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    Topics created by r3cvr

    • r3cvrundefined

      Crash in firmware on M956 3.4.5->3.5.0-beta.4

      General Discussion
      • • • r3cvr
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      r3cvrundefined

      @dc42 It may have been a signal issue the first time, however I don't think it is anymore when it won't stop crashing despite rebooting itself. I see when it gets stuck - I had the usb console hooked up hoping to see some output on it, which means that the duet wasn't completely power cycled even when I attempted to hard power cycle it. Anyway, there is some left-over state maybe in the lis3dh itself that causes this crash even after it reboots, and there is no longer a signal issue, at least temporarily.

    • r3cvrundefined

      Stall detection works, but not during moves to hard stops?

      Duet Web Control
      • • • r3cvr
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      r3cvrundefined

      @gloomyandy The moves that do not trigger stall detection are manual moves from DWC, or issuing gcode to the console like G91; G1 X25 F5000 to move the toolhead (or Z platform) past the physical stops so the motor hard stalls.

      Machine is a FlashForge Creator Pro with Duet2Wifi 3.4.5

      An additional experiment I tried was setting the motor stall up as an axis endstop. That didn't work either. Although I haven't been able to gather from the documentation if two endstops on a single axis are supported (microswitch and one end and stall detection at the other).

      Config attached. config-2.g

    • r3cvrundefined

      Solved PanelDue 7.0i erased and USB com port won't appear?

      PanelDue
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      jay_s_ukundefined

      @r3cvr i've asked @droftarts to update the docs

    • r3cvrundefined

      G29 Z probe already triggered improvement possible?

      Firmware wishlist
      • • • r3cvr
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      dc42undefined

      @r3cvr, good idea, I'll add this to the firmware wish list.

    • r3cvrundefined

      How much power can I pull from the z probe header on DuetWifi?

      Duet Hardware and wiring
      • • • r3cvr
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      dc42undefined

      The critical figure will be the power dissipation in the 3.3V regulator (U2). If It gets too hot it will go into thermal shutdown. 100mA should be no problem. 200mA may be ok.

    • r3cvrundefined

      blobs due to firmware stalls

      Tuning and tweaking
      • • • r3cvr
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      DocTruckerundefined

      I don't think the gcode is commanding any instantaneous moves? I've commented on your two examples below. By skipping the two travels you'd under extrude. For the sake of this example I've assumed a 0.2mm layer thickness.

      @r3cvr said in blobs due to firmware stalls:

      This is what the slicer is producing for 0 retraction:
      G1 X5.367 Y-61.649 E0.0442 ; Extrude to (5.367, -61.649) using 0.0442mm of filament.
      ; layer 44, Z = 8.750
      M105
      G1 X5.371 Y-61.649 F9000 ; Travel to (5.371 -61.649) Feed rate changing to 9000mm/min. Moving 0.004mm.
      G1 Z8.750 F6000 ; Move to z = 8.750 with feed rate changing to 6000
      G1 X6.299 Y-61.657 E0.0388 F1890 ; First extrusion of 0.928mm with feedrate changing to 1890 mm/min. Extruding 0.0388mm of filament.

      I think this is what is should be producing:
      G1 X5.367 Y-61.649 E0.0442 ; Extrude to (5.367, -61.649, 8.550) using 0.0442mm of filament.
      ; layer 44, Z = 8.750
      M105
      G1 X6.299 Y-61.657 Z8.750 E0.0388 F1890 ; Extrude to (6.299, -61.657, 8.750) moving 0.953mm with feed rate changing to 1890 mm/min over move. Extruding 0.0388mm of filament.

      Edit: All moves would be limited by the firmware to the settings in your config.

    • r3cvrundefined

      Killed C87 on my DuetWIFI, how bad is it?

      Duet Hardware and wiring
      • • • r3cvr
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      dc42undefined

      C87 is connected between one of the Z motor outputs and ground. Its purpose is to help protect the Z driver if the motor is disconnected when under load, and to reduce EMI. Revisions 1.0 and 1.01 of the Duet WiFi didn't have those capacitors.

      If you want to replace it, it is a 1nF X5R or X7R 0603 ceramic capacitor rated 50V or greater.