Originally Posted by
bald9eagle
Good stuff wiz. I think that I may have things mixed up on my axes. Facing the machine I call movement from front to back the X and left to right the Y. The Y is on my gantry while the X is the dual drive RP. The issue is definitely in my X movement. There is one thing you guys would see in my machine that I know some would be critical of and that is my lack of tension spring on my RP arms. What I did was use the grooves of the 8020 to slide my motor bracket up and down and lock it in. This would cause an issue (in my mind) if it came loose but it would be obvious. The plan is to change that later on. Anyway, I ruled that out. I did find the larger belt pulley had worked loose and had some wobble. Last night I measured the distance between my bearing blocks and end of my rail and found them to be .187 out. I then made a manual move and they were then -.125 out. We are talking about 5/16" movement! When I get home I'm going to tear down the motor and see if the pulley is loose on the shaft.