Belts go slack - Twice - 15mm error

Troubleshooting
1

Not quite sure what’s going on here, but for the last two cuts the belts have gone slack early on in the cut.

Here’s the whole serial.log

Serial Messages
Index.html Version: 0.83
[MSG:INFO: Channel auto report interval set to 50 ms]
[MSG:INFO: FluidNC v0.84 (Add-setting-for-scaling-move-dist-b0d457f6-dirty)]
[MSG:INFO: Compiled with ESP32 SDK:v4.4.7-dirty]
[MSG:INFO: Local filesystem type is littlefs]
[MSG:INFO: Configuration file:maslow.yaml]
[MSG:INFO: Machine Maslow S3 Board]
[MSG:INFO: Board Maslow]
[MSG:INFO: UART1 Tx:gpio.1 Rx:gpio.2 RTS:NO_PIN Baud:115200]
[MSG:INFO: SPI SCK:gpio.12 MOSI:gpio.11 MISO:gpio.13]
[MSG:INFO: SD Card cs_pin:gpio.10 detect:NO_PIN freq:8000000]
[MSG:INFO: Stepping:Timed Pulse:4us Dsbl Delay:0us Dir Delay:0us Idle Delay:240ms]
[MSG:INFO: Axis count 3]
[MSG:INFO: Axis X (-2438.400,0.000)]
[MSG:INFO:   Motor0]
[MSG:INFO: Axis Y (-1219.200,0.000)]
[MSG:INFO:   Motor0]
[MSG:INFO: Axis Z (-100.000,0.000)]
[MSG:INFO:   Motor0]
[MSG:INFO:     tmc_2209 UART1 Addr:0 Step:gpio.15 Dir:gpio.16 Disable:NO_PIN R:0.110]
[MSG:INFO:   Motor1]
[MSG:INFO:     tmc_2209 UART1 Addr:1 Step:gpio.46 Dir:gpio.38 Disable:NO_PIN R:0.110]
[MSG:INFO: Z Axis driver test passed]
[MSG:INFO: Z2 Axis driver test passed]
[MSG:INFO: Kinematic system: Cartesian]
[MSG:INFO: Using spindle NoSpindle]
[MSG:INFO: Connecting to STA SSID:TP-Link_5CB2]
[MSG:INFO: Connecting.]
[MSG:INFO: Connecting..]
[MSG:INFO: Connected - IP is 192.168.1.106]
[MSG:INFO: WiFi on]
[MSG:INFO: Start mDNS with hostname:http://maslow.local/]
[MSG:INFO: SSDP Started]
[MSG:INFO: HTTP started on port 80]
[MSG:INFO: Telnet started on port 23]
FO: Z Axis driver test passed]
[MSG:INFO: Z2 Axis driver test passed]
[MSG:INFO: Kinematic system: Cartesian]
[MSG:INFO: Using spindle NoSpindle]
[MSG:INFO: Connecting to STA SSID:TP-Link_5CB2]
[MSG:INFO: Connecting.]
[MSG:INFO: Connecting..]
[MSG:INFO: Connected - IP is 192.168.1.106]
[MSG:INFO: WiFi on]
[MSG:INFO: Start mDNS with hostname:http://maslow.local/]
[MSG:INFO: SSDP Started]
[MSG:INFO: HTTP started on port 80]
[MSG:INFO: Telnet started on port 23]
[MSG:INFO: Caution: Unlocked]
[MSG:INFO: Retracting all belts]
[MSG:INFO: Top Right pulled tight with offset -1208.808]
[MSG:INFO: Bottom Right pulled tight with offset -1289.264]
[MSG:INFO: Bottom Left pulled tight with offset -2584.154]
[MSG:INFO: Top Left pulled tight with offset -2656.923]
Jog: Z2
Jog: Z2
Jog: Z1
Jog: Z0.5
Home pos set for: Z
[G54:250.000,-300.000,72.850]
Jog: Z3
[MSG:INFO: Retracting all belts]
[MSG:INFO: Top Right pulled tight with offset 0.097]
[MSG:INFO: Bottom Left pulled tight with offset 0.011]
[MSG:INFO: Bottom Right pulled tight with offset -0.107]
[MSG:INFO: Top Left pulled tight with offset -0.021]
[MSG:INFO: Extending all belts]
[MSG:INFO: All belts extended to center position]
[MSG:INFO: Measured waypoint 0]
[MSG:INFO: Center point deviation: TL: 0.262 TR: 0.241 BL: 0.020 BR: -1.718]
[MSG:INFO: Center point deviation: TL: 0.262 TR: 0.241 BL: 0.020 BR: -1.718]
[MSG:INFO: Center point deviation within 15.000mm, your coordinate system is accurate]
[TLO:0.000]
[MSG:WARN: Position error on Bottom Left axis exceeded 15mm while running. Error is 15.011mm Counter: 1]
[MSG:WARN: Previous error was 15.011mm]
[MSG:WARN: Position error on Bottom Left axis exceeded 15mm while running. Error is 15.054mm Counter: 2]
[MSG:WARN: Previous error was 15.054mm]
[MSG:WARN: Position error on Bottom Left axis exceeded 15mm while running. Error is 15.097mm Counter: 3]
[MSG:WARN: Previous error was 15.097mm]
[MSG:WARN: Position error on Bottom Left axis exceeded 15mm while running. Error is 15.129mm Counter: 4]
[MSG:WARN: Previous error was 15.129mm]
[MSG:WARN: Position error on Bottom Left axis exceeded 15mm while running. Error is 15.179mm Counter: 5]
[MSG:WARN: Previous error was 15.179mm]
[MSG:WARN: Position error on Bottom Left axis exceeded 15mm while running. Error is 15.214mm Counter: 6]
[MSG:WARN: Previous error was 15.214mm]
[MSG:ERR: Emergency stop! Stopping all motors]
[MSG:WARN: The machine will not respond until turned off and back on again]
[MSG:INFO: Reset during file job at line: 68]
[MSG:ERR: Position error > 15mm while running. E-Stop triggered.]

My plan is to update the software first. But any other pointers?

2

Is this after switching to the JST-XH encoders?

1 Like
3

no. Still on the originals

1 Like
4

This is the classic issue that the JST-XH connectors are trying to address. Basically what is happening is that the Ethernet connectors have a single point of contact between the connector and wire so if they get dusty, the vibrations can make the connections intermittent.

The quick fix is to blow them out with computer duster and use a bit of hot glue to seal them up.