Anet ET 5 Touch-Mi Mount by PrintorElse

Last crawled date: 3 years, 1 month ago

Quick and easy to print mount for the Touch-Mi from Hotends.fr for the Anet ET5 / Anet ET5 X / Anet ET5 Pro.
Notice:
The installation of the Touch-Mi requires a printer flashed with Marlin
(recommended: Marlin 2.0).
The design is for ISO 7380 pan-head screws (stainless steel version recommended).
There is one version with M3 screw connection and another version with M4 screw connection.
Warning:
Installation of the Touch-Mi requires modifications to the printer's electrical hardware. Work on electrical systems should only be performed with the appropriate expertise. I assume no liability for damage or injury resulting from following these instructions. Errors and inaccuracies excepted.
Installation:
Remove the fan cover from the printhead.
Remove the old sensor together with the sensor holder.
Reattach the fan cover to the printhead.
Insert the supplied M3 nut into the slotted hole on the back of the Touch-Mi mount.
Take a pair of narrow pliers or tweezers and insert a M3/M4 nut through the upper sensor opening and attach the Touch-Mi-Mount to the fan cover.
Attach the Touch-Mi sensor to the Touch-Mi mount.
Insert the supplied magnet into the magnet mount and attach the mount to the X-axis profile near the X limit switch.
Set up the sensor according to the original Touch-Mi instructions.
It should be noted that the Touch-Mi operates with 3.3V to 5V and the original sensor of the printer with 24V. The voltage must be adjusted with a DC-DC step-down converter.
I have a design for an LM9625S converter case on Thingiverse that fits the Anet ET5:
https://www.thingiverse.com/thing:4777704
The Touch-Mi can be connected according to the attached diagram (Please double check that the connections on your printer actually match the diagram.).
Since the position of the Touch-Mi differs from the original sensor, the sensor offset in the configuration.h must be adjusted in the Marlin firmware as follows:
' #define NOZZLE_TO_PROBE_OFFSET { -44, -8.5, 0 } '
After installation and setup of the sensor, it is recommended to center the print bed.
There are suitable instructions for this on YouTube (e.g. from Crosslink: 'Bed centering with Marlin Firmware 1.1.X' ).