Multiple independent z axis for syringe tools
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Good morning. I am developing a 3d biomprinter some time ago. Much of the design is finished and currently I have a working prototype where I am running firmware tests. I am a bit stuck at the moment in the routine of changing tools. The printer has 2 heads with syringes. Each head has a "Z" motion. Since the prints are always a few layers, it is not necessary to have a large Z. Each head has a top endstop. What I need is that each tool can make a "z probe" each time before printing (because the needles are always changed). I made a macro with G30 P0 associated to each tool, but when I run the macro the tool starts to heat up or cool down (according to the selected tool) and I don't want that, I want it to remain without turning on. And when the correct Z sensing is finished and I manually turn off the tool, the Z value returns to the original one, that is to say, the Z0 is lost. I attach the config and the macro. Thanks
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@falco22
You haven't shared your tool change files, but the heating is probably generated there.
Use T0 P0 to change the tool without running any macros
https://duet3d.dozuki.com/Wiki/Gcode#Section_T_Select_Tool -
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