I modified my M2 about 6 years ago to have a 12.17" x 9.75 build area with a closed-loop feedback build volume. I think the z height is increased too. I got this almost to the finish line then ran out of gas. I tested it using a hairdryer for a heat source and it worked except the Y-axis was missing steps for some reason. I got burned out and quit working on it. I'm cleaning out my work area and want to pass it on.
Let me know if you are interested in any of the build details, Inventor CAD models, or if you want to purchase the machine.
Pictures and free drawings for the enclosure and modified parts are located here...
www.shophacks.com/modifiedm2
![Image](https://www.shophacks.com/uploads/1/1/7/5/117597230/modified-makergear-m2-electronics-compartment_orig.jpg)