By the way i have found one thread about this topic: https://forum.duet3d.com/topic/18942/calculating-tool-offset-cnc/3?_=1604994474624

Latest posts made by Philipp.R
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RE: Automatic Tool Z-Offset Correction
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RE: Automatic Tool Z-Offset Correction
@dc42 thank you for the quick answer.
Do i have to configure also the "Tool Heigt Probe" like the BL-Touch in the config.g with the M558 and G10 command.What i don't understand is were do i have to change the the Tool Z-Offset? directly in the config.g file or do i have override the value bevor printing?
It would be great if you have more detailed information about this problem or also when tere is a thread who already a discussion is been made. Unfortunately i diddn't found the right information in the forum.
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Automatic Tool Z-Offset Correction
Hi,
i want to use a "Tool Height Probe" (mechanical switch like in the picture below) to detect the actual Nozzle height for different tools at one 3D-Printer at a certain Temperature.
I thought one possibillity to achive this is to override the Z-Offset in the config.g file at the selectet Tool.
I would like to use G-Code Meta Commands: https://duet3d.dozuki.com/Wiki/GCode_Meta_Commands
But im not sure if it is possible, because variable declaration and assignment is not implementet yet.Also i would like to know if ther is another posibility to change the Tool Z-Offset without going into the config.g file and the need to restar the firmware.
I use:
Toolchanger (4 Tools)
BL-Touch (Mesh bed compensation)
Duet2 Ethernet Board
Firmware 3.1.1I would be glad if you guys have some thoughts on this projekt. Also maybe there is someone who already implemented such system into a 3D-Printer or have a differernt way to achive it.
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RE: Mesh Bed Compensation with only one Z-Axis
@fcwilt Yes i did a G30 command but i think i didn't reload the heighmap
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RE: Mesh Bed Compensation with only one Z-Axis
@davidvh86 no i did not included the loading sequence at the beginning of the print but i'll try it
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RE: Mesh Bed Compensation with only one Z-Axis
@fcwilt thank you for clarifying the difference.
I recently tried Mesh Bed Compensation at my own printer. I used G29 and Probed the Bed with my BL-Touch, i got also a heighmap.csv file... and enebled the Mesh Bed Compensation but it didn't worked (Z-Axis was not correcting the heigh or low spots). Is there maximum error needed that the compensation works? Because i also created an error of over 1 mm to see if the Z-Axis is moving.
I try it again and see if it works.
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Mesh Bed Compensation with only one Z-Axis
Hi,
i know there are may discussions about "Mesh Bed Compensation" in this forum. But i couldn't find a answer why Mesh Bed compensation is only possible with two or more Z-Axis. As far as i understand it is, that the independend Z-Axis are only there to level the bed. And not to compensate any hills in the heatbed am i right?
Let's say i use a Heated bed, which mostly everybody uses, i get more or less warping effect of the printbed due to different heatbed temperatures.
What i really want is that my Z-axis is moving up or down at the "Hills of the Heatbed" so that i get a consistant layerheight of the first layer.So why doesn't work it with only one Z-Axis either or does it and i did got this wrong?
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RE: Pin security of sys files via DWC
@zapta your'e right I only want to reduce the chance of unintentional changes. In first place I would only secure the system files like Config.g, Home.g ...
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RE: Pin security of sys files via DWC
@zapta yes I think so. But I haven't thought it all the way through yet. If you have some suggestion, I'll be very thankful.
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RE: Pin security of sys files via DWC
Thanks for the answers. At the moment I will try the M551 comment, but for long therm application I try it to implement it by my own at the DWC.