New firmware 1.21RC3 available

deckingman

…...................................
I have been considering making M564 S0 allow movements before the printer is homed.

How would that work David? Currently M564 S0 will allow movement outside axis limits will it not? The default being S1 which constrains movement within axis limits. It would be great on a CoreXY (or Cartesian) to be able to allow movement before an axis has been homed (for reasons which others have so eloquently stated) but not at the expense of losing the constraint on axis limits after it has been homed.

resam

I fully agree with garyd9. Count me as a second vote to everything just outlined in this post.

dc42

@garyd9, thanks for explaining your position.

First, I will not be generating S2 or anything similar as standard by default in PanelDue when the movement buttons are used, because doing so would be dangerous for CNC machines. We are getting an increasing number of people using Duets to control CNCs and I must ensure that safety is the default. That's one of the main drivers for making this change. The other is that we have had a few complaints from users who have damaged their machines because movement was allowed when the printer was not homed, in one case accompanies by "my old firmware didn't let me do that". Therefore, whatever else we do, the default will be not to allow movement of an axis before it is homed.

The point that you can't home a typical Cartesian printer with a print on the plate is a good one, and suggests that a simple means to raise the nozzle/lower the bed is useful. This could be a macro or a dedicated button.

The point about moving the head to level the bed manually appears somewhat spurious to me, even ignoring the fact that RRF provides a manual bed levelling assistant, which can be used without a Z probe. For rare operations such as that, I don't see it as unreasonable to expect the user to have to do something to override the usual safety restrictions. Once you home X and Y, you can move the head in the XY plane. You may then want to jog Z to measure the height above the bed. For that, I can see that an option to allow you to jog an un-homed Z axis could be useful - although personally I would just home Z first, or use G92 to pretend it is homed.

Btw I do have a Cartesian printer, and I have been using it with this additional safety feature in the firmware for more than a week.

Coming back to M564, currently we have:

S0 - allow movement outside limits
S1 (in practice, Sn for n >= 1) - don't allow movement outside limits

I could add another parameter:

H0 - allow movement before the axis has been homed (not for Delta or Scara printers)
H1 - don't allow movement before the printer has been homed (default)

Would you be satisfied with that? After M564 H0 should movement to absolute positions be allowed, or only relative movement?

garyd9

@dc42:

First, I will not be generating S2 or anything similar as standard by default in PanelDue when the movement buttons are used, because doing so would be dangerous for CNC machines.

Understandable (but please see comments IRT paneldue later in this post.)

@dc42:

We are getting an increasing number of people using Duets to control CNCs and I must ensure that safety is the default. That's one of the main drivers for making this change.

SAFETY is a good reason.

@dc42:

Would you be satisfied with that? After M564 H0 should movement to absolute positions be allowed, or only relative movement?

Yes, that would be reasonable. It should only allow relative movements (as absolute movements make no sense when you aren't homed. How can you move to 0,0,0 absolute when you don't know where 0,0,0 is?)

~~Back to PanelDue:~~

Would you accept a pull request for PanelDueFirmware that added an option in settings, defaulting to OFF, that enabled sending "M564 H0" before any jog command? By default, unhomed jogs wouldn't work, but by enabling this setting, they would (at least on printers where M564 H0 allowed unhomed moves.)

(The code change involves adding a uint32 to FlashData, an extern function to PanelDue to access the bitflags, and the obvious change in UserInterface.cpp to set H0 before the G1 and H1 after the move.)

~~I'd also suggest the same/similar toggle be added for DWC, but I'm much more fluent with C++ … and useless with javascript.~~

Edit: No need for messing with paneldue/DWC as mentioned later in this thread.

whosrdaddy

+1 for M564 H0
@Garyd9, adding M564 H0 to config.g would be enough, no need to add an option to PanelDue/DWC.

deckingman

@dc42:

…..........................................
Coming back to M564, currently we have:

S0 - allow movement outside limits
S1 (in practice, Sn for n >= 1) - don't allow movement outside limits

I could add another parameter:

H0 - allow movement before the axis has been homed (not for Delta or Scara printers)
H1 - don't allow movement before the printer has been homed (default)

....................................

