Duet 2 v1.02 not responding

thomasvanderwal

@Phaedrux I'm getting close.
The print bed is still a problem. It is not flat. Te clips are bend.

I printed something and it looked like it. But still not very good.

The calibrating is not good yet due to the print bed.

Phaedrux

@thomasvanderwal said in Duet 2 v1.02 not responding:

G30 S-1
Stopped at height -0.375 mm

Ok, so you should change your G31 command in your config.g to G31 X0 Y0 Z-0.375

Were you able to get all 3 sides of the probe to register a probe trigger?

thomasvanderwal

@Phaedrux yes the trigger works over the hole plate. Where I push It, the trigger response with m119.
It Will be a hard task to get the plate straight. Stupid metal pins are bend.

Phaedrux

I'm not exactly sure what you mean with the bed plate and the metal pins, but the delta calibration and mesh compensation should be able to handle some slight variance.

thomasvanderwal

@Phaedrux in my last picture you See the glass plate. At the back a metal thing is slightly bend. The plate gets a little stuck in the metal frame. So the plate is not levelled well.

thomasvanderwal

@Phaedrux I'm really close now. But the calibration is not going well. It seems that 1 side is slightly lower than other. With the delta calibration button it gives errors:

Error: Compensation or calibration cancelled due to probing errors

Error: G30: Probe already triggered at start of probing move

Is there a way to calibrate manually?

droftarts

@thomasvanderwal When the nozzle moves to different points on the bed during delta calibration, is it hitting the bed? Most likely it needs to lift higher between probe points. In your config.g, uncomment this line (remove ; from the beginning):

;M558 H30 ;*** Remove this line after delta calibration has been done and new delta parameters have been saved

The probe will lift higher between each probe point, so it won't hit the bed but will take a bit longer, but you should then get an initial calibration.

If that doesn't help, please post a video of what is happening.

Ian

thomasvanderwal

@droftarts Oke this seems to work.

But my print is still letting lose on the bed. What can I do about that.
Temp bed is 60deg. Or is PLA not good anymore

thomasvanderwal

@droftarts what about M557?

For a round printbed diameter 20cm?

M557 R95 S30

is this a good approach (chatgpt)?

droftarts

@thomasvanderwal said in Duet 2 v1.02 not responding:

But my print is still letting lose on the bed. What can I do about that.
Temp bed is 60deg. Or is PLA not good anymore

60C should be fine for PLA. Make sure the bed is clean, use Isopropyl alcohol to clean it. What is the bed surface? It seems to be textured?

what about M557? For a round printbed diameter 20cm?
M557 R95 S30

That will give a reasonable grid for bed mesh, with 7 points across the bed. You could reduce the spacing to S20. I prefer to use the P parameter to specify the number of points, eg M557 R95 P7, as it will space out the points up to the limit. See https://docs.duet3d.com/en/User_manual/Reference/Gcodes#m557-set-z-probe-point-or-define-probing-grid

is this a good approach (chatgpt)?

I generally wouldn't use 'AI' for RRF config and code. It rarely gets it 100% correct.

Ian

dc42

@thomasvanderwal said in Duet 2 v1.02 not responding:

But my print is still letting lose on the bed. What can I do about that.

After running delta calibration, manually jog the nozzle down until it just touches the bed, then look at the coordinates to see how close to Z = 0 it is. Even better, jog the nozzle until it just traps a thin feeler gauge between the nozzle and the bed, and then see how the displayed Z height compares with the thickness of the feeler gauge. Do this both at the centre of the bed and at several places around the bed (ideally at each point at which you probe the bed during delta calibration).

If the indicated height is consistently too large or too small then adjust the G31 H parameter to correct it.

If the difference between expected and indicated height varies greatly between different probe points, then you most likely have a probe system that does not have a consistent trigger height, and you should try to fix that.

Can you explain what the issue is with the bed clips? I presume they are supposed to hold the bed securely on the support below; in which case I don't see anything wrong with the one on the right in your photo. The bends in it look deliberate to me.

Perhaps it's better to continue this in a new thread, because the issue being discussed has moved a long way from the thread title.

thomasvanderwal

@dc42 Another problem. I had to change the cilinder and the heat block. Now it gives : Heater 1 fault: failed to read sensor: hardwareError

The heater gives 2000deg C. The 2 wires of the thermistor where lose in the heat block.
I connected the wires like this. So it doesn't toch the heat block.

dc42

@thomasvanderwal a reading of 2000C usually means that the wires are either shorted together or one of them is shorted to the heater block. What are those blue sleeves made of - can they take the heat?

Perhaps it's time to get a new thermistor. Is it definitely a thermistor? The M308 command for that sensor in config.g will specify the type of sensor.

thomasvanderwal

@dc42 Sensor 1 type PT100 (MAX31865) using pin spi.cs1, last error hardwareError, reading 2000.0, 2/4 wires, reject 50Hz, reference resistor 400.00 ohms

dc42

@thomasvanderwal so it's a PT100 sensor connected to a daughter board on the Duet. The 2000 reading is because it's reporting "hardware error". I suggest you try the following:

Check that the daughter board is properly seated on the Duet and the nylon support peg is in place.
Disconnect the PT100 sensor from the daughter board (make a note of which wires go to which terminals first). Then power up the Duet. If it still reports "hardware error" then the daughter board is faulty. in which case, you could try the other daughter board channel if it is free. That one uses pin spi.cs2 instead of spi.cs1.

thomasvanderwal

@dc42 still this even I plugged it to spi.cs2 and changed the code M308 S1 P"spi.cs2" Y"rtd-max31865"

Heater 1 fault: failed to read sensor: hardwareError

thomasvanderwal

@dc42 the wires have to be connected to that round thing?

They are now lose

droftarts

@thomasvanderwal You have assembled the hot end incorrectly. The nozzle shouldn't be sticking out this far, and the heater block should not be touching the heatsink:

This looks like an E3D V6 hot end. See https://e3d-online.zendesk.com/hc/en-us/articles/360017013257-V6-Assembly-Guide-Edition-2

When you replaced the hot end, did you replace the temperature sensor as well? Remove it from the heater block to be sure it's not shorting there (there's a grub screw holding it in, see the instructions above), disconnect it from the Duet, then measure the resistance of the temperature sensor with a multimeter. The reading at room temperature should indicate what kind of temperature sensor it is.

Ian

thomasvanderwal

@droftarts aha oke the wires are lose from the temperature sensor. Is this fixable?

droftarts

@thomasvanderwal Is this the original temperature sensor? Either crimping or soldering may repair it.

Ian