd extruder, or should I just use one fan connector for both extruders?
Is it possible to use one of the drivers or EXPANSION1 pins to hook up a parts fan?

With firmware 1.26.1 I think it should be possible to connect fans to spare heater outputs on the DueX4, but it's probably never been tested.

That sounds like good fun to try @dc42!

So lets see how to do this:
step 1: See if the IR probe still works when I loop it through (I'll try that tomorrow)
Step 2: Hook up a fan to a heater output. Minor problem is that I'm very sure I dont know what I'm doing :). How would I hook this up (just connect it I guess, does the heater PWM?) and how do I update the configs? Any hints you can give me?

dc42

Using firmware 1.26.1 you can use the A parameter of the M106 command to specify a heater port that the fan is connected to.

sylvaindc

@dc42 said in Duex4 v0.2a (with Duet 0.6):

Using firmware 1.26.1 you can use the A parameter of the M106 command to specify a heater port that the fan is connected to.

Ok, that sounds like a plan, but how do I find out which logical pin e.g. the E4 heater is connected to?

Phaedrux

See anything helpful in here?
https://reprap.org/wiki/Duet_Wiring#Duet_0.6

How bout here?
https://reprapltd.com/documentation/fisher-build-instructions/duet-0-6-electronics/

Or here?
https://reprap.org/wiki/Duex4

Maybe this?
http://blog.think3dprint3d.com/2015/04/duex4-v02a-minor-updates.html

That's about as good as I can google.

dc42

There is a list of logical pin numbers at https://duet3d.dozuki.com/Wiki/Using_servos_and_controlling_unused_IO_pins.

sylvaindc

Thanks @Phaedrux and @dc42!

I'll be having some fun with these documents. I'll document my findings here in case some archeologist ever stumbles over the 3rd known Duex4

Quick question that remains is a hardware one, can I just hook up the 24v fan to the heater pins, or do I need to add a cap in parallel or something to ensure proper PWM?

droftarts

@sylvaindc said in Duex4 v0.2a (with Duet 0.6):

I'll document my findings here in case some archeologist ever stumbles over the 3rd known Duex4

Ha! Think a Duex4 is rare? How about a 'Duet Shield'! There is some documentation: http://reprapltd.com/reprappro/documentation/multi-materials/electronics/index.html and an old post on the RepRap forums where @dc42 posted the schematic https://reprap.org/forum/read.php?4,822811 and board files here https://github.com/reprappro/Duet/tree/dev/Archive_Files/Shield-0.3 (the 0.3 version was the production version, I think, the 0.4 version never made it into production). Posted here for the same archaeologists...

I'm not sure how many multimaterial upgrades RepRapPro sold, but I don't think it was many. But I have a Duet Shield! Found it yesterday when wiring up a Duet06 to see if RRF1.22.6 works with DWC 3.2beta2 (it does! However, DWC 3.2 will be the last version that will work with non-Object Model versions of RRF, ie everything before RRF 3.0).

Ian

sylvaindc

Ok, small update.

From: https://reprap.org/wiki/Duet_pinout
- I localized the pins I should use: Pin: 23, Label: PC21, DuePin: D9, RepRapFirmwareUsage: heat[5] / E4_PWM.
From: https://duet3d.dozuki.com/Wiki/Using_servos_and_controlling_unused_IO_pins#Section_Logical_pin_numbers
- Although it doesnt mention Duex4 explicitly, the info on Duex2 and Duex5 I guess E4_PWM is logical pin number 6:
  - 3-7 seem to be available for heaters on expansion board
  - this is the 4th one (so 3 + (4 -1) = 6)

Does this make sense ?

dc42

@sylvaindc said in Duex4 v0.2a (with Duet 0.6):

Thanks @Phaedrux and @dc42!

I'll be having some fun with these documents. I'll document my findings here in case some archeologist ever stumbles over the 3rd known Duex4

Quick question that remains is a hardware one, can I just hook up the 24v fan to the heater pins, or do I need to add a cap in parallel or something to ensure proper PWM?

Just hook it up.

sylvaindc

@dc42 said in Duex4 v0.2a (with Duet 0.6):

@sylvaindc said in Duex4 v0.2a (with Duet 0.6):

I have @dc42's IR leveling meter hooked up to my Duet 0.6, using a pin on the expansion header https://miscsolutions.files.wordpress.com/2015/05/duet0-6-brd_0-781.png (Pin AD12 if I'm not mistaken). Does that just loop through to AD12 on the J7 EXPANSION1 header of the Duex4?, or should I find an other solution?

AFAIR, it just loops through.
Update: according to http://blog.think3dprint3d.com/2015/04/duex4-v02a-minor-updates.html AD12 does not loop through ( I guess it used to on the previous board). It is now exposed via the J16, which is the same jumper as we connect the ground wire to.

