Notifications
Clear all

Selftest print fan failure  

  RSS
Shelby Teknologies
(@shelby-teknologies)
Active Member
Selftest print fan failure

To provide a little background first.

 

I built my i3 mk3 last november and had really good success putting it together other than getting the Z axis sensor calibrated it was fairly rock solid.

 

I just received my MMU2s kit as the mk3s and mmu2s were released not long after I ordered the MMU2.

 

The overhaul of the print head was a bit more complicated than the mk3 and I broke the fan shroud piece (another is on order) but I can make it fit for now however after all the rewiring I have everything connected and ran in to two issues:

 

1) during the selftest it says print fan failed.  Both fans will spin as normal but seems the print head one isnt detecting the rpm?  I'm not sure if both use the rpm detection but based on some of the github posts I'm wondering if this is a problem with the 3.7.0 firmware as I saw reference to this.

2) my MMU show NA in the info/support display.  I'm not sure what the issue is there.  Any ideas?  The lights are on the PCB so it is getting power but it isnt being recognized by the Einsy.

 

 

Napsal : 13/05/2019 12:11 am
Shelby Teknologies
(@shelby-teknologies)
Active Member
Topic starter answered:
RE: Selftest print fan failure

Problem #2 has been fixed after reattaching the cable to the Einsy.  Having the orange connector there would have helped but my mk3 didnt come with one originally.

This post was modified před 6 years by Shelby Teknologies
Napsal : 13/05/2019 1:05 am
Shelby Teknologies
(@shelby-teknologies)
Active Member
Topic starter answered:
RE: Selftest print fan failure

I sent a message to support and they were most helpful. All the issues have been resolved with the 3.7.1 firmware and the printer is back to calibrating again.  I just have to fix the F1 loading on the MMU2s and I should be back to working again.

Prusa support is extremely helpful for what its worth.

Napsal : 15/05/2019 3:55 am
Share: