Rat Rig Community [Unofficial]•17mo ago

Z-offset inconsistency

Hi! I have a problem with the calibration of my buildplate. I have several 3 Ratrig 500 on which I always produce the same part. There are 5 of them on the plate, the first part on the door side is always too far off the plate and the others are ok. If I play on the Z-offset while printing the first part, the others are then too stuck. I print in ABS at 110°C (I leave the plate to heat up for about 30 minutes before printing). I use a ratrig super pinda for mesh calibration. Have you ever encountered this problem? Do you have any ideas on how to solve it? Thanks in advance for your help !

6 Replies

ptegler•17mo ago

do you rely on a previous bed mesh grid for each consecutive print? ...or do adaptive meshing? ...fresh mesh each print? or...?

extended-salmonOP•17mo ago

fresh mesh each print . I use the start macro

ptegler•17mo ago

How cloes to the corners of your bed are you meshing near xy min position?

extended-salmonOP•17mo ago

I don't know exactly it's the BED_MESH_PROFILE ratos. I don't change anything in this section. So I would say yes it's quite close to xy min pos bed_mesh] horizontal_move_z: 5 mesh_min: 20,20 mesh_max:465,460 here is the full config :[bed_mesh] horizontal_move_z: 5 mesh_min: 20,20 mesh_max:465,460 probe_count: 7,7 fade_start: 1.0 fade_end: 10.0 mesh_pps: 2,2 algorithm: bicubic bicubic_tension: .2

ptegler•17mo ago

bump up both mins to 100 and test my own VC500.... (then adjust) my own :

speed: 800                ; #*#*#*   up from 800 with new 5160s - pat 20230221
horizontal_move_z: 6
mesh_min: 50,50
mesh_max: 450,450
probe_count: 9,9

speed: 800                ; #*#*#*   up from 800 with new 5160s - pat 20230221
horizontal_move_z: 6
mesh_min: 50,50
mesh_max: 450,450
probe_count: 9,9

careful... hort move Z is Z probe dependent (use mine at your own peril!)

extended-salmonOP•17mo ago

Thanks I will try this tomorrow after updating also my ratos version. I keep you inform. It Look better. Thanks!!

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Z-offset inconsistency