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