@jay_s_uk said in G30 Question / Feature Request:
because
- its cleaner code than using - -
You don't use - -
I was showing the subtraction of a negative offset - which results in the correct value.
Without abs is "cleaner" because, as I said, the same formula works for all printers.
Frederick
You are seeing the destination of the current move.
Starting at X=0 if you execute G90 G1 X100 F100 the DWC reports X=100 at the start of the move even though it takes a good while for the move to complete.
I don't believe the firmware issues a stream of data reporting the current position of the tool.
Frederick
@luckyflyer said in Dockable probe .g files:
I'm looking for examples of bed.g and especially mesh.g files used by those who use dockable z probes. Maybe @Arnold_R_Clark has somthing, thanks.
I keep my Z probe mounted except when printing.
This means there is no mount/dismount during things like homing, bed leveling, height map creation, etc.
In the file I execute at the start of a print I dismount the probe.
In the file I execute at the end of a print I re-mount the probe.
There is no special probe handling in bed.g or mesh.g.
In the homeZ.g file I check if the probe needs to be mounted if for some reason it is not, and mount it as needed.
Frederick
@nurgelrot said in Why are my Heightmaps always too high?:
@nurgelrot So if I home all. Then do a G28 Z it probes the center of the bed and I watch it trigger at the correct z height. 2.69 run a G30 by hand it triggers at 2.69. I run a G30 P0 X180 Y180 Z-9999 it triggers at 2.69. I run a G29 and the point at X180 Y180 triggers at 2.76.... with all the other point high as well. I just don't get it.
Firmware 3.3 earlier
and now Firmware: RepRapFirmware for Duet 3 Mini 5+ 3.4.0beta3 (2021-08-24)
One difference I see between you probe setup and mine is the P parameter for G31.
Yours is 500, mine is 25.
Create a macro with this code. When executed it will generate a result showing each probe trigger height.
One run on a printer of mine produced a mean reading of 0.006 and a deviation of 0.003.
Be sure and edit the second M558 to restore your normal probe settings.
M558 A1 S0.01 ; set probe to take a single reading
; take 10 readings and report results
G30 P0 X0 Y0 Z-99999
G30 P1 X0 Y0 Z-99999
G30 P2 X0 Y0 Z-99999
G30 P3 X0 Y0 Z-99999
G30 P4 X0 Y0 Z-99999
G30 P5 X0 Y0 Z-99999
G30 P6 X0 Y0 Z-99999
G30 P6 X0 Y0 Z-99999
G30 P8 X0 Y0 Z-99999
G30 P9 X0 Y0 Z-99999 S-1
M558 A? S? ; restore probe settings for A and S
G90 ; absolute moves
G1 Z5 F600 ; move Z to known height
@jay_s_uk said in G30 Question / Feature Request:
@fcwilt or use abs....
But why? The offsets are correct as they are if you just subtract them for both X and Y.
You have +abs for X and -abs for Y which means you are adjusting the formula based on the sign of the offset.
You are making an adjustment that you don't need to make.
By simply using subtraction the same formula works for everyone.
Frederick
Hi,
Many folks will suggest you have to use VPN which is not true.
Nothing wrong with adding that extra layer of security but it can be difficult to setup. There are companies that will provide a VPN connection for a monthly/yearly fee.
Does your router support remote access with secure authentication, meaning the remote user has to provide a user name and password via a HTTPS connection?
Frederick
You've got a house wiring problem.
I see two solutions short of trying to get by with a DC powered bed heater.
Frederick
@jay_s_uk said in G30 Question / Feature Request:
@fcwilt I do have to use abs if I want to add a negative value...
As I said the probe offsets are signed - just subtract them.
Using your example 130 - -10 = 140.
Frederick