Personally, I'd be happy with that. If it just means putting M564 H1 into my config.g file which will easier than having to edit my homing files and also save me the hassle of creating a macro and more importantly, remember that I have to use it.
I appreciate the safety concern but over the years, I've become accustomed to doing things a certain way. As well as the scenarios that others have put forward, I often just want to drop the bed 100mm or so to get it out of the way when I want to change hot ends, remove the glass for cleaning, apply a coat of 3d lac without getting it on the hot end or otherwise work on the printer. So having to home it first when I don't even want to print anything would be a bit of a PITA.

garyd9

@whosrdaddy:

+1 for M564 H0
@Garyd9, adding M564 H0 to config.g would be enough, no need to add an option to PanelDue/DWC.

For some reason, I completely overlooked that M564 H0 could be left permanently enabled (via config.g.)

resam

Yes, M564 H0 would be acceptable. I probably also put it in my config.g.
Thanks!

If you really want to make me happy, please add a button in the PanelDue jog window - so this override is accessible when needed.

Catalin_RO

Regarding homing for CNC machines, I think that the truth is somewhere in the middle. For rather simple machines, with no slave axis and no extra features (like touch probes for the tool length or tool changers), homing is not needed at all. One just jogs the spindle to the desired position, based on the already positioned raw material, zeros the coordinates and starts the job. With GRBL the homing can be disabled completely and a freshly started machine, although it reports it needs homing, can be software reset and unlocked and homing is no longer needed no matter what.

Realistically now, with CNC homing is really necessary for machines with slave axis that can get out of sync (independent motors as the solution with mechanical link between the master and slave axis is much simpler for the controller) and when there are various tools installed at well defined machine coordinates.

Looking differently at it, for 3D printing it might be more important than for simple CNC machines. With 3D printing you have to print an item of a certain size and you need to know that the object won't get beyond the printable area if the origin of the print is not correctly set. With CNC you already have a big lump of raw material, at least as large as the final item, and if you know the area that the machine can "process", it is practically impossible to go beyond that (misplacing the raw material or going for a smaller piece is not considered here!).

As for the dangers of homing, the CNC world has its own! It is not unheard of using a tool longer than what is safe in the machine setup, based on the fact that one can manually jog through the obstacles to the location where the machining has to be done. Homing in such situations, although the Z-axis is almost always the first one, doesn't guarantee that the tool doesn't touch an obstacle. Allowing manual jogging without homing first would be very useful in these situations as well! (been there myself, luckily with rather inexpensive tools in the spindle!)

In conclusion, there should be a rather easy solution for jogging without homing, especially because the emergency situations are really critical! By default it should not be allowed, but a manual override solution would be great. User defined macros are acceptable from my point of view….

garyd9

@Catalin_RO:

In conclusion, there should be a rather easy solution for jogging without homing, especially because the emergency situations are really critical! By default it should not be allowed, but a manual override solution would be great. User defined macros are acceptable from my point of view….

Most (all?) of the points for movement when not homed are in non-printing situations. They occur either before a print is started (with the understanding that homing must occur before a print can start) or after a print is finished or aborted. Remember also that this is all in relation to manual movements such as jog controls, and not to any type of automated or unattended movement. The act of pressing one of the jog control buttons is always a "manual override."

garyd9

RC3 issue: Unable to simulate printing due to printer not being homed. (The irony here is that one of the first commands the gcode file is G28)

From my gcode console log:

[[language]]
6:35:45 PM    M37 P"ABS - L/Car_Ears2.gcode"
                      Simulating print of file ABS - L/Car_Ears2.gcode
                      Error: G0/G1: insufficient axes homed

Here are the first instructions in my gcode file (skipping comments) up to the G28:

[[language]]
G90
M83
M106 S0
; S3D starting gcode for LEFT extruders
;
M140 S105  ; start heating the bed (no wait) while homing
G28                       ; homeall

Additional info: The above all occurred via DWC. When I went to the physical location of the printer, I found that PanelDue was reporting that the printer was in a "simulating" status (and ended up doing an "emergency stop" via the paneldue to get control.)

CRPerryJr

Unable to upgrade Duet 0.85 to 1.21RC3 from 1.19.2 using RepRapFirmware.bin. I tried utilizing DWC firmware update method first, and it appeared to transfer successfully and reboot, but it failed come back up. I tried erasing and utilizing the Bossac method. The new firmware transfers successfully via Bossac, but causes the Duet to reboot itself after 30 seconds or so repeatedly. (I can tell because the USB drops and reconnects about every 30 seconds.) Erased and Reflashed the firmware using Bossac back to 1.19.2 and the Duet is operating normally again.

