Posts made by downshift64

i cant figure out how this happened to fix it
G29
Warning: the height map has a substantial Z offset. Suggest use Z-probe to establish Z=0 datum, then re-probe the mesh.
25 points probed, min error 0.115, max error 0.342, mean 0.224, deviation 0.056
Height map saved to file 0:/sys/heightmap.csv

i dont know what i did i have been using the IR probe for maybe 6 or more months and the mesh has always been good green light blue area, and the first point has always been close to zero , now its this

@downshift64 === Move ===
DMs created 83, segments created 3, maxWait 315314ms, bed compensation in use: mesh, comp offset 0.000

does this need to have a offset instead of zero

@downshift64 === Move ===
DMs created 83, segments created 6, maxWait 232449ms, bed compensation in use: mesh, comp offset -0.180

@dc42 i will look and see if i do but i havent changed anything, i finished a print then started a new print and and that warning popped up and my height map went from around .05 .095 to .350 above the plate

been using the probe for awhile been working great, now i cant figure out how to fix this

in console it reads 1.65 the status window reads 1.62. Iam getting G29
Warning: the height map has a substantial Z offset. Suggest use Z-probe to establish Z=0 datum, then re-probe the mesh.
25 points probed, min error 0.085, max error 0.322, mean 0.196, deviation 0.055
Height map saved to file 0:/sys/heightmap.csv
i have ran the nozzle to the bed used G92 Z0 to set the offset over and over,
the i move the head up 5mm and G30 -S1 that's where the 2 different offsets come in i have tried using both and come out with the same result, its been working great i don't know what happened.

@tratoon first thing i always do when prints dont want to stick is wash the bed with hot water and dawn dish soap

@downshift64 damn it just clicked lol i was moving the nozzle out away from where it can print because i had entered that command to move outside bounds and was getting all my probe locations from that, sorry this took so long to get in this old head thank you for being very helpful and patient

@phaedrux what i am not understanding is why do you have to measure the probes offset to the nozzle when it doesnt use that or i am not understanding something here

@phaedrux should the printer home at 0:0 with a probe first before it moves to the center of the bed right now i have it moving to center
; Axis Limits
M208 X-24 Y-29 Z-3.0 S1 ; set axis minima
M208 X305 Y295 Z295 S0 ; set axis maxima
G31 P500 X37 Y-30 Z2.67 ; set Z probe trigger value, offset and trigger height
M557 X-23:277 Y30:294 S20 ; define mesh grid
this is with M557 X40:277 Y40:290

M557 X-23:277 Y30:290 S20 this is what i get with this M557 the x location is where it should be but Y isnt it should be closer to the front or me by about 30+ mm

M98 P"0:/macros/PROBE BED GRID"
Warning: Skipping grid point X=-23.0, Y=30.0 because Z probe cannot reach it
Warning: Skipping grid point X=-3.0, Y=30.0 because Z probe cannot reach it

@phaedrux i taped a piece of paper down to the bed touched it with the nozzle then marked that spot it took 30mm of y and 37mm of x to line the probe up with the mark my probe is to the right of the nozzle and in front of it so that would be y is -30 and X is +37

G31 P500 X37 Y-30 Z2.67 ; set Z probe trigger value, offset and trigger height
M557 X-23:277 Y30:294 S20 ; define mesh grid
what am i doing wrong now it wont probe in the spots i tell it

@downshift64 i done some of the changes and just wanted to try it since my bed has been heating for about 1 hour but working on all of them now
got my redone my Z0
i haven't been doing the probe offset right i just jogged the nozzle or X around and whatever the location was on the web status was i put that as the offset i didn't realize that one side u had to put positive or neg that's helped a lot

@downshift64 === Move ===
DMs created 83, segments created 11, maxWait 135054ms, bed compensation in use: mesh, comp offset 0.000

got some real high spots and some to low and it says i am using the mesh is that how a probed bed is supposed to be like this,, i think i can do this without a bltouch

@phaedrux thank you i feel like i need to pay you i have learned a lot upgrading this printer

@downshift64 how can u make sure your using the heightmap mine doesnt look like it is being compensated

@phaedrux maybe this can explain better than i can i hope
https://www.youtube.com/watch?v=a4e_qhzWl1E

@phaedrux that is the spot i told it to probe for the mesh yesterday but today it wont i dont understand does it save anything in memory maybe that might need to be cleared

@phaedrux that is within bonds that is where it was before i think but if it isnt its still on the bed close to where it was
do i need to change the Y25 because it goes to X-20 it just goes past the Y off the bed into the neg towards me
what i dont understand is if i just home it probes the bed at x15 Y25

just looked at my heightmap from yesterday and its X-20 Y25
should it have S20:20 or is S20 ok

; homez.g
; called to home the Z axis
;
; generated by RepRapFirmware Configuration Tool v3.3.10 on Wed Jul 06 2022 10:08:28 GMT-0500 (Central Daylight Time)
G91 ; relative positioning
G1 H2 Z5 F6000 ; lift Z relative to current position
G90 ; absolute positioning
G1 X15 Y28 F6000 ; go to first probe point
G30 ; home Z by probing the bed

; Uncomment the following lines to lift Z after probing
;G91 ; relative positioning
;G1 Z5 F100 ; lift Z relative to current position
;G90 ; absolute positioning