Got a broken cube off eBay and gutted it now building it with a ramps board and a budda nozzle coming together pretty good so far.
Nice little project, Great internal pics also 
That’s an interesting approach. I will have to keep an eye out for the Cube 3rd gen model for a similar project.
What was broken on it?
There are a few things that need improvement with the Cube and some were addressed with the 3rd gen. The 2nd generation required quite a bit of manual interaction to get a decent print. A good bit of that was automated with the newer model. Locked down filament is a negative for these printers. The 3rd gen prices out the filament at US$150 per kilogram and there does not appear to be a work-around as there is for the 2nd generation model.
The 3rd generation creates some good prints and as a dual extruder, allows use of wash-away support material. It uses surprisingly little material and the results on overhangs are nearly as clean as the upper surfaces.
The cartridges for the 3rd generation have a poorly designed bowden tube, which is easily damaged, but careful use reduces that problem.
It would have been easy to correct the minor design flaws had 3D Systems not orphaned the product.
If it’s too big for the puny rails (grin), it’s probably too big for two of them! The dual extruding part is a great feature, although I rarely use it for two colors. The print time increases by a factor greater than two, so it’s used primarily for “larger” prints and severe overhangs/supports. I’m able to print diagonally models that won’t fit in my 150mm circular build area on my Flux Delta. 150mm square on the 3rd gen has a comfortable margin on the diagonal.
the controller board was broken in it, and the extruder clicked and wouldnt heat up according to the ebay ad. The plastic was my doing I could/should have left it stock without cutting it up but bare metal frame looks better to me anyway. Once I hooked it up to the ramps board , which was easy since they break out all the axis in some nice headers, all I had to do was match up colors and plug in. I would like to reuse/ repurpose the touch screen but cant find much about it online.
@Nathan_Walkner
no flex on the mounting rails they can handle that, the rails are the hwin 9mm ones mgn9.
working now on the Z homing. All my other printers have been home to Z- this one homes to Z+ and once the stepper timeout (in the firmware) it drops the Z down so I need to address that also. Its a learning experience but shouldn’t be to much to conquer.
The printer is moving and parsing gcode, and tuned the stepper drivers and quieted it down from the rattle trap that is sounded like, next up source a print bed surface and will call this one done
https://www.instagram.com/p/BEYo6JECCwh/ video of it moving in the lab