@jens55 said in Where to buy quality SSR?:

Who needs constant compensation? If you have a quality printer then nothing will change from print to print. You do a single surface map and that is good until you start messing with the build surface (for example replacing the glass surface).
If you have a questionable quality printer than a flat build surface isn't going to eliminate the compensation.

Mostly true and I was referring to my very first printer which was a RepRap Mendel kit, all built from threaded rod, printed parts and a very flimsy bed. Things have moved on somewhat from those early days and the start of the RepRap movement. But it should not be necessary to do a surface map every time you change the glass. I swap glass build plates all the time and never do any form of flatness compensation. Also, I still see many people using multiple, individually driven lead screws which can jump by up to 4 full steps every time the power is cycled. So although their flatness compensation may not vary, their levelling will need to be re-adjusted or compensated every time the power is cycled. Maybe not "constant" re-adjustment but frequent enough to be bothersome IMO.

@jay_s_uk

i experimented a bit removing that command but didnt have much luck resolving the issue. i think i finally have it working, using your advice i removed the G28 and replaced with a G30 at the end of bed.g and that seemed to give the behavior expected. it completes the cycle fully.

M290 R0 S0 ; clear baby stepping M561 ; reset all bed adjustments M400 ; flush move queue ; echo "Running bed4point.g" ;M558 F60 A6 ;A3 ; fix probe speed to 1mm/s ;G90 ;G4 P250 if !move.axes[0].homed || !move.axes[1].homed || !move.axes[2].homed echo "not all axes homed, homing axes first" G28 M401 ; deploy Z probe (omit if using bltouch) G30 P0 X30 Y20 Z-99999 ;X30 Y20 Z-99999 ; probe near a leadscrew G30 P1 X155 Y276 Z-99999 ;Y282 Z-99999 ; probe near a leadscrew G30 P2 X279 Y20 Z-99999 S3 ; probe near a leadscrew and calibrate 3 motors echo "Current rough pass deviation: " ^ move.calibration.initial.deviation while move.calibration.initial.deviation > 0.005 if iterations >= 5 echo "Error: Max attemps failed. Deviation: " ^ move.calibration.initial.deviation break echo "Deviation over threshold. Executing pass" , iterations+1, "deviation", move.calibration.initial.deviation G30 P0 X30 Y20 Z-99999 ; probe near a leadscrew G30 P1 X155 Y276 Z-99999 ; probe near a leadscrew G30 P2 X279 Y20 Z-99999 S3 ; probe near a leadscrew and calibrate 3 motors echo "Current deviation: " ^ move.calibration.initial.deviation continue echo "Final deviation: " ^ move.calibration.initial.deviation G0 X155 Y155 Z10 F9000 G30 ;G28 Z M402 ; retract probe (omit if using bltouch)

@resam Sorry for the late reply! I am no longer using RRF, so I can't test your update. Thank you for keeping me in mind, though!

@jay_s_uk Seems you are right. No problem, I can do that.

@re_tour Thanks for looking twice: It is almost impossible to diagnose a specific component from a distance, so I’m glad you found the culprits.

I hear a bit strange sound sometimes during printing, like someone was pounding on the table very slightly …

Hm, sounds familiar 🤔

@o_lampe Thank you. This solved my problem.
Kind Regards
Poul Erik

@Falcounet yep I got /dev/spidev0.0 /dev/spidev0.1 to show up an got them merged into the current kernel passed in the bufsiz on the grub line options to the kernel cuz the modprobe.d method doesn't work. Just would not talk. Error 19. Maybe I'll get curious in few days and go for another round with it.

@MortenMod hey man. Hit me up if you need help.

@Phaedrux I found the problem: the temperature was expanding the probe casing, and the probe was somehow "faulty" (not really, the problem was n the cable, despite it was not broken, my homing routing was hitting the cable base and that must have loosen something in the conection with the electroncs, and that problem only showed when everything was really hot). Also this was triggered because of the histeresis of the probe, the faulty connection caused by the temperature expansion together with the histeresis, made the probe to sense and then stay on the triggered state)

@o_lampe How tall is tall?

I have found that ABS printed in vase mode works OK without a heated enclosure, but line width matters. I've printed with a 0.4 mm nozzle up to about 250 mm high without problems.

If you try to print a very tall object with a narrow line width, the object will distort because of its own weight and eventually the nozzle will miss the previous layer.

If you try to print a vase with straight sides (like a tall rectangular shape) the sides will be wavy due to the plastic shrinking as it cools. Curves are best.

Testing these to see if it gets better (what is the common name?) Vantskruv in Swedish.

DSC_0410.JPG

@Phaedrux Got it working, Thank You.

@Shoki
Have you done a PID tuning for the hotend with the fan running full blast? In another thread, I read it was running at only 70% during PID tune...

Please post your full config.g and the results of M122 and M98 P"config.g" so we can see a fuller picture of your setup. Perhaps also post your homing files and tool change files.

For reference: https://docs.duet3d.com/en/User_manual/Connecting_hardware/Motors_choosing

@Dizzwold said in Possible corrupt sd card, G29 Network Error:

In M950 shouldn't my bed heater be H0 (H zero), rather than T0 (T zero), and my nozzle be T0 (T zero) instead of T1?

No.

T When creating a heater: temperature sensor number, required (see M308). When creating a LED strip: LED type (optional): 0 = DotStar, 1 = RGB Neopixel (default), 2 = RGBW Neopixel. DotStar LEDs can normally be assigned only to an output intended for them.

https://docs.duet3d.com/en/User_manual/Reference/Gcodes#m950-create-heater-fan-spindle-or-gpioservo-pin

For my first printer, I went for low price. For my second and following printers, I went for reliability. (I use printers for work. I have other things to do than babysit a printer. I appreciate a fast printer, but if I really need more output, I buy more printers and/or plan better.)

@dc42 This duet behavior is now clear. I will connect heaters in parallel, current will be less than 5A. Thank you!

@bwoods inverse time mode will be supported in all modes, not just CNC.