X End sensor

I'm a little bit confused. Is the proximity sensor for both X and Z? There are two holes that seems to be 'leftover' from a micro-switch that wasn't mounted (on the X-axis assembly near the motor.). Or might be I have forgotten to mount something there.
Anyway when I try to home X the end is reached and the motor is buzzing. Any help? I have tried to put a bit of reflecting folie but that don't help. Maybe I put it on the wrong place.

Hi nof,

yes the proximity sensor is also for X when homing. I detects the little lug below when X ist at 0.

Markus

---

XBee & electronics blog: [lookmanowire.blogspot.com]

Thank you Markus. I put the reflective tape on the right place and now the homing works.

Hi nof,

Quote
nof
I'm a little bit confused. Is the proximity sensor for both X and Z? There are two holes that seems to be 'leftover' from a micro-switch that wasn't mounted (on the X-axis assembly near the motor.). Or might be I have forgotten to mount something there.
Anyway when I try to home X the end is reached and the motor is buzzing. Any help? I have tried to put a bit of reflecting folie but that don't help. Maybe I put it on the wrong place.

Yes you are correct regarding X and Z. (The Y axis uses the microswitch).
Even your cure with foil is correct and as suggested and goes on the little tab that protrudes from the motor mount (that drives X) that is on the Z slide. (i.e. it is close to the Z threaded studding)



See [forums.reprap.org] for other discussions on this.

The proximity sensor is an LED, so has to be connected with the right polarity; check with the wiring instructions.
You're right, the extra holes in the X motor axis are for endstops - we realised if anyone wanted to print out their own Ormerod, they may not have access to the IR sensor, so may want to fit a microswitch as an endstop instead.

Ian
RepRapPro tech support

Thank you for your information. I'm aware of the polarity is important. There is another problem with the sensor. The connector will not go all the way on the pins. The recess in the X-carriage is to small If I loosen the upper screw that holds the sensor I can get it on as it should but when I tighten the screw and run the X-homing it will eventually slid of the pins. I will not be able to work with my Ormerod until after New Year but I will follow this forum while I am away.

Hi nof

I don't quite follow what your problem is. Can you post a picture of it? If you haven't gone on holiday already...

Ian
RepRapPro tech support