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Double extruder, double BLTouch

Posted by Starliner 
Double extruder, double BLTouch
November 26, 2019 03:54AM
Hi All,
I'm usign a cartesian printer based on Duet board and RepRapFirmware for Duet 2 V2.02.

I was just wondering if it would be possible to mount two BLTouch, one for each extruder, in order to make the secondary nozzle independent from the probe calibrations (M558, G31) related to the primary nozzle.

Thank you!

Understanding the universe since the last century.
Re: Double extruder, double BLTouch
November 27, 2019 03:16AM
I presume this is an IDEX machine, because if both extruders are on the same carriage, you only need one BLTouch.

You can connect two BLTouch probes to a Duet WiFi, Duet Ethernet or Duet 3 if you run RepRapFirmware 3 on it. You would switch between the two using a macro. You would store 2 height map files on the SD card and load the correct one for the incoming tool head in the tpre or tpost file for that tool.

Large delta printer [miscsolutions.wordpress.com], E3D tool changer, Robotdigg SCARA printer, Crane Quad and Ormerod

Disclosure: I design Duet electronics and work on RepRapFirmware, [duet3d.com].
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