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· Nozzle heights on Olson Block and offsets
Unfortunately no.
The output of cura and s3d is gcode. Near the top of that gcode will be a g28 or a "g28 z0" or something similar which homes the bed at the bottom (UM2 - UMO homes at the top). Then Marlin firmware stores an offset such that when you move to postion z=0 the nozzle should just touch the glass.
If you home on the short nozzle, then when you put the long nozzle in it could break the glass - or at least put some heavy stress on the z stage when printing at Z=0. this would be the only solution where s3d could print the first layer at say Z=2 (2mm above normal z=0 position). I suppose this would actually work but if you forgot that you had the "long" nozzle in you could break the glass if you printed a job where it tried to print at z=0.
The alternative is to home on the long nozzle - this avoids the glass-breaking issue but now when you go to print you need to print the first layer at z= -2. But marlin does not support that - it will hit the "software end stop" and go no farther so you will be printing 2mm off the bed.
So there isn't really a fantastic solution. Really the best solution is to get tinker marlin. It allows you to change the Z home position by an exact amount e.g. 2.013mm so every time you change back and forth between nozzles you can tell your printer (using the front panel interface) how much to offset Z and in which direction.
Cura 5.7 is here and it brings a handy new workflow improvement when using Thingiverse and Cura together, as well as additional capabilities for Method series printers, and a powerful way of sharing print settings using new printer-agnostic project files! Read on to find out about all of these improvements and more.
S-Line Firmware 8.3.0 was released Nov. 20th on the "Latest" firmware branch.
(Sorry, was out of office when this released)
This update is for...
All UltiMaker S series
New features
Temperature status. During print preparation, the temperatures of the print cores and build plate will be shown on the display. This gives a better indication of the progress and remaining wait time. Save log files in paused state. It is now possible to save the printer's log files to USB if the currently active print job is paused. Previously, the Dump logs to USB option was only enabled if the printer was in idle state. Confirm print removal via Digital Factory. If the printer is connected to the Digital Factory, it is now possible to confirm the removal of a previous print job via the Digital Factory interface. This is useful in situations where the build plate is clear, but the operator forgot to select Confirm removal on the printer’s display. Visit this page for more information about this feature.
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gr5 2,167
Unfortunately no.
The output of cura and s3d is gcode. Near the top of that gcode will be a g28 or a "g28 z0" or something similar which homes the bed at the bottom (UM2 - UMO homes at the top). Then Marlin firmware stores an offset such that when you move to postion z=0 the nozzle should just touch the glass.
If you home on the short nozzle, then when you put the long nozzle in it could break the glass - or at least put some heavy stress on the z stage when printing at Z=0. this would be the only solution where s3d could print the first layer at say Z=2 (2mm above normal z=0 position). I suppose this would actually work but if you forgot that you had the "long" nozzle in you could break the glass if you printed a job where it tried to print at z=0.
The alternative is to home on the long nozzle - this avoids the glass-breaking issue but now when you go to print you need to print the first layer at z= -2. But marlin does not support that - it will hit the "software end stop" and go no farther so you will be printing 2mm off the bed.
So there isn't really a fantastic solution. Really the best solution is to get tinker marlin. It allows you to change the Z home position by an exact amount e.g. 2.013mm so every time you change back and forth between nozzles you can tell your printer (using the front panel interface) how much to offset Z and in which direction.
download here:
https://github.com/TinkerGnome/Ultimaker2Marlin/releases/tag/V15.03-RC1
discussion here:
https://ultimaker.com/en/community/view/8689-custom-heater-block-to-fit-e3d-nozzle-on-ultimaker-2?page=63#reply-109035
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