Thanks again for a useful reply.
Related to comparing data over time:
There could be one point:
Original tool path is fed to machine controller (Siumeric 840D in my case) which commands the machine axes. The measured tool path is then measured and saved in computer.
Now it seems possible to lock the Point #1 in both paths over time. But locking the further point over time could be reliable?
Because I guess, machine controller has a small delay (processing time) between input and output. Theoretically this delay is due to sample and time, calculation etc. The total delay may not be a constant value but a variable throughout the trajectory (not 100% sure). In the case this is a variable delay, it may not be reliable to lock further points of path based upon the time information.
I would be thankful for further assistance and correction.
Regards
simr |