Posts made by Heartleander81

@Argo ok. Nice test from him. I find for my Hevort 0.02 smooth time and 0.044 PA. Worked nice. I hope my Info can help Duet.

@Argo said in Issues with pressure advance since RRF 3.4:

So altering the smooth time value did improve your corners and PA alone did not?

PA alone didn't make the whole corner look nice. See the picture with the corner sticking out in the direction of travel. Only with the change of smooth time and renewed PA, which was then higher, did the corners become so clean.

@dc42
@Phaedrux

I couldn't find any differences between 3.3 and 3.4.x, but I still have a picture of a test where the corners became nice with PA. As now with klipper. The Artikel from sebkritel is that who I read.

@R4ffers oh yes.

@dc42 is there also something like pressure advance smooth time under RRF? A few clippers have the problem with the high smooth time, but those who have problems are mostly DirectDrive extruder users. Maybe that's an approach you can follow.

Update on my conversion to Klipper.
At first the corners didn't look any better than with RRF until I came across a post today that refers to extruder smooth time.
The standard is with Klipper 0.04, which I also use.
Switched to 0.01 and the corners look awesome.
In the article it was said that some extruders can not cope with the smooth time and then you have to get smaller. see my pictures.

With smooth time 0.04

With smooth time 0.01

@dc42 Many Thanks. Unfortunately, I'm not an electrician and can't read anything out of the schematic. If it were a blueprint of machines I could do that

Hi
Which Sens resistor value is set in the RepRap firmware for the TMC5160?

@Argo

I will only use it as an emergency backup. Sure if RRF fits again I'll switch back, I think. I'm already a fan of Duet.
But to test whether my hardware fits, I'll try Klippers. The last parts will arrive in the days for the test with me.

@Phaedrux

Yes, definitely.
If I increase or decrease the extruder pressure, I can influence whether there is more or less overshoot. But I can't get rid of it completely.

@gloomyandy no, on Duet 3 6hc.

I think that not only z but all axles brake harder. But I'll record it and open another topic and ask if Duet wanted it that way.

@gloomyandy if you don't have 3.3 try a higher Z jerk and acc. flash 3.4 and the axis runs much more aggressively. could this also be the case for x and y?

I could only find out with firmware 3.3.0 that, for example, my Z-axis ran softer with the same jerk and ACC and not as hard as with 3.4.x Maybe you should look in the direction of the braking behavior? If I get it in time I will flash my Z axis again to 3.3.0 and then film it again with 3.4.x.

@Argo
I have a Duet 3 6hc running on Klipper. But I can't test it because otherwise I would have to lay 13 cables to the print head and unfortunately I don't have the time to do so.

I can reduce the corners by going very high with the retract and detract. Before I consciously noticed this for the first time, I had PETG 0.2mm with 20mm/s retract. Now if I go to 60 or even 80mm/s the corners get smaller.
Also, the corners get smaller when I slice at <60mm/s.
I've already tried a lot, like reducing values ​​with ACC and Jerk, but all without success.
If I didn't have to run so many cables to my Toolhead, I would swap my Board to rule out that it's the Hardware. Because I have a Board as a replacement on which the Klipper is flashed as a test.

@gloomyandy
That's right, the Z seam is on the bottom left.

Is Edit with Config.g data

@gloomyandy

The problem is that the Pa is already increased in the pictures. I used to always use a Pa of 0.035.
In the pictures you can see with 0.045 Pa that the walls open in front of the corner but the corner is still sticking out. No longer at a 45° angle but in the direction of travel.
If I remember correctly without PA they stand out at a 45° angle.

@Argo

3.3.0 PA 0.045 Extruder onToolboard

3.3.0 PA 0.045 Extruder on Mainboard

3.4.4 PA 0.045 Extruder on Toolboard with IS

3.4.4 PA 0.045 Extruder on Toolboard without IS

3.4.4 Extruder on Mainboard with IS and without IS look the same

Printed clockwise.
Outer walls, inner walls, bottom layer and top layer all at 200mm/s.
First layer with 90mm/s .
The part is 2mm high with the dimensions 40x40mm.
Layer height is 0.2mm.

; Drive direktion
M569 P0.1 S0 D2 H20 V2000 				; X physical drive 0.1 goes backwards
M569 P0.2 S0 D2 H20 V2000 				; Y physical drive 0.2 goes backwards
M569 P0.0 S1 D2 							; Z1 physical drive 0.0 goes forwards
M569 P0.4 S1 D2 							; Z2 physical drive 0.4 goes forwards
M569 P0.3 S1 D2							; Z3 physical drive 0.3 goes forwards
M569 P0.5 S0 D2 							; (free) physical drive 0.5 goes forwards
M569 P20.0 S1 D2						; E physical drive 0.0 Driver0 tool goard goes forwards

; Motor mapping and steps per mm
M584 X0.1 Y0.2 Z0.0:0.4:0.3 E20.0			; set drivers mapping
M350 X16 Y16 Z16 I1						; configure microstepping 1/16 with interpolation
M350 E16								; configure microstepping 1/16
M92 X80.40 Y80.40 Z800.00 E705.485		; set steps per mm

; Drive currents
M906 X1300 Y1300 Z950 E900 				; set motor currents (mA)
M906 I80								; motor idle factor in per cent
M84 S120 								; set idle timeout

; Acceleration and speed
M566 X1800.00 Y1800.00 Z90.00 E3000.00 P1	; set maximum instantaneous speed changes (mm/min)
M203 X30000.00 Y30000.00 Z900.00 E15000.00	; set maximum speeds (mm/min)
M201 X6000.00 Y6000.00 Z100.00 E1800.00		; set accelerations (mm/s^2)
M201.1 Z40.00								; Homimg smooth ACC


; Accelerometer
M955 P20.0 I10 S1344 R10			; R12 Accelerometer 20:0 type LIS3DH with orientation 10 samples at 1344Hz with 10-bit resolution

; PA, IS
; At config-override.g

@Phaedrux ok have 3.3.0 on MB and Toolboard. Now I test with is on is off extruder on MB and the same with Toolboard

@Phaedrux sudo apt-get install duetsoftwareframework=3.3.0 doun't work

@Phaedrux

Sorry I doun't understand what I must do.
The git can I clone but what now?

I think I must install ore copy files on the pi but what and who.

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