Hey I created a grinder with the core on Impact in forge. It is phased into the ground just enough so you can fit a scorpion tanks front tracks under it. You will need a block 4x4 tall to place on the other end at a 15 degree incline. This block keeps the core from pushing you out the other side. If you could make a tutorial on it to show it to the community that would be great!!! If you have any questions you can send me a message on XBOX LIVE. My gamertag is PICS NICS.