Does the original MK2 have a filament runout sensor?
Just like title says, does the original MK2 have a filament runout sensor and will it pause the print to reload if it detects an out-of-filament condition? Using firmware 3.2.3.
Thanks!
RE: Does the original MK2 have a filament runout sensor?
Hi Brian,
NO the Mk2 does not have a filament sensor
the updated Mk2.5 had a laser filament sensor which was problematic, and the Mk2.5S has an infrared filament sensor. unfortunately Prusa have discontinued the upgrade kit,
I believe the individual parts are still available on their website
https://www.prusa3d.com/category/mk2-5-mk2-5s/?page=3 
alternatively parts are available on Ebay and Ali Express
https://www.ebay.co.uk/itm/275284595587?hash=item40183d9383:g:nKYAAOSw2ypiZCpV
https://www.ebay.co.uk/itm/304511652768?hash=item46e64f13a0:g:6qIAAOSwnFxil-Qm
https://www.ebay.co.uk/itm/293043169357?hash=item443abbe84d:g:aYwAAOSwgYlcrJJF
https://www.ebay.co.uk/itm/265582095343?hash=item3dd5ed2bef:g:sz8AAOSwV2JiKIUY
https://www.ebay.co.uk/itm/294066273790?hash=item4477b73dfe:g:PCEAAOSwVx5gT7sL
the assembly guide link is below
https://help.prusa3d.com/guide/3-upgrading-to-mk2-s-and-mk2-5s_64832#64864
Please note I believe there are custom cable adapters to convert the filament sensor and part cooling fans to work with the Mk2.5S
the Mk2.5S / Mk3S Pinda, seems a bit difficult to locate, it has 4 wires as opposed to the mk2 and Mk3S+ pinda / spinda, which have 3 wires.
the linear bearing U Bolts are available, but not essential.
regards Joan
I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK
RE: Does the original MK2 have a filament runout sensor?
Thank you for such a detailed reply. I appreciate it!
RE: Does the original MK2 have a filament runout sensor?
My Pleasure. I hope it helps.
regards Joan
I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK
RE: Does the original MK2 have a filament runout sensor?
Just to add to this, I did the upgrade from MK2S to 2.5S using one of the "aftermarket aliexpress" kits. It went quite well, however if you go with such a kit make sure you have spare screws and nuts before you start, you can recover some from the old parts but at least in the kit I had some were missing.
Printer works as new now, at some point I’ll probably replace the "cloned ?" PINDA v2 with an original SuperPINDA. Which is why I did this upgrade in the first place, my PINDA v1 had died…
I should have bought the official upgrade package back when it was available, but eh.