I'm having some issues cutting with my TM3 Table (its about 10 years old), it will cut fine, and then all of a sudden the movement of the table gets messed up (I've attached a picture of my compute screen showing what it should look like, and a picture of the part on the table), I'm not sure if its a mechanical issue (slippage of the gears on the motors), or a motor going bad, or a shorted wire, or something else.