XYZ Calibration issues  

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nathanmoore
(@nathanmoore)
Active Member

HELP! 

I have inherited a 3D printer at work and I am having trouble calibrating the XYZ (first step I know... 🙄 ). When I go to calibrate the XYZ I move the extruder up to the top of the Z as specified, then complete the other tasks to let it run. When the calibration starts running the extruder doesn’t move down to the bed, it stays at the top and completes the calibration movements. I am unsure why this is happening, my first thoughts were an interference or an issue with the probe?

 

any help would be greatly appreciated, I need to print out some prototypes ASAP! 

I have attached a photo during the calibration, as you can see it is at the top of the Z axis

Kind regards, 

Nathan

Posted : 19/06/2019 7:39 pm
Tim
(@tim-m30)
Illustrious Member

There's a red LED on the top of the PINDA probe.  Is it ON?  

The PINDA is the silver screw-like object with a wire out the top, lower right side of extruder, that looks like it has an eraser at the bottom tip. The LED is at the top and visible through the filler.

 

 

This post was modified 1 year ago by Tim
It is always wise to get more than one opinion......
Posted : 19/06/2019 7:57 pm
nathanmoore
(@nathanmoore)
Active Member

Hi Tim,

Thank you very much for your reply!

I could not see a red light on the probe, what does this mean?

Also, the end stops section for ‘Z’ was 1 and I read it should start at 0? 

Sorry for the vagueness of the information, I am quite new to this! 

Posted : 19/06/2019 8:24 pm
david.a66
(@david-a66)
Honorable Member

probe connector connected wrong  to EISNY board - double check it's on the correct pins

Posted : 19/06/2019 8:29 pm
nathanmoore
(@nathanmoore)
Active Member

David,

Thank you very much for your suggestion.

I just checked this from an annotated image that I found online, it looks like it is in the correct position. I would have assumed it was in the correct position considering it has been used prior to my involvement. 

Posted : 19/06/2019 8:40 pm
Tim
(@tim-m30)
Illustrious Member

Unfortunately, broken wires are known to happen.   It's possible the reason you got the printer at a discount is it wasn't working.   Watch the status display - 1 - and wiggle the extruder wire bundle and see if it changes or flickers.  

A new PINDA isn't that expensive, and is easy to replace.  But if the PINDA wires are broken you should be aware and keep watch for other broken wires: they manifest as odd printing problems, often difficult to troubleshoot and will send you down a lot of rabbit holes. 

 

 

It is always wise to get more than one opinion......
Posted : 19/06/2019 8:45 pm
nathanmoore
(@nathanmoore)
Active Member

I feel like I might have quite a task on my hands getting the printer back to working order... 

Do you have any recommendations on which PINDA probes are the best to buy as a replacement?

Posted : 19/06/2019 8:57 pm
Tim
(@tim-m30)
Illustrious Member

Prusa: just be aware the shipping is usually as expensive as the part.  The Prusa probe is special - it has an internal thermistor that most probes don't have.  I've done cursory searches, but never found a suitable replacement.  

https://shop.prusa3d.com/en/mk3mk3s/200-mk3-pinda-v2.html

 

You might want to check, as a just in case, that the PINA is attached correctly to the EINSY.  Remove the one screw to open the EINSY case door and verify the PINDA is securely connected. The cable should be polarized and only plugs in one way.  But perhaps it came loose.

 

ps: This Amazon link may work... at least one of the reviewers says it is plug-and-play.

https://www.amazon.com/FYSETC-Prusa-Leveling-Sensor-Reprap/dp/B07JFVTBZV

And this one looks right ... but ...

https://www.amazon.com/Semoic-Reprap-Self-Leveling-Compatible-Printer/dp/B07MHVZWQT

This post was modified 1 year ago 2 times by Tim
It is always wise to get more than one opinion......
Posted : 19/06/2019 9:13 pm
BillCampbell
(@billcampbell)
Reputable Member

This is the MK2 forum. The PINDA does NOT have a temperature sensor built in - that's new on the MK3/S.

Make sure you are in MK2/S spare parts on Prusa shop when you select to purchase the PINDA and you will get the correct 3 wire sensor for your machine.

This post was modified 1 year ago by BillCampbell
Bill
Tagaytay City, Philippines
Founder member of Philippines Prusa Printer Owners FB Group
Sponsor Pillars of God Academy in Bacoor...
Posted : 20/06/2019 4:06 am
bobstro
(@bobstro)
Illustrious Member
Posted by: nathanmoore

I feel like I might have quite a task on my hands getting the printer back to working order... 

Looking at that picture, the wrap for the cabling to the extruder is missing, indicating someone's been digging about. You might want to do some other testing before you order parts to combine orders to keep shipping costs down. 

My notes and disclaimers on 3D printing and miscellaneous other tech projects
He is intelligent, but not experienced. His pattern indicates two dimensional thinking. -- Spock in Star Trek: The Wrath of Khan...
Posted : 20/06/2019 4:30 am
Tim
(@tim-m30)
Illustrious Member
Posted by: BillCampbell

This is the MK2 forum. The PINDA does NOT have a temperature sensor built in - that's new on the MK3/S.

Make sure you are in MK2/S spare parts on Prusa shop when you select to purchase the PINDA and you will get the correct 3 wire sensor for your machine.

Good catch Bill -  I looked at his photo and came away with a MK3, not a Mk2 ... go figure.  I wish Prusa would fix the forum default image link issue.

It is always wise to get more than one opinion......
Posted : 20/06/2019 4:57 pm
Tim
(@tim-m30)
Illustrious Member

This is the MK2 probe ...

https://shop.prusa3d.com/en/mk2mk2s/127-mk2s-pinda-probe.html

 

It is always wise to get more than one opinion......
Posted : 20/06/2019 5:09 pm
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