Catalin_RO

Jog controls, while being a "manual override" situation, could easily tell the controller to go beyond the hardware possibilities (printing head/spindle at coordinate 50 on one axis, and the user asks moving that axis with -100…). Thus manual override must be a "high level decision", so the controller should not accept any jog command as being such a decision by default, at least not with GUI based jog solutions.

Regarding 3D printing, I must admit that my own experience is non existent for now (not needed so far!). I do only CNC, and I do that only when there is a real a real need, not as a hobby. But I tend to understand the 3D printing problems, looking from above, as I follow the domain for many years.

Again, comparing to my every day situations, when I have to find ways to implement something in software that suits more customers, a solution to tell firmware it should no longer care about homing is clearly needed. How it is implemented is less important - it could be a 5-6 characters command or a 10K macro - it just needs to be rather simple way to access. Complex macros can be easily copy&pasted, simple commands can be turned into macros.

With 3D printing I see a lot of issues regarding printing resuming.. Worst case scenario - for a 10 hours job, the power goes away after every 20 minutes of printing. Let's consider that the printer is recovering when the power is back on, of course, with some delay. How about the missing microstepping status? Personally, I wouldn't even dare considering continuing a failed print. If really unlucky, a normally vertical wall would be just another staircase! And clearly this one would not go to heaven!

dc42

@CRPerryJr:

Unable to upgrade Duet 0.85 to 1.21RC3 from 1.19.2 using RepRapFirmware.bin. I tried utilizing DWC firmware update method first, and it appeared to transfer successfully and reboot, but it failed come back up. I tried erasing and utilizing the Bossac method. The new firmware transfers successfully via Bossac, but causes the Duet to reboot itself after 30 seconds or so repeatedly. (I can tell because the USB drops and reconnects about every 30 seconds.) Erased and Reflashed the firmware using Bossac back to 1.19.2 and the Duet is operating normally again.

Several users have reported this problem with various versions of RRF, one even with version 1.18. it's something to do with DHCP because setting a static IP address in the M552 command fixes it.

Please share your config.g file and I'll have another go at reproducing it.

dc42

@Mike:

I'm getting "Error: Attempt to seek on a non-open file." upon trying to print files from slic3r PE on 1.21RC3. The same files work OK on 1.20.

I can't reproduce this, nor find a reason for it. Can you share the GCode file? What is the filename? Does the print go ahead, or not?

resam

Weirdly I also just got this "Error: Attempt to seek on a non-open file." error.
The first line (G28 X Y) is executed, and the the print stops with this error.

I have to mention, this is not a regular gcode file from a slicer. It was generated by LaserWeb and should utilise a laser with M452 to cut paper. I tried to "fake" a few expected magic comments like layer height, slicer name, etc. but it still errors.

Here is my gcode file (manually reduced, but still shows the fault for me): https://www.dropbox.com/s/5mczpuy9vzst7jb/pew-pew.gcode?dl=0

Here my debug:

