The 3D Potter guys would probably enjoy free advertising (not affiliated with them, but I know they use duet+expansion).

Their stuff is definitely on the weird end of the spectrum, but I'm curious to see what else is posted here.

@tletourneau

A Hypercube is just one specific printer design that uses the CoreXY kinematics/belt layout. There are many others such as:
-Voron
-V-King
-D-Bot
-V-Core
-RailCore II
-Hypercube Evolution
-Many other lesser known printers

@bricoletout
Just wanted to make sure you know about this printer: https://www.projectr3d.com/shop/p/daedalus

It checks all of your boxes and is ready to go!

I want one

Your only option, that won't cause issues with your thermocouple readings is to put an inline thermocouple connector.

These connectors can be purchased from Omega Engineering here:
Miniature Size Thermocouple Connectors

Make sure to select type K, with the IEC color code.

I would put the splice pretty close to the extruder, that way you can run the extension cable the whole way and have the connector accessible if you ever need to work on the hotend.

You can find thermocouple extension wire here:
Thermocouple Extension Wire
Or Here:
Stranded K-type Thermocouple Wire AWG 24 with Kapton Insulation Extension 5 yard

I know it's probably more than you were planning on spending, but if you want to use a thermocouple, then it's kinda your only option unfortunately.

-Tim

@skivvy I would change that to, a restaurant with a menu of the length of a Bible that has the 8 items you want, but they are all scattered amongst it's many pages, and it takes a while to get your order, and you don't know if those are actually the right items, and if they aren't cooked right, you have to go back to the restaurant supply company to fix it rather than have the sheff fix it...

Reprapfirmware is like a buffet that's cooked perfectly has everything you need to customize right in front of you.

I just thought I would bring/post about a connector I found that Molex makes that I think would work well for hotend connections, as well as elsewhere on my printer. What does everyone prefer to use for their hotend heater thermistor, and fan connections out by the extruder? I know the Voron guys like the microfit 3.0, and Lulzbot had the normal dupont style pins, some people use JST on daughter boards.

Molex makes some crimpable wire to wire connectors that are kinda cool (available on digikey). They call them ditto connectors since there is only one kind of crimp and one kind of housing (no male and female, but insertion is one way). Here's a video: https://www.youtube.com/watch?v=R-sWcdPl7Dc

They make 2.5mm pitch connectors, so pretty compact for what they are: https://www.digikey.com/en/products/detail/0368770004/WM10902-ND/5114214?itemSeq=354314114

Any thoughts? Is there any connector that is ideal that I just haven't heard about?

Thanks in advance.
-Tim

https://duet3d.dozuki.com/Wiki/Using_M581_-_External_Triggers_and_Building_a_Control_Panel

Then you could point that to a gcode file with M25 in it.

@zapta
That's understandable, with this really being focused to the hotend, I guess I would be able to connect a fan outputs to another fan outputs if I wired them to two pin connectors. Looking at the size of everything, there really isn't much difference so I'll probably buy some more microfit 3.0 connectors (they are basically the same size as nanofit, weirdly enough).

I just thought I would bring/post about a connector I found that Molex makes that I think would work well for hotend connections, as well as elsewhere on my printer. What does everyone prefer to use for their hotend heater thermistor, and fan connections out by the extruder? I know the Voron guys like the microfit 3.0, and Lulzbot had the normal dupont style pins, some people use JST on daughter boards.

Molex makes some crimpable wire to wire connectors that are kinda cool (available on digikey). They call them ditto connectors since there is only one kind of crimp and one kind of housing (no male and female, but insertion is one way). Here's a video: https://www.youtube.com/watch?v=R-sWcdPl7Dc

They make 2.5mm pitch connectors, so pretty compact for what they are: https://www.digikey.com/en/products/detail/0368770004/WM10902-ND/5114214?itemSeq=354314114

Any thoughts? Is there any connector that is ideal that I just haven't heard about?

Thanks in advance.
-Tim

@bricoletout
Just wanted to make sure you know about this printer: https://www.projectr3d.com/shop/p/daedalus

It checks all of your boxes and is ready to go!

I want one

@Phaedrux I am running 3.1.1 and it seems to be working very well (I was having issues with the much older version of DWC).

Do you think that the newer version of DWC could cause this even with no client connected?

-Tim

@dc42 That's the thing, I did not intentionally reset the board before sending the m122, that was how it was when I walked up to the machine in the morning. The power up was immediately following the reset if I read the timing correctly.

This is one of those silly Fusion3 F400s, I will disconnect the paneldue and reset button connected to the expansion connector and try again, also will see if I can scrounge up a brand new sd card.

Anything else I can do to debug? Doesn't M111 need a PC connected via usb to receive the debug messages?

-Tim

Thanks for the response!

The effect of this error is a reboot of the controller loosing the print position. It has happened twice in a row, same print sliced differently, so completely different gcode. It happens about 12 hours into the print repeatably (but not at a specific location). No signs of heater or fan issues as well. If it was a heater fault, it would stop due to the heater fault.

No error message, but when I check the printer in the morning, it just is running normally, but with the print head fused to where it stopped printing.

Thanks,
Tim

Hi,
There is a printer at my work running an older Duet 0.8.5 and I updated it to the latest firmware the other day while rebuilding it to improve it's quality. I am running the latest version of DWC and everything seems to be working well, except for it seems to be stopping almost 12 hours into prints pretty reliably and I am struggling to find the cause. Overall, it works wonderfully until this point.

Here are some setup attributes so you guys don't have to ask:

1. Freshly full formatted SD (but not brand new) inserted directly
2. Power supply 24V
3. corexy - 144 steps per mm (using one stage of belted reduction)
4. using two extruders with a mix ratio of 1:0.995 (one just to feed the material)

Any input would be greatly appreciated. See below for M122.

m122
=== Diagnostics ===
RepRapFirmware for Duet version 1.26.1 running on Duet 0.85
Used output buffers: 3 of 16 (11 max)
=== System ===
Static ram: 44212
Dynamic ram: 42716 of which 3184 recycled
Stack ram used: 136 current, 3724 maximum
Never used ram: 4468
=== Platform ===
Last reset 10:46:28 ago, cause: power up
Last software reset at 2020-09-09 10:53, reason: User, spinning module GCodes, available RAM 4468 bytes (slot 0)
Software reset code 0x0003 HFSR 0x00000000 CFSR 0x00000000 ICSR 0x00000000 BFAR 0xe000ed38 SP 0xffffffff
Error status: 0
Free file entries: 10
SD card 0 detected, interface speed: 21.0MBytes/sec
SD card longest block write time: 0.0ms, max retries 0
MCU temperature: min 33.1, current 33.2, max 33.6
Date/time: 2020-09-10 08:18:59
Slowest loop: 3.19ms; 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 idle 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, 0

https://duet3d.dozuki.com/Wiki/Using_M581_-_External_Triggers_and_Building_a_Control_Panel

Then you could point that to a gcode file with M25 in it.

You would need to find servo drives that take step and direction inputs, and then use an expansion board for external drives. The duet does not support driving a linear servo directly, as it has integrated stepper drives. You could probably use linear steppers as long as they are bipolar, 4 wire motors.

With that being said, what is the need for using linear motors? Essentium uses linear motors for their "HSE 180" system and their prints look awful, disgusting, and just depressing. At least, the one I saw in person, and in their videos.

Are you running a 12V power supply? If so, my guess is that your voltage is dropping too low, causing the duet to trigger a pause, re-home, then restarting your print. This is the only logical explanation.

Check to see what your M911 settings are, as well as send an M112 to see if your power supply fell below the voltage set in M911.