Printer will randomly not change layers, baby stepping
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Sometimes my printer (homemade delta w/ duet 3) will not change layers when printing. Other times it works just fine.
It will start printing the first layer, but then not go up to the second layer and just create a mess. I printed some parts yesterday just fine, then today it didn't want to again, with exactly the same settings. Baby stepping also doesn't work when this happens.
M122
M122 === Diagnostics === RepRapFirmware for Duet 3 MB6HC version 3.4.1 (2022-06-01 21:09:01) running on Duet 3 MB6HC v1.01 or later (SBC mode) Board ID: 08DJM-9P63L-DJ3S0-7JKF0-3S86T-TAJR8 Used output buffers: 1 of 40 (12 max) === RTOS === Static ram: 151000 Dynamic ram: 64456 of which 152 recycled Never used RAM 135064, free system stack 216 words Tasks: SBC(resourceWait:,0.6%,466) HEAT(notifyWait,0.0%,327) Move(notifyWait,0.0%,352) CanReceiv(notifyWait,0.0%,944) CanSender(notifyWait,0.0%,374) CanClock(delaying,0.0%,333) TMC(notifyWait,7.7%,92) MAIN(running,90.6%,1231) IDLE(ready,1.1%,30), total 100.0% Owned mutexes: HTTP(MAIN) === Platform === Last reset 00:00:57 ago, cause: software Last software reset at 2022-08-19 12:29, reason: User, GCodes spinning, available RAM 135064, slot 1 Software reset code 0x0003 HFSR 0x00000000 CFSR 0x00000000 ICSR 0x0044a000 BFAR 0x00000000 SP 0x00000000 Task SBC Freestk 0 n/a Error status: 0x00 Aux0 errors 0,0,0 Step timer max interval 133 MCU temperature: min 35.0, current 35.2, max 46.3 Supply voltage: min 23.9, current 24.0, max 24.0, under voltage events: 0, over voltage events: 0, power good: yes 12V rail voltage: min 12.2, current 12.3, max 12.3, under voltage events: 0 Heap OK, handles allocated/used 0/0, heap memory allocated/used/recyclable 0/0/0, gc cycles 0 Events: 0 queued, 0 completed Driver 0: standstill, SG min 0, mspos 1, reads 60740, writes 16 timeouts 0 Driver 1: standstill, SG min 0, mspos 1, reads 60740, writes 16 timeouts 0 Driver 2: standstill, SG min 0, mspos 1, reads 60740, writes 16 timeouts 0 Driver 3: standstill, SG min 0, mspos 8, reads 60741, writes 15 timeouts 0 Driver 4: standstill, SG min 0, mspos 8, reads 60745, writes 11 timeouts 0 Driver 5: standstill, SG min 0, mspos 8, reads 60746, writes 11 timeouts 0 Date/time: 2022-08-19 12:30:51 Slowest loop: 1.21ms; fastest: 0.05ms === Storage === Free file entries: 10 SD card 0 not detected, interface speed: 37.5MBytes/sec SD card longest read time 0.0ms, write time 0.0ms, max retries 0 === Move === DMs created 125, segments created 0, maxWait 0ms, bed compensation in use: none, comp offset 0.000 === MainDDARing === Scheduled moves 0, completed 0, hiccups 0, stepErrors 0, LaErrors 0, Underruns [0, 0, 0], CDDA state -1 === AuxDDARing === Scheduled moves 0, completed 0, hiccups 0, stepErrors 0, LaErrors 0, Underruns [0, 0, 0], CDDA state -1 === Heat === Bed heaters 0 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1, chamber heaters -1 -1 -1 -1, ordering errs 0 === GCodes === Segments left: 0 Movement lock held by null HTTP* is doing "M122" in state(s) 0 Telnet is idle in state(s) 0 File is idle in state(s) 0 USB is idle in state(s) 0 Aux is idle in state(s) 0 Trigger* is idle in state(s) 0 Queue is idle in state(s) 0 LCD is idle in state(s) 0 SBC is idle in state(s) 0 Daemon is idle in state(s) 0 Aux2 is idle in state(s) 0 Autopause is idle in state(s) 0 Code queue is empty === CAN === Messages queued 511, received 0, lost 0, boc 0 Longest wait 0ms for reply type 0, peak Tx sync delay 0, free buffers 50 (min 50), ts 290/0/0 Tx timeouts 0,0,289,0,0,220 last cancelled message type 30 dest 127 === SBC interface === Transfer state: 5, failed transfers: 0, checksum errors: 0 RX/TX seq numbers: 3007/3007 SPI underruns 0, overruns 0 State: 5, disconnects: 0, timeouts: 0 total, 0 by SBC, IAP RAM available 0x2b880 Buffer RX/TX: 0/0-0, open files: 0 === Duet Control Server === Duet Control Server v3.4.1 Code buffer space: 4096 Configured SPI speed: 8000000Hz, TfrRdy pin glitches: 0 Full transfers per second: 53.15, max time between full transfers: 93.1ms, max pin wait times: 32.5ms/23.6ms Codes per second: 1.17 Maximum length of RX/TX data transfers: 3128/996 -
@velvia
It works fine after running a G32 delta calibration. Could it be that my printer goes becomes slightly more innacurate over time? Like belts stretching etc. -
@velvia Sounds more like a pulley slipping, rather than a firmware issue. Check all pulleys are tight on the motor shafts. Otherwise
Ian
