Ender 3 - Nozzle ramming into bed with CRtouch Hi, I'll try keep this as short as possible, but I recently got into printing and picked up the Ender 3 with a CRtouch as people recommended it. The Creality firmware I installed was not compatible with my chip, which apparently is a relatively new addition to the Enders due to the silicon shortage (GD32F303 RET6, 4.2.2 board). 2 weeks later and I finally went and compiled the Unified 2 firmware. I uncommented the right options and flashed it onto the printer with no issue. All the previous issues with the bad Creality firmware was gone. I measured my X/Y offsets (X -45, Y-5) and sent them through Pronterface (and saved with M500). I measured my Z offset exactly as almost every guide says. I auto home and the Crtouch deploys and retracts as it should. It raises Z axis to 5. I heat up both bed and nozzle to PLA temps (50 and 200 respectively) and let it sit for a few mins. I babystep the Z axis down until it grips a piece of paper (but I can still move it). I then raise the Z axis to 0. I go to Z offset setting and baby step it down to the same and test again to make sure it's correct. For me, I get -3.9, so I set it as that and store settings. I turn off printer and back on and send M503 to check settings are stored (I get X-45, Y-5, Z -3.9). I add a G29 after G28 in Cura to make sure it probes bed before each print. I did also do a rough manual level before all of this as well! So when I go to print, it auto homes, Cr touch deploys and retracts and then it does a 9 point probe around the bed. As soon as it starts to print though, it immediately drives the nozzle into the bed, cutting deep grooves into the bed and makes really loud sounds. The extruder is knocking like crazy because no filament can get deposited and I have to immediately abort the print. It does this on every print. So far, and I don't understand why, but the only way I've actually managed to get a print is by increasing the Z offset to 0 and then decrease by 0.025 and then run benchy test (just the bottom). I did this from 0 to -0.975. I skipped ahead if the print was noticeably horrible but it took about 8 prints to get it to a spot where it prints decently. It works fine on prints with a small surface area, but as soon as the print reaches out towards the corners, the nozzle is too far away and just extrudes filament all over the place. I have no idea if the Crtouch is even working. It's doing it's probes, but seems to be ignoring them. Really sorry about the length of this but hopefully the information I've provided will be enough. I'll post M503 below and Cura settings in comments if I can. Thanks heaps in advance! :) M503 SENDING:M503 echo:; Linear Units: echo: G21 ; (mm) echo:; Temperature Units: echo: M149 C ; Units in Celsius echo:; Steps per unit: echo: M92 X80.00 Y80.00 Z400.00 E98.81 echo:; Max feedrates (units/s): echo: M203 X400.00 Y400.00 Z15.00 E200.00 echo:; Max Acceleration (units/s2): echo: M201 X2500.00 Y2500.00 Z500.00 E5000.00 echo:; Acceleration (units/s2) (P<print-accel> R<retract-accel> T<travel-accel>): echo: M204 P1500.00 R500.00 T1500.00 echo:; Advanced (B<min_segment_time_us> S<min_feedrate> T<min_travel_feedrate> X<max_x_jerk> Y<max_y_jerk> Z<max_z_jerk> E<max_e_jerk>): echo: M205 B20000.00 S0.00 T0.00 X8.00 Y8.00 Z0.30 E5.00 echo:; Auto Bed Leveling: echo: M420 S0 Z0.00 ; Leveling OFF echo: G29 W I0 J0 Z-7.14200 echo: G29 W I1 J0 Z-7.01450 echo: G29 W I2 J0 Z-6.87800 echo: G29 W I0 J1 Z-6.91750 echo: G29 W I1 J1 Z-6.90150 echo: G29 W I2 J1 Z-6.82300 echo: G29 W I0 J2 Z-6.79000 echo: G29 W I1 J2 Z-6.86700 echo: G29 W I2 J2 Z-6.95050 echo:; Material heatup parameters: echo: M145 S0 H210.00 B60.00 F0 echo: M145 S1 H240.00 B100.00 F0 echo:; Hotend PID: echo: M301 P28.72 I2.62 D78.81 echo:; Z-Probe Offset: echo: M851 X-45.00 Y-5.00 Z-0.98 ; (mm) echo:; Filament load/unload: echo: M603 L100.00 U100.00 ; (mm)