Setting up Z probe
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The recommended procedure is here:
https://duet3d.com/wiki/Configuring_RepRapFirmware_for_a_Delta_printer#Updating_config.g
Although as you have a manually fitted probe I would not run auto calibration before each print -
I don't seem to have a config-override.g and M500 and M501 do nothing. Do I have to create config-override.g somehow?
Which firmware version are you running?
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I am running 1.17e. I found I had to power cycle the board before config-override would show up. All done now and the printer is running fine. However, I just tried to save the heightmap, out of interest, and it saved okay but using M375 to view the file I got the message: M375
Error: Failed to load height map from file heightmap.csv: invalid gridNot hugely important but I would like to have seen the grid.
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There was a bug in 1.17 that prevented the height map being loaded if lines in it exceeded a certain length. It was to fixed in 1.18.
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I eventually managed to load version 1.18 but I am still getting the; Error: Failed to load height map from file heightmap.csv: invalid grid error message. I have power cycled the printer quite a few times and web page reports the correct versions of firmware. What else can I try to see the heightmap? The heightmap.csv file cannot be read from the SD card when it is placed in the PC either.
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The heightmap.csv file cannot be read from the SD card when it is placed in the PC either.
That is why its not reading in the web interface. Maybe a new G29 to generate a new file to see if that sorts it.
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I am doing a G32 S2 which should save the heightmap to a csv file. After doing the routine and issuing an M374 the file is saved and I get a report that the file has been saved. It is when I try to read it with an M375 that I get the Error: Failed to load height map from file heightmap.csv: invalid grid
I have tried it many times since updating the firmware with the same result. I have verified that the heightmap.csv is on the SD card. Incidentally, a csv file should be able to be read from the PC and loaded into a spreadsheet but the PC cannot open the file either.
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G32 uses bed.g for bed levelling - the height map is produced by G29
See
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Okay, thanks for that. So where does G32 store the result?
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Okay, thanks for that. So where does G32 store the result?
In memory. So it's lost when you restart the firmware.
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lol I thought I was the only one doing FSR like this
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Tried a G29 and got an error message saying: Error: No valid grid defined for G29 bed probing
Where and how do I define a grid and why can't it use the G30/32 grid?
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Mike
This page has all the information:
https://duet3d.com/wiki/Using_mesh_bed_compensation#Define_the_mesh_size_and_spacingG32 and G29 are currently different, I recommend using G29
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stephenc,
I have a Sintratec SLS kit that I use for various things and while I am still sorting things out with it I thought I would make an FSR holder for my much upgraded OpenBeam Kossel Pro.How do I upload pictures? Tried the picture icon but it asked if I wanted to leave the page and lose any info!!
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Thanks T3P3Tony. Reading the right instructions helps a lot!!
I set up the M557 and M558 and ran a G29 and produced a very nice heightmap, thank you. Are these M codes remembered once the printer is switched off or do they need to be put into a config file?
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Add them at the end of the Config.g File and they will be remembered!
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Thanks Dougal1957 - will do.
