Fixing up a used M2

[Karl_Williams]

I lucked out and bought a used M2 for $200 Canadian ($140 US). The previous owner wasn't skilled mechanically or with firmware and managed to destroy the entire extruder system. I originally thought that the Rambo board was destroyed but it turned out that all of the fuses were blown. I ordered the V4 Extruder upgrade, geared stepper, extruder wiring harness, Rambo 1.3 board and Metal case, Boro glass plate and a few other things. I'm about to put her back together so I'll post with progress photos as I go. This will be my second M2. My first M2 has the dual power supply and has been printing perfectly for almost 3 year now.



Karl

[Jules]

You lucky duck! Hell of a deal!

[Karl_Williams]

I got some work done on the M2 rebuild last night

Mounted the Rambo board in the new metal case:


Printed the V4 wiring box on my working M2:



Attached the V4 mounting plate:


Attached the metal motor mount:


Mounted the geared stepper:


Attached the wiring box:


Mounted the V4 hotend:


Filament guide attached to stepper gear box:


Keeping it cool:


Extruder harness wired up with connectors inside the box:


The Next steps will be to:
1. Attach the new Z-Axis endstop
2. Wire everything to the controller
3. Update the firmware
4. Level the bed
5. Set Z height
6. Test print!

[Tim]

Looking good so far! So clean and shiny. . .

[Karl_Williams]

The M2 upgrades are done and the prints are looking great I'm really loving the V4 upgrade.

Added the new Z-Axis end stop:





Wired up the new Rambo board:



Mounted the electronics in the metal enclosure and attached it to the frame. Uploaded the firmware:



Leveled the bed and set the Z height. Set up the M2 profile in Simplify3D and printed a test object:





All I need to do now is add some white lithium to the X and Y rails.
The M2 is the best!

[insta]

Ditch the fan guards

[Vandal968]

Excellent score. And yes, the factory fan guards are garbage. Loud garbage.

Cheers,c

[sthone]

That new metal electronics case is sexy I might have to get me a few of those.

Aren't you just suppose to oil the rails not grease them?

[Karl_Williams]

I think it's 2-in-1 for the round rods on the Z-Axis and greasing the X and Y linear rails and Z threaded rod with white lithium?

[ericthered]

And all this time I thought the fans were the source of the noise...not the guards. Life has been changed.

Also this is a really cool post. Thanks for sharing!