TheTechRunner
Member
Is there anyone that can help me interpret these charts? Maybe this could be a good start of a thread on how to interpret them? I think I'm failing to understand them, or failing to perform them correctly, or both. These were taken today with a cool bed/chamber. It seems like the first couple probes are really inaccurate and then it settles in and becomes very accurate. I've checked all my grub screws on Z motors. Checked tightness of Z belts (just pushing with finger and making sure all were similar). I have a classic bed mount, not kinematic. I have the z0 (front left) screw *tight* and the other three are barely tightened (but not loose).
Do these tests need to be performed after a heat soak? Going to try this and post results.
Physical Build
Cold Chamber, Cold Bed, Cold Nozzle
![20221223_1212_corner_test(box).png 20221223_1212_corner_test(box).png](https://forum.vorondesign.com/data/attachments/1/1181-b72299aae0d7a7a09d900a568053041e.jpg)
![20221223_1212_corner_test.png 20221223_1212_corner_test.png](https://forum.vorondesign.com/data/attachments/1/1180-6c232f8ea41fe73511bb6ecae56f4f2e.jpg)
![20221223_1212_drift_test.png 20221223_1212_drift_test.png](https://forum.vorondesign.com/data/attachments/1/1179-c94c15e26d3c609dd8cd7b2d76a07e6f.jpg)
![20221223_1212_repeatability_test(box).png 20221223_1212_repeatability_test(box).png](https://forum.vorondesign.com/data/attachments/1/1178-ff31ffe90d0384f5e4b1adb970ee5b6d.jpg)
![20221223_1212_repeatability_test.png 20221223_1212_repeatability_test.png](https://forum.vorondesign.com/data/attachments/1/1177-5b77e7a1fc09379a8abf071ad5aecb93.jpg)
120 Bed, 50+ Chamber, 150 Nozzle
Here are the results after a good heat soak. I stopped heatsoaking when the chamber temperature stabilized at 54.6°C without fluctuation for 20 minutes. That was roughly two hours.
![20221223_1521_corner_test(box).png 20221223_1521_corner_test(box).png](https://forum.vorondesign.com/data/attachments/1/1183-5ab1ed2df95dd873ba2609256abcf124.jpg)
![20221223_1521_corner_test.png 20221223_1521_corner_test.png](https://forum.vorondesign.com/data/attachments/1/1184-dfa0c55c023837b7a8f3c12ec0cbee16.jpg)
![20221223_1521_drift_test.png 20221223_1521_drift_test.png](https://forum.vorondesign.com/data/attachments/1/1185-9efef1917eac074c52771f557d68cedd.jpg)
![20221223_1521_repeatability_test(box).png 20221223_1521_repeatability_test(box).png](https://forum.vorondesign.com/data/attachments/1/1186-3635b7b2c3532321d85c14e08e684d6f.jpg)
![20221223_1521_repeatability_test.png 20221223_1521_repeatability_test.png](https://forum.vorondesign.com/data/attachments/1/1187-3fa6413d7adc153b34192816543b96ed.jpg)
Do these tests need to be performed after a heat soak? Going to try this and post results.
Physical Build
- 250mm v2.4r2 (upgraded from r1)
- Stealthburner with Voron Revo
- Bed: Cast Aluminum Tool & Jig Plate (ALI516/MIC6/ATP5) 5/16" thick
- X rail: Hiwin MGN12H
- A/B motors: LDO-42STH48-2504AC
- Z motors: OMC 17HS19-2004S1
- Mods:
- TI backers
- Rama idlers
- Pins mod (only X/Y, not Z)
[stepper_z]
rotation_distance: 40
gear_ratio: 80:16
microsteps: 32
endstop_pin: probe:z_virtual_endstop
homing_speed: 15
second_homing_speed: 2
homing_retract_dist: 2
[tmc2209 stepper_z]
uart_pin: PC4
interpolate: true
run_current: 0.8
sense_resistor: 0.110
stealthchop_threshold: 0
[heater_bed]
sensor_type: NTC 100K MGB18-104F39050L32
max_power: 0.6
min_temp: 0
max_temp: 123
pwm_cycle_time: 0.0166
Cold Chamber, Cold Bed, Cold Nozzle
![20221223_1212_corner_test(box).png 20221223_1212_corner_test(box).png](https://forum.vorondesign.com/data/attachments/1/1181-b72299aae0d7a7a09d900a568053041e.jpg)
![20221223_1212_corner_test.png 20221223_1212_corner_test.png](https://forum.vorondesign.com/data/attachments/1/1180-6c232f8ea41fe73511bb6ecae56f4f2e.jpg)
![20221223_1212_drift_test.png 20221223_1212_drift_test.png](https://forum.vorondesign.com/data/attachments/1/1179-c94c15e26d3c609dd8cd7b2d76a07e6f.jpg)
![20221223_1212_repeatability_test(box).png 20221223_1212_repeatability_test(box).png](https://forum.vorondesign.com/data/attachments/1/1178-ff31ffe90d0384f5e4b1adb970ee5b6d.jpg)
![20221223_1212_repeatability_test.png 20221223_1212_repeatability_test.png](https://forum.vorondesign.com/data/attachments/1/1177-5b77e7a1fc09379a8abf071ad5aecb93.jpg)
120 Bed, 50+ Chamber, 150 Nozzle
Here are the results after a good heat soak. I stopped heatsoaking when the chamber temperature stabilized at 54.6°C without fluctuation for 20 minutes. That was roughly two hours.
![20221223_1521_corner_test(box).png 20221223_1521_corner_test(box).png](https://forum.vorondesign.com/data/attachments/1/1183-5ab1ed2df95dd873ba2609256abcf124.jpg)
![20221223_1521_corner_test.png 20221223_1521_corner_test.png](https://forum.vorondesign.com/data/attachments/1/1184-dfa0c55c023837b7a8f3c12ec0cbee16.jpg)
![20221223_1521_drift_test.png 20221223_1521_drift_test.png](https://forum.vorondesign.com/data/attachments/1/1185-9efef1917eac074c52771f557d68cedd.jpg)
![20221223_1521_repeatability_test(box).png 20221223_1521_repeatability_test(box).png](https://forum.vorondesign.com/data/attachments/1/1186-3635b7b2c3532321d85c14e08e684d6f.jpg)
![20221223_1521_repeatability_test.png 20221223_1521_repeatability_test.png](https://forum.vorondesign.com/data/attachments/1/1187-3fa6413d7adc153b34192816543b96ed.jpg)
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