Temp shutting off while Z-probing
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Is there a way to have the printer pause after Z-probing to let the bed temp and the hotend temp raise back up before printing? My hotend looses about 20c while the bed is being probed.
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@silver1882 said in Temp shutting off while Z-probing:
Is there a way to have the printer pause after Z-probing to let the bed temp and the hotend temp raise back up before printing? My hotend looses about 20c while the bed is being probed.
So you are turning off the heaters during probing?
Frederick
Printers: a E3D MS/TC setup and a RatRig Hybrid. Using Duet 3 hardware running 3.4.6
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@silver1882 Use M116 to wait for temp after the probing. https://docs.duet3d.com/en/User_manual/Reference/Gcodes#m116-wait
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No I am not shutting it off, it shuts off when the Bltouch prob's then it turns back on.
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Thank you that did the trick!
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@silver1882 said in Temp shutting off while Z-probing:
No I am not shutting it off, it shuts off when the Bltouch prob's then it turns back on.
There are the docs on M558 which configures the probe:
Parameters
Pnnn Z probe type
C"name" Specifies the input pin and the optional modulation pin. This parameter is mandatory, except for probe type 0 (manual probing) and 10 (Z motor stall detection).
Hnnn Dive height (mm). The height above the trigger height from which probing starts.
Fnnn or Fnnn:nnn Feed rate (i.e. probing speed, mm/min). Initial fast probe followed by probing at second speed supported in RRF 3.3 and later.
Tnnn Travel speed to and between probe points (mm/min). This is also the Z lift speed after probing. The corresponding axis speed limits set by M203 will be used instead if they are lower.
Knnn Sets/selects Z probe number. If there is no K parameter then 0 is used. You can ignore this parameter if you have only one Z probe.
Rnnn Z probe recovery time before the probing move is started, default zero (seconds). This is to allow the probe to settle after executing a travel move to the coordinates to probe.
Annn Maximum number of times to probe each point, default 1. Maximum, as of 2.03, is 31. Setting M558 A parameter to anything >31 set it to 0 instead of to 31
Snnn Tolerance when probing multiple times, default 0.03mm
Bn If 1, turn off all heaters while probing, default (B0) leaves heaters on.Notice the B parameter. Do you perhaps have it set to B1? I use BLTouch devices and I don't experience the heater issue you posted about.
Frederick
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I read if you do not turn the heaters off they can mess with the Bltouch's reading.
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@silver1882 said in Temp shutting off while Z-probing:
I read if you do not turn the heaters off they can mess with the Bltouch's reading.
In some cases it can. You'd have to test both ways to find out if your setup is effected.
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I just tested it with out shutting the heat off and it works just fine, thank all for the help.
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@silver1882 said in Temp shutting off while Z-probing:
I read if you do not turn the heaters off they can mess with the Bltouch's reading.
We've previously determined that's the case when using some types of bed heater. It depends on whether the bed heater traces or wires are basically a single large spiral (which generates a large magnetic field) or a better design that generates a smaller magnetic field.
