I put a good part in the indexer, that is mounted to the table of a CNC drill, and pressed the green button. About two minutes later, I hear a BANG. This was the second part and the first one had run just fine. The pulley tap, which costs about $35, had snapped into two pieces. For some unknown reason, the indexer had rotated counterclockwise and had re-drilled the first hole, instead of drilling the third hole. The tap had tried to put threads into the third location, where there wasn't a hole.
Yesterday, I again had to run a part that required three radial holes, spaced at 120 degrees. Instead of being able to trust it, I needed to watch it, to see which direction it would rotate. Every part I ran(4 so far), it would randomly rotate counter clockwise. When it did, I would stop it, and manually rotate it to the correct location and have it either drill or tap in the correct location.
Isn't it odd that I can run it, but the supervisors have decide that no one else will be able to run it until it is fixed? I have Monday off and someone will look at it then. It appears to need new bearings, but I do not know if that makes it rotate the wrong direction.
Yesterday, I again had to run a part that required three radial holes, spaced at 120 degrees. Instead of being able to trust it, I needed to watch it, to see which direction it would rotate. Every part I ran(4 so far), it would randomly rotate counter clockwise. When it did, I would stop it, and manually rotate it to the correct location and have it either drill or tap in the correct location.
Isn't it odd that I can run it, but the supervisors have decide that no one else will be able to run it until it is fixed? I have Monday off and someone will look at it then. It appears to need new bearings, but I do not know if that makes it rotate the wrong direction.