gradually more functionality will become available with software upgrades....
You are so right: there is simply no way you can get a bell to whistle reliably by "guesstimating" it from usage data collected by software.
Imho some small and cheap pieces of hardware (IR sender + receiver or something similar) plus a little programming is all that you need to have a reliable "out-of-filament" notification system. Goes without saying that the software piece also has to put things on hold when the alarm is raised, and needs to go through the normal hoops of loading it up, purging, etc.
Edited by Guest
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ultiarjan 1,223
If you run out the machine will not notice and just continue printing air.
If you notice yourself you can indeed pause and change the material.
In theory the machine should be able to track the amount left on a spool when you use the tagged Ultimaker spools in combination with the material use data from CURA, but this would only work if you only use the material on an UM3, and stuff like failed prints might make it less reliable. I really don't know if this functionality is currently somewhere on Ultimakers to-do list, but it should be possible. Like @daid mentioned, see the UM3 like a Tesla, gradually more functionality will become available with software upgrades....
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