Mankati Full Scale XT inductive M12 homing sensor mount
Obliczymy ostateczną cenę na podstawie wybranego pliku. Sprawdzisz ją i zaakceptujesz przed płatnością.
Zapisane na tym urządzeniu.
Replaces or augments the standard limit micro-switch for the Z axis, for contactless and reduced-risk homing.
- Ocena
- 0 / 5
- Polubienia
- 0
- Pobrania
- 6
- Wydruki
- 0
- Wyświetlenia
- 47
- Oceny
- 0
Aktualizacja u źródła:
Informacje o modelu
- Źródło
- Printables
- Kategoria
- Other Printer Parts & Upgrades
- Licencja
- Creative Commons — Attribution — Share Alike
Homing is performed with the inductive sensor. The micro-switch is supposed to just stay untriggered during normal operation (even at position Z=0), so it can act as an ‘overtravel’ emergency stop.
A few reasons for this home sensor modification:
- It keeps a fair distance between the nozzle and the bed during the whole homing procedure (at least 30mm can be achieved). This allows for my next modification plans: a retractable nozzle wiper and ‘ooze bucket’.
- Additional fail-safe during homing: in the original situation, a micro-switch failure would lead to a serious head crash with possible damage to the whole X-Y suspension.
- The micro-switch protects heads and build plate in case of missed steps in Z-direction.
The bracket is not square, to allow the sensor (and its cable) to go behind the main Z spindle.
Both STL files are printable without supports. Both bracket models can be mounted to the rear panel with M3 nuts and bolts. The micro-switch can be mounted with M2.5 nuts and bolts (as in the photos), or with M3 bolts from the inside (this microswitch had M3 thread).
An example on how to use the sensor in a custom homing sequence in Klipper is available here: https://gist.github.com/mtenberge/1a82b873ac7692d56bd4e6781795d05a
Klipper currently has no support for end-of-travel switches. As possible solution for the micro-switch is to use its input in the [display] section, as kill_pin.