Z ofset no longer works after 3hr print.

This morning i made a 3hr print and ignoring the normal abs issues it printed out.

I leave it about an hour, go to print and the head is clicking because the hotened is to low???

Has anyone else had this and solved it?

Ran printrun and getting z= -1.74?

so confused.

I have added the G-code file im trying to print. it is for a DYP-ME0010-A smoke detector and is part of a project i am work on for my new 3d printer.

Edited 2 time(s). Last edit at 07/10/2016 01:25PM by GRAYWOLF.

What auto bed leveling system do you have?

---

Folger Tech 2020 i3 and FT-5 as well as modified JGAurora A5 with direct drive E3D/Titan. All running the BLTOUCH.
Great kits. Having fun and running the heck out of them.
Running Marlin 1.1.0 RC8 on the i3 and FT5. Custom firmware on A5.
Folger Tech Wiki board >[folgertech.wikia.com]

A good question..
It uses a microswitch, but doesn't trigger any more since firmware update.
I can't find an option to trigger it unless i'm missiing an "M" code

Are you talking a microswitch mounted on the print head or the microswitch mounted on the vertical rod?

---

Folger Tech 2020 i3 and FT-5 as well as modified JGAurora A5 with direct drive E3D/Titan. All running the BLTOUCH.
Great kits. Having fun and running the heck out of them.
Running Marlin 1.1.0 RC8 on the i3 and FT5. Custom firmware on A5.
Folger Tech Wiki board >[folgertech.wikia.com]

A microswitch on a antiwobble bracket that sits under the left hand side of the printer

Its this printer - http://www.thingiverse.com/thing:707109/#files

Well then you don't have auto bed leveling and I'm wondering why you are using Z offset. That's NOT how you set your first layer Z height.

---

Folger Tech 2020 i3 and FT-5 as well as modified JGAurora A5 with direct drive E3D/Titan. All running the BLTOUCH.
Great kits. Having fun and running the heck out of them.
Running Marlin 1.1.0 RC8 on the i3 and FT5. Custom firmware on A5.
Folger Tech Wiki board >[folgertech.wikia.com]