0x42 Posts - Answer Overflow

0x42

•Created by 0x42 on 1/29/2025 in #fix-my-printer

Gantry stopped moving smoothly after changing extruder!?

Hi all! I’m starting to lose my mind. After changing the broken hotend and doing a pid tuning now the gantry does not move as smooth as before…. the only thing I did was changing the hotend and the pid tuning. Before then I worked to fix my mesh following the docs but I could always create a new one after every frame adjustment as the gantry was moving perfectly. So i don’t think it’s a sudden mechanical issue? Could be related to the change of temperature after the extruded and bed pid tuning? What can I check?

15 replies

RRCRat Rig Community [Unofficial]

•Created by 0x42 on 1/25/2025 in #fix-my-printer

Heater extruder not heating

Hi all again, I can't seem to heat up the hotend on the vcore 3.1 I am trying to finish commissioning. When I do the PID tuning for the extruder (the stock Phaetus Rapido), or when I just try to raise the temperature from the console, I always get this klipper error:

Heater extruder not heating at expected rate
See the 'verify_heater' section in docs/Config_Reference.md
for the parameters that control this check.

Heater extruder not heating at expected rate
See the 'verify_heater' section in docs/Config_Reference.md
for the parameters that control this check.

I am using the default conf for the hotend:

[extruder]
dir_pin: !e_dir_pin       # Remove ! in front of pin name to reverse the direction of extruder
rotation_distance: 5.57   # Bondtech LGX Lite default
#pressure_advance: 0.05   # Check https://www.klipper3d.org/Pressure_Advance.html for pressure advance tuning.
control: pid
pid_kp: 28.413
pid_ki: 1.334
pid_kd: 151.300

[extruder]
dir_pin: !e_dir_pin       # Remove ! in front of pin name to reverse the direction of extruder
rotation_distance: 5.57   # Bondtech LGX Lite default
#pressure_advance: 0.05   # Check https://www.klipper3d.org/Pressure_Advance.html for pressure advance tuning.
control: pid
pid_kp: 28.413
pid_ki: 1.334
pid_kd: 151.300

I checked all the cables and they are not broken, plus if I hold a lighter under the extruder I can see the thermistor is registering an increase in temperature. What can be wrong? 🙏

17 replies

RRCRat Rig Community [Unofficial]

•Created by 0x42 on 1/23/2025 in #fix-my-printer

Stepper missing steps?

Hey! Please help a noob! I am configuring a vcore 3.1 300x300, it’s a 2 years old kit that got shelved half assembled between house moves. Im doing the klipper configuration and I got stuck trying to do the z-tilt because randomly at every round it would position the probe in different points while registering the same coordinates. It seems the steppers are losing steps, specifically when moving diagonally How do I go to debug and fix this? I can reproduce with a macro looping around the three z tilt points, see attachment. Any help would be much appreciated! 🙏🏼

6 replies

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