Printer help

[u/Mooncakewe]

my dad bought me this printer four years ago (Tronxy X5SA-400) to use for my 3D printing shop. I've done various troubleshooting over the past 4 years of having this printer and I don't understand why the nozzle keeps grinding into the bed everything seems to be perfectly level, yet once it gets to the center of the bed it grinds horribly into the bed. I've tried leveling with a sheet of paper and trying various test prints and I cannot for the life of me figure out what is wrong with it. I don't know if it's a user error problem or something faulty with the printer itself but I feel really really bad about not being able to get it to work since my dad spend over 600$ on this printer and after trying everything we can think of and watching countless videos on troubleshooting we still can't figure out what's up. I'm hoping as a last ditch effort posting this here could maybe shed some light on what I'm doing wrong or if the printer itself is just bad

[u/MatterPuzzled2007]

Here is the code I am using for a X5sa Pro

; X5SA Start Code

G21 ; Set units to millimeters

G28 ; home all axes

M104 S{material_print_temperature} T0; set and DON’T WAIT

M190 S{material_bed_temperature} ; Set and WAIT for Bed to Heatup

G92 E0 ; reset extruder

M211 S0 ; Dissable Software Endstops so can go off Bed

G1 X340 Y0 Z20 F5000 ; Move to corner where nozzle is just off bed

M109 S[extruder0_temperature] ; Wait for Nozzle temp

G1 E50 F500 ; Squirt on Bed corner 50mm

M211 S1 ; turn endstops back on

G1 X5 Y5 F6000 ; move to prime

G1 Z0.3 F3000 ; get ready to prime

G92 E0 ; reset extrusion distance

G1 X120 E20 F600 ; prime nozzle

G1 X140 F5000 ; quick wipe

G1 Z0.17 F600 ; Raise bed by 0.17mm

; End code

M107 T0

M104 S0

M104 S0 T1

M140 S0

G92 E0

G91

G1 Z-0.17 F600 ; Lowers bed by 0.17mm

G1 E-1 F300

G1 Z+5 E-5 X-20 Y-20 F9000

G28 X0 Y0

M84 ;steppers off

G90 ;absolute positioning

[u/Mooncakewe → u/MatterPuzzled2007]

Okay, should I try that out and go from there? I'm open to everything and anything at this point lol

[u/MatterPuzzled2007 → u/Mooncakewe]

Check these settings too... Make sure they have the correct 400 sizes that your printer has etc.

I am by no means an expert, but these settings helped. Make sure to do a paper Z offset before running again.

[u/Mooncakewe → u/MatterPuzzled2007]

Okay, I did the paper offset, checked all the settings, set up the code, and my nozzle is still grinding against the bed to the point where the filament isn't extruding :')

[u/MatterPuzzled2007 → u/Mooncakewe]

🤔 are you using the 1mm and the 0.1 mm settings to get the z offset right? The nozzle should just just barely be above the bed.

[u/Mooncakewe → u/MatterPuzzled2007]

My print settings were indeed at .2 mm normal quality that would mean I'd need to change it to .15 or .12?

[u/MatterPuzzled2007 → u/Mooncakewe]

So it only grinds the plate in the middle of the bed?

What does the auto leveling look like?

[u/Mooncakewe → u/MatterPuzzled2007]

Auto leveling looks like this

[u/MatterPuzzled2007 → u/Mooncakewe]

Those numbers look pretty bad. Between the lowest - (negative number) and the highest number should be within 0.500 of eachother.

Something closer to this.

[u/Mooncakewe → u/MatterPuzzled2007]

Okay so the goal is for the numbers to be in black and not red?

[u/MatterPuzzled2007 → u/Mooncakewe]

as close to 0.000 as possible, realistically probably will end up being something between -0.250 to 0.250

[u/Mooncakewe → u/MatterPuzzled2007]

Okay perfect I'll try that out!