Error during setup: probe_eddy_current sensor not in valid range

[JostBrand]

I have installed the Eddy USB on my Sovol SV06, positioning it exactly where the inductive probe was previously located. Consequently, I copied over the X and Y offsets, Mesh_min and Mesh_max, and Home_xy_position settings.

However, during the setup process, I encountered an issue at step 28. When running the command BED_MESH_CALIBRATE METHOD=rapid_scan, I received the error message: probe_eddy_current sensor not in valid range.

 00:39:53  $ G90
        G1 Z20.00 F600
00:39:58  $ **LDC_CALIBRATE_DRIVE_CURRENT CHIP=btt_eddy**
00:39:58  // probe_eddy_current btt_eddy: reg_drive_current: 15
// The SAVE_CONFIG command will update the printer config file
// with the above and restart the printer.
00:40:03  $ SAVE_CONFIG
00:40:04  // Klipper state: Disconnect
00:40:26  $ PROBE_EDDY_CURRENT_CALIBRATE_AUTO CHIP=btt_eddy
00:40:33  // Starting manual Z probe. Use TESTZ to adjust position.
// Finish with ACCEPT or ABORT command.
00:40:33  // Z position: ?????? --> 257.000 <-- ??????
00:40:37  $ TESTZ Z=-1
00:40:37  // Z position: ?????? --> 256.000 <-- 257.000
-- remove the steps to not pollute the ticket. 
00:41:25  $ ACCEPT
00:42:40  // temperature_probe btt_eddy: Z Calibration Temperature set to 31.97. The SAVE_CONFIG command will update the printer config file and restart the printer.
00:42:40  // probe_eddy_current: stddev=51.285 in 2486 queries
// The SAVE_CONFIG command will update the printer config file
// and restart the printer.
00:43:26  $ SAVE_CONFIG
00:43:27  // Klipper state: Disconnect
00:43:44  $ G28
00:44:02  // probe at 84.500,135.000 is z=2.478062
00:44:02  // Result is z=2.478062
00:44:16  $ BED_MESH_CALIBRATE METHOD=rapid_scan
00:44:16  // Beginning rapid surface scan at height 2.00...
00:44:16  // Sample hit distance +/- 1.6000mm, time window +/- ms 8.0000
00:44:30  !! probe_eddy_current sensor not in valid range

My klipper.log

Can someone please point me in the right direction to solve this?

[rafik24]

I have the same issue, I tried fiddling with min/max x/y in vain.

Went over the calibration process again but still the same error message.

Some help would be appreciated.

[SinglerGold2]

I had the same issue but I think I have been able to solve the problem for myself:

The X-gantry was out of alignment, which meant that one side was much higher than the otherwith almost 2mm higher on the right than on the left. (Dual-Z)

I then recalibrated the two Z-screws and the two rails on which X rests and realigned X , leveled the bed and now it works

[cicada7772]

[Solved] I have the same issue, I am able to make a mesh without the rapid scan and see that my bed has 0.55mm variance, which should be good enough for the probe to work.

Edit 1: For some reason it is scanning at a Z height of 5mm, even though the Horizontal_move_Z is set to 2 under the [bed_mesh] section

Edit 2: I had a duplicate [bed_mesh] section in a separate file, after deleting that it works just fine. Although I am suprised klipper did not throw an error...

[JostBrand]

Solved - as it is often the case: Read the friendly manual was the solution. The mesh_min and mesh_max are calculated differently.

Could be a bit more stressed in the documentation.

[goshi0]

sorry @JostBrand can you elaborate?, I cant get rid of the problem ... Thanks

[JostBrand]

Sure, just read these instructions really carefully:

# For the mesh dimensions below, the coordinates need to be reachable by the center of the probe. To calculate coordinates that will work, use the formula below:
# mesh x min = position_min_x + greater_of (15mm or x_offset) <--- in this term, only consider the x offset if it is positive, ignore if negative.
# mesh y min = position_min_y + greater_of (15mm or y_offset) <--- in this term, only consider the y offset if it is positive, ignore if negative.
# mesh x max = position_max_x - greater_of (15mm or |x_offset|) <--- in this term, only consider the x offset if it is negative, ignore if positive.
# mesh y max = position_max_y - greater_of (15mm or |y_offset|) <--- in this term, only consider the y offset if it is negative, ignore if positive.
# Example: Consider that you have a 300 x 300 bed with the max x and y positions being 300 and the min being 0. Your probe offsets are -20 for X and 10 for Y
# For mesh x min we ignore the x offset term because it is negative. Therefore mesh x min = 15
# For mesh y min we do not ignore the y offset term because it is positive but it is less than 15 so we use 15. Therefore mesh y min = 15
# For mesh x max we do not ignore the x offset term because it is negative. It is also greater than 15. Therefore mesh x max = 280
# For mesh y max we ignore the y offset term because it is positive but it is less than 15 so we use 15. Therefore mesh y max = 285
# The final result would be mesh_min: 15, 15 mesh_max: 280, 285
mesh_min: 10, 10  # modify these according to the above guide. If the probe cannot reach then you will get a klipper error when trying to scan a bed mesh.
mesh_max: 220, 220 # modify these according to the above guide. If the probe cannot reach then you will get a klipper error when trying to scan a bed mesh.