18:45:47 M122
=== Diagnostics ===
Used output buffers: 3 of 32 (14 max)
=== Platform ===
RepRapFirmware for Duet 2 WiFi/Ethernet version 1.21RC3 running on Duet WiFi 1.02 or later
Board ID: 08DDM-9FAMU-JWNSW-6J9F2-3S46N-KLJRT
Static ram used: 16144
Dynamic ram used: 100584
Recycled dynamic ram: 2056
Stack ram used: 1224 current, 8496 maximum
Never used ram: 3792
Last reset 00:01:47 ago, cause: software
Last software reset at 2018-03-09 18:43, reason: User, spinning module GCodes, available RAM 3792 bytes (slot 1)
Software reset code 0x0003 HFSR 0x00000000, CFSR 0x00000000, ICSR 0x0041f000, BFAR 0xe000ed38, SP 0xffffffff
Error status: 0
Free file entries: 10
SD card 0 detected, interface speed: 20.0MBytes/sec
SD card longest block write time: 0.0ms
MCU temperature: min 40.6, current 40.9, max 41.2
Supply voltage: min 24.1, current 24.2, max 24.4, under voltage events: 0, over voltage events: 0
Driver 0: standstill, SG min/max 0/37
Driver 1: standstill, SG min/max 0/34
Driver 2: standstill, SG min/max 0/148
Driver 3: standstill, SG min/max not available
Driver 4: standstill, SG min/max 0/160
Date/time: 2018-03-09 18:45:47
Slowest main loop (seconds): 0.155312; fastest: 0.000113
=== Move ===
MaxReps: 2, StepErrors: 0, LaErrors: 0, FreeDm: 240, MinFreeDm 236, MaxWait: 61748ms, Underruns: 0, 0
Scheduled moves: 6, completed moves: 6
Bed compensation in use: none
Bed probe heights: 0.000 0.000 0.000 0.000 0.000
=== Heat ===
Bed heaters = 0 -1 -1 -1, chamberHeaters = -1 -1
Heater 1 is on, I-accum = 0.0
=== GCodes ===
Segments left: 0
Stack records: 2 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 ===
Responder states: HTTP(1) HTTP(0) HTTP(0) HTTP(0) FTP(0) Telnet(1) Telnet(0)
HTTP sessions: 1 of 8
- WiFi -
Network state is running
WiFi module is connected to access point 
Failed messages: pending 0, notready 0, noresp 0
WiFi firmware version 1.21RC4(08b3)
WiFi MAC address ec:fa:bc:0b:fb:94
WiFi Vcc 3.33, reset reason Turned on by main processor
WiFi flash size 4194304, free heap 14944
WiFi IP address 10.0.0.42
WiFi signal strength -48dBm, reconnections 0, sleep mode modem
Socket states: 2 2 0 0 0 0 0 0
=== Expansion ===
18:45:41Error: Attempt to seek on a non-open file.

Mike

@dc42:

@Mike:

I'm getting "Error: Attempt to seek on a non-open file." upon trying to print files from slic3r PE on 1.21RC3. The same files work OK on 1.20.

I can't reproduce this, nor find a reason for it. Can you share the GCode file? What is the filename? Does the print go ahead, or not?

I did, it got buried earlier in the tread. Here it is again:

; generated by Slic3r Prusa Edition 1.39.1-beta1-prusa3d-win64 on 2018-03-06 at 18:25:08

; 

; external perimeters extrusion width = 0.45mm
; perimeters extrusion width = 0.45mm
; infill extrusion width = 0.45mm
; solid infill extrusion width = 0.45mm
; top infill extrusion width = 0.40mm
; first layer extrusion width = 0.45mm

M107
M106 P1 S0.1 I0 F500 H-1; 
M140 S110;
G28 X Y
G1 X150 Y100
M190 S110;
G30 X150 Y100
G1 X150 Y100 Z25
M104 S267 T0; 
M109 S267 T0;
M106 P1 S0.2 I0 F500 H-1; 
; Filament gcode
;M290 S0.05
G21 ; set units to millimeters
G90 ; use absolute coordinates
M83 ; use relative distances for extrusion
G1 Z0.300 F10500.000
G1 E-1.20000 F2280.00000
G1 X125.225 Y99.725 F10500.000
G1 E1.20000 F2280.00000
G1 F600
G1 X174.775 Y99.725 E2.38319
G1 X174.775 Y100.275 E0.02645
G1 X125.225 Y100.275 E2.38319
G1 X125.225 Y99.785 E0.02357
G1 X125.625 Y99.726 F10500.000
G1 X125.418 Y100.000 F10500.000
G1 F600
G1 X174.582 Y100.000 E1.00800
G1 E-1.20000 F2280.00000
; Filament-specific end gcode 
;END gcode for filament
M104 S0 ; turn off extruder
M140 S0 ; turn off bed
M107; Turn off fans
G91
G1 Z50 ; lift z
G90
;G28  Z; home all axes
M84 ; disable motors
M106 P1 S0.5 I0 F500 H-1; dim lights

It's a tiny test object, just 2 lines. The same job sliced in S3D or Slic3r PE doesn't start on the CoreXY - the execution stops after finishing the G28 command.

Edit: As for the filename it was something very generic - test_line.gcode or something similar. No special characters. The file shows up in the "G-codes" tab in DWC, no issues there.

resam

dc42: did you consider simulation mode and unhomed moves? I think I found a bug in RC3:
Simulating a print fails everytime with: "Error: G0/G1: insufficient axes homed".

I know that the file in question prints fine, because I successfully printed it the day before yesterday.

dc42

Yes, that's a known issue.

nyt

@dc42:

Yes, that's a known issue.

So how about double tap homing on G30? Possible to add behavior to match bed leveling?