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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

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 bobstro:

Posted by: @skermiebrotechtips

What I mean is to have two drive gears in the extruder instead of a drive gear and a bearing.

Ah, OK. I usually see that referred to as a "geared" or "dual-geared extruder". I thought you meant something with dual motors.

The (discontinued) Mk2/s to Mk2.5S upgrade kit mentions a Bondtech upgrade, so you might look into those parts. @joantabb is our resident legacy Prusa expert. She might know more.

It might be easier to adapt something like a BMG, aero, or another extruder that is more modular.

This topic was modified 9 months ago 3 times by SkermiebroTechTips
Posted : 24/08/2021 1:05 am
cwbullet
(@cwbullet)
Part by part

This might help:

https://shop.prusa3d.com/en/original-prusa-i3-mk3s/182-original-prusa-i3-mk2s-to-mk3-upgrade-kit.html

and 

The assembly manuals:

https://help.prusa3d.com/en/category/assembly-manuals_272

I could not find a better resource.  

--------------------
Chuck H
3D Printer Review Blog

Posted : 05/09/2021 11:31 am
3Delight
(@3delight)
Moderator
Not the right forum to ask on.

Your best idea is to go to a general 3D printing forum such as reddit or facebook.  This forum is for users of Official Prusa Research made printers not clones.  While the users on here might be able to give general advice it is unlikely people will be able to help with upgrading clones and this forum is not the place to discuss this.

 

Posted : 05/09/2021 4:57 pm
bobstro
(@bobstro)
Illustrious Member
Do you mean dual nozzle?
Posted by: @skermiebrotechtips

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

Sorry, what do you mean by "dual drive extruder"? Do you mean a 2 in-1 out extruder or 2-in 2-out dual hotend setup? If so, none of the official Prusa printers are offered in this configuration, so you are likely going to have to find a design elsewhere to do so.

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 : 05/09/2021 5:19 pm
SkermiebroTechTips
(@skermiebrotechtips)
Active Member
Topic starter answered:
re: Do you mean dual nozzle?

What I mean is to have two drive gears in the extruder instead of a drive gear and a bearing.

Posted : 06/09/2021 11:00 pm
cwbullet
(@cwbullet)
bondtech

So like a Bondtech?  

Posted by: @skermiebrotechtips

What I mean is to have two drive gears in the extruder instead of a drive gear and a bearing.

 

--------------------
Chuck H
3D Printer Review Blog

Posted : 06/09/2021 11:49 pm
bobstro
(@bobstro)
Illustrious Member
Mk2/s to Mk2.5S included the upgraded bondtech extruder gears
Posted by: @skermiebrotechtips

What I mean is to have two drive gears in the extruder instead of a drive gear and a bearing.

Ah, OK. I usually see that referred to as a "geared" or "dual-geared extruder". I thought you meant something with dual motors.

The (discontinued) Mk2/s to Mk2.5S upgrade kit mentions a Bondtech upgrade, so you might look into those parts. @joantabb is our resident legacy Prusa expert. She might know more.

It might be easier to adapt something like a BMG, aero, or another extruder that is more modular.

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 : 07/09/2021 2:19 pm
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