The Angles or Arches are the movements that pivot the blade motors to angle. That is done with a semi circular arch, 50-2 chain gearbox, motor and encoder. The gearbox for the angle movement is a hollow shaft gearbox with a shaft and sprocket to drive the number 50-2 chain around the arch. The other end of the shaft contains the encoder which tracks the position on the angle movement.
Centerlines are saw blade movements on the Y Axis (vertical movements - up & down). All Retro C component saws contain one of two versions depending on the generation of the saw.
A "crashed" blade occurs when the Retro C's carriage tries to move in, toward the stationary side while there is still lumber in the saw. When this happens one or more of the saw blades themselves can become damaged, break or bend. But more often than that, the entire head will move slightly on the motor mount that connects it to the frame.
When doing calibration on a saw head one of the things you will need to do is verify the max and min values. The Centerline moves up and down via a motor and chain and is only stopped because the motor mount bracket can’t move any more because it is stopped by the saw frame.
If you are experiencing constant or persistent noises coming from one of your blade motors the cause is typically one of three things. 1) Metal Vibrating 2) Brake Assembly is loose 3) A motor has gone bad.
If you get the error "Stall: Centerline 5-v25" during a setup, it can be because blade 5 is hitting the end stop. One possible reason this could be occurring is that the saw is out of calibration and the minimum position (the lowest possible position the centerline can go before hitting the end stop) needs to be recalibrated.
The purpose of this article is to explain how to tighten the centerline slide enough so that vibration does not allow it to move during setup while allowing it to move during normal operation.