I can confirm that the IR sensor works as it should via the Duex4 board.

sylvaindc

@dc42 said in Duex4 v0.2a (with Duet 0.6):

@sylvaindc said in Duex4 v0.2a (with Duet 0.6):

Thanks @Phaedrux and @dc42!

I'll be having some fun with these documents. I'll document my findings here in case some archeologist ever stumbles over the 3rd known Duex4

Quick question that remains is a hardware one, can I just hook up the 24v fan to the heater pins, or do I need to add a cap in parallel or something to ensure proper PWM?

Just hook it up.
Sadly the 24v fans are still in the mail, but I went ahead and set it up in config.g:

M106 P0 T45 H1 S255 L1.0	; Existing fan on main Duet0.6 board
M307 H6 A-1 C-1 D-1	        ; Disable Heater 6 
M106 P1 H1 S255 L0 A6	        ; Reuse Pin: 23, Label: PC21, DuePin: D9, RepRapFirmwareUsage: heat[5] / E4_PWM as Fan

Sadly I dont see any change to the web frontend. I can only see one fan, and only if I select Tool 0.

Is there a way to see all fans in the web front-end?

Phaedrux

You won't see thermostatically controlled fans on the web interface.

sylvaindc

@Phaedrux said in Duex4 v0.2a (with Duet 0.6):

You won't see thermostatically controlled fans on the web interface.
Cool, that explains it!

sylvaindc

The plot thickens...
I hooked up the Duex4, IR probe work, but the Stepper on E1 doesnt.

So I decided to do a M115:

m115
FIRMWARE_NAME: RepRapFirmware for Duet FIRMWARE_VERSION: 1.26.1 ELECTRONICS: Duet 0.6 FIRMWARE_DATE: 2020-02-09b1

My Google-fu showed a few people who had the same issue, but I cant find a solution... Does anyone have an idea, am I doing something wrong, or is the Duex4 just no longer supported in 1.26?

Phaedrux

Can you pos the results of M122?

sylvaindc

@Phaedrux said in Duex4 v0.2a (with Duet 0.6):

Can you pos the results of M122?

Sure thing!

M122
=== Diagnostics ===
RepRapFirmware for Duet version 1.26.1 running on Duet 0.6
Used output buffers: 1 of 16 (16 max)
=== System ===
Static ram: 44212
Dynamic ram: 42732 of which 3168 recycled
Stack ram used: 1080 current, 2564 maximum
Never used ram: 5628
=== Platform ===
Last reset 00:09:12 ago, cause: power up
Last software reset at 2020-10-22 23:03, reason: User, spinning module GCodes, available RAM 5004 bytes (slot 0)
Software reset code 0x0003 HFSR 0x00000000 CFSR 0x00000000 ICSR 0x00000000 BFAR 0xe000ed38 SP 0xffffffff
Error status: 4
Free file entries: 10
SD card 0 detected, interface speed: 21.0MBytes/sec
SD card longest block write time: 12.3ms, max retries 0
MCU temperature: min 10.0, current 26.8, max 27.3
Date/time: 2020-10-22 23:23:27
Slowest loop: 69.21ms; fastest: 0.10ms
I2C nak errors 0, send timeouts 0, receive timeouts 0, finishTimeouts 0, resets 0
=== Move ===
Hiccups: 0, FreeDm: 100, MinFreeDm: 100, MaxWait: 0ms
Bed compensation in use: none, comp offset 0.000
=== DDARing ===
Scheduled moves: 0, completed moves: 0, StepErrors: 0, LaErrors: 0, Underruns: 0, 0
=== Heat ===
Bed heaters = 0, chamberHeaters = -1 -1
=== GCodes ===
Segments left: 0
Stack records: 1 allocated, 0 in use
Movement lock held by null
http is ready with "M122 " in state(s) 0
telnet is idle in state(s) 0
file is idle in state(s) 0
serial is idle in state(s) 0
aux is idle in state(s) 0
daemon is idle in state(s) 0
queue is idle in state(s) 0
autopause is idle in state(s) 0
Code queue is empty.
=== Network ===
Free connections: 15 of 16
Free transactions: 23 of 24
Locked: 0, state: 4, listening: 20071bf4, 0, 20071bd8

Phaedrux

So the IR probe is connected to the duex4 and works? But the stepper doesn't?

sylvaindc

@Phaedrux said in Duex4 v0.2a (with Duet 0.6):

So the IR probe is connected to the duex4 and works? But the stepper doesn't?

Yea, but that is not so strange given that AD12 just physically loops to the J16 connector.

I'm starting to think I need to tell the board or the firmware that the Duex4 is connected

dc42

There have been no intentional changes to the DueX4 support, but it hasn't been tested for many versions. Have you tried the other motor outputs on the DueX4?

RRF does not detect the DueX4 the way that it detects a DueX5, so you will not see it reported in the M115 response.

sylvaindc

@dc42 Thanks for your response, let me try the other ports

Unsolved Duex4 v0.2a (with Duet 0.6)