Hey all, Anyone using the Micro Arc Homing Sensor? If so have you permanently mounted it to the MA? Seems so thoughtless that there is not an off-the-shelf mounting solution to permanently locate and mount it to the 4th axis. Maybe I just don’t understand the use of it yet, IS it even necessary to permanently mount it, make sense to me, any comments welcome. Ive not used the 4th axis yet so not sure on the function of the it. For the current part set up Im going to be using it to index 5 sides of a part and the rotation angles need to be dead on to the part. Ive downloaded futnuh chip guard and thinking about integrating the sensor into his part. Thanks to futnuh for sharing the file. IF I do this I will post it here for others to use.
I don’t think it’s necessary. The only time you would use the homing sensor is if you rotated a part and then turned the machine off then back on and continued cutting the same part.
OK. Since I have not used the 4th axis yet I guess I don’t have a perspective on its function and CAM set up. So orienting the rotations on the machine and making sure it 0s out does not really even come into play I guess, then RIGHT? Since all rotations are being dictated by CAM, right?
Two scenarios.
Without sensor.
When you power on the machine and hit reference the A axis does not move. The work offset table for A is appended to the current value.
With the sensor
When you power on the machine and hit reference the A axis will spin until the hal sensor triggers and the work offset table will not be appended.
I would say that there is no way that the sensor is accurate enough to reference within 26 arc seconds which is the resolution of the MicroArc. I say this because to resolve to this resolution the sensor would have to resolve 1/138 of a degree which is possible but prohibitively expensive in this scale.
If you are using the A axis you are better off finishing the program or typing A0 before shutting down.
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