@darylprice said in My 6HC seems to think I have a CAN connected which I do not:

M569.1 P1.0 S0 ; Disable CAN on board 1
M569.1 P1.1 S0 ; Disable CAN on board 2
M569.1 P1.2 S0 ; Disable CAN on board 3

M569.1 is used for closed loop control, and you are referencing 3 drivers on a CAN connected board at address 1.
https://docs.duet3d.com/en/User_manual/Reference/Gcodes#m5691-stepper-driver-closed-loop-configuration
Where did that config come from?

If you delete those lines from the config the message will not be shown.

@br7408 said in IR Height Sensor:

It certainly looks to be a bit flaky. I think it should be replaced.

How do I initiate obtaining a replacement?

Is a Duet3D IR probe? Is it less than two years old? Where did you buy it from?
Here's the terms of the warranty: https://www.duet3d.com/page/warranty-policy

Ian

@qlqlo, the 6HC will draw from the 48V supply only a small fraction of the current that they supply to the stepper motors. This is because the drivers reduce the voltage from 48V to the voltage actually needed by the motors (which at standstill is just a few volts) and the current drawn from 48V reduces in the same proportion. When the motors are moving fast they need more voltage, but the phase angle between voltage and current also has the effect of reducing the net current drawn from 48V. So your six stepper motors will likely draw only about 3A total from 48V when they are at standstill, and a bit more when they are accelerating.

If your SSRs will work with control voltages down to 3V then they will probably just about work with the IO_OUT outputs. Some alternatives include:

Use the LASER/VFD output for one of them, which is 5V Use the PS_ON output for one of them, which is open drain and can conveniently be used with 5V Use high current OUT ports to drive them, with series resistors to reduce the output voltage from 48V to be within the working range of the SSR Use low current OUT ports to drive them with the voltage selection jumper on those ports set to 12V.

HTH David

@jasko said in SD CARD PROBLEM DUET 6HC V1.01:

SD card 0 detected, interface speed: 12.5MBytes/sec

It says the card is detected, but the interface speed is slow for a 6HC; it should be 25MB/sec. This may suggest an issue with the SD card or the socket. As you have tried other SD cards, can you post a picture of the SD card socket and the components around it?

If you remove the card, does M122 then report it starting in SBC mode? If the SD socket has failed, and the board is over 2 years old (ie out of warranty), you may be able to run it in SBC mode.

Ian

@ComedianTF2 glad you have resolved it.

@AlexKid theres a bug fix version already for the duet 2 ethernet. see here https://forum.duet3d.com/post/349876

@jay_s_uk Makes sense now. Thank-you!

@dc42 good news - Wired up my 2nd extruder - and this time I connected the Inductive Z probe ( 24V, 2.27V output) to the Filament Monitor 3.3v compliant connection IO1.in - and it seems to trigger ok.

So I think that is the solution unless I decide to add filament monitors. So thanks for your help.

Next issue is work out is how to handle 4 different Inductive Probes, a Switch Type Touch probe plus a positioning probe.

8B030F4C-EB06-4D69-8ACE-4E9AE33E28D6.jpeg

@c4tn1p I use two lengths of this https://uk.rs-online.com/web/p/twisted-pair-multicore-data-cable/6604052. One is for the 8-pin connector, the other for the 6-pin connector with two conductors in parallel used for each of the heater wires.

It is essential to provide strain relief for these cables. I printed this SmartEffectorStrainRelief2.3mf and used zip ties to secure the cables to the top.

@droftarts

All the fans I am running are 24v.
The 2 pin one I think fried say 0.5a on it - I connected to Out2 on the black wire and +Vout on the red wire (in parallel to a 3 pin fan on the same two wires (plus also out2.tach).

I still have another one of these two pin fans on the other print head that is still connected to the Klipper board at the moment - so will check what voltages are going to that.

Will try running the fans individually connected next to see if it is just both fans being on the same output that is causing them to break.

@droftarts
Thanks Ian

/Bengt

@aetherialdesign if you haven't already done so, make sure there is a delay command (e.g. G4 S2) near the start of the main board config.g file, before any command that refers to the expansion board. This is to make sure that the expansion board has time to start up and switch into expansion mode before the main board tries to communicate with it.

Awesome thanks!!

@HeidiH you can turn off the heater monitoring for that sensor using the M143 command

@droftarts thanks for this very detailed write up, and thanks again for putting so much effort into this! I realy appreciate it. Unfortunately I'm dealing with some health issues at the moment but should be able to test in a week or two. Thanks again!

@misterjtc Hi, I would appreciate if you share how did you find out stepper motor currents? Are these currents for original creator pro stepper motors?
It seems to me that config from github here is a bit off
I have Y axis layer shifts sometimes and extruder motors at 700 are clicking when they should not