Z axis endstop not activating (Help!)
 
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Z axis endstop not activating (Help!)  

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Kryssie
(@kryssie)
Trusted Member
Z axis endstop not activating (Help!)

Hi,

I've been using the i3 MK2 for 4 days and 9 hours without mishap, printing with PLA and XT-CF20.
I tried to start an ABS print just now and the bed leveling went nuts, trying to push through the bed and leaving a hole in the PEI surface from the 255°C nozzle and pulling the Z axis off level. After reset, I re-leveled the z axis and tried the self-test, resulting in "z axis endstop not reached" error message.

How is this possible? The machine hasn't been moved, I maintain the bed surface and all moving parts, the print this morning was perfect as usual... Do PINDA prodes 'die'? How do I find out what the cause is and how to fix it?

Thanks,
Kryssie

Fair farren

Posted : 29/05/2017 7:00 am
PJR
 PJR
(@pjr)
Antient Member Moderator
Re: Z axis endstop not activating (Help!)

Do PINDA prodes 'die'? How do I find out what the cause is and how to fix it?

Unfortunately , yes they do. Usually a cable break just behind the extruder; the upgraded cable management of the Mk2S is designed to fix exactly this issue.

The constant movement at the point behind the extruder where the probe cable turns 90 degrees to enter the cable bundle can cause internal cable breaks which can be intermittent.

It is possible to repair this, but it may be better to get a replacement. Depending on how long you have had the printer, you could contact support ("Live Chat") or simply buy a replacement from the shop.

Peter

Please note: I do not have any affiliation with Prusa Research. Any advices given are offered in good faith. It is your responsibility to ensure that by following my advice you do not suffer or cause injury, damage…

Posted : 29/05/2017 10:09 am
nathan.d6
(@nathan-d6)
New Member
Re: Z axis endstop not activating (Help!)

I am planning to modify the the x-axis carriage to replace the sharp 90 degree corners with a mm or two radius. First, I have to learn some Opencad!

Posted : 28/06/2017 8:38 pm
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