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Mk2s to Mk3s upgrade questions  

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SkermiebroTechTips
(@skermiebrotechtips)
Active Member
Mk2s to Mk3s upgrade questions

I have a Prusa i3 mk2s made as cheaply as possible (see picture)

 

 

The printer is running modded firmware to compensate for a smaller bed, any help with upgrading the firmware would be good too

I'm wondering what it would take to upgrade this to an i3 for a dual drive extruder 

I would like to know what parts that I would have to print 

sorry if I posted this to the wrong area as I am new to these forums

thanks

Best Answer by JoanTabb:

Trying to fully upgrade to the Mk3S is not cost effective. If you only want the bondtech two gear drive, then you could Buy the gears,  print the Mk2.5S extruder assembly, ignore the filament sensor (use the adapter from the MMU2 version of the Mk3S+ extruder, because this removes the hole for the filament sensor ball. )
and use a 12 volt 40mm fan on the left of the extruder.

the Bondtech gears are larger diameter than the Mk2 hobbed gear. so you would need to change the e Steps per milimetre for the firmware
(this can be done with Gcodes)

regards Joan

This topic was modified 9 months ago by SkermiebroTechTips
Posted : 24/08/2021 1:13 am
JoanTabb
(@joantabb)
Moderator

Trying to fully upgrade to the Mk3S is not cost effective. If you only want the bondtech two gear drive, then you could Buy the gears,  print the Mk2.5S extruder assembly, ignore the filament sensor (use the adapter from the MMU2 version of the Mk3S+ extruder, because this removes the hole for the filament sensor ball. )
and use a 12 volt 40mm fan on the left of the extruder.

the Bondtech gears are larger diameter than the Mk2 hobbed gear. so you would need to change the e Steps per milimetre for the firmware
(this can be done with Gcodes)

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

Posted : 24/08/2021 1:43 am
SkermiebroTechTips
(@skermiebrotechtips)
Active Member
Topic starter answered:
Bed leveling

Have you got any tips for leveling the bed, as I use the type with springs and bolts?

Posted : 24/08/2021 2:01 am
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