800mxz, I'm running 01.03.07 which I think is a fairly new version. One new problem developed after this latest was installed. The spindle often has problems orientating during tool-change. The 88HS control had a gain setting to deal with this. I don’t see one with the 104d.
Other problems include issues with G2 & G3 moves. When I was using I & J, the machine would sometimes run a full arc, even though it was programmed as an arc segment. I switched to using “R” to define the arcs, breaking the arc in quadrants. It has gotten better, but is still undependable. Often I get an error, “error occurred while trying to calculate the center using radius designation”. Sometimes it will give this error in the second part, but not the first.
One of my favorite errors is when the machine comes to a grinding halt in the middle of a cut. “HMI encountered a critical error”. This is sometimes followed by axis drift, which of course, because the tool is down, snaps the tool in half, gouges the part and damages the entire setup. It has done this even drilling a simple hole.
I have problems with feed rates, even using just G1 moves. This problem seems to get worse and worse when moving in three axis simultaneously, but will do this with just two axis moves. The actual feed rate is often 1/4 of the programmed feed rate. This is sometimes accompanied by a dwell between moves, kinda like a feed-ramps was left on.
I have plenty more problems, but I would be just happy at this stage to be able to run any part with some confidence. As it is, I get a knot in my stomach when I have an expensive piece of material in the machine and I cannot leave the machine with an operator. The errors are too numerous and the recovery is too difficult to leave an inexperienced person. I’ll be happy when things get better.
If you have any sugestions as to the cause of some of these problems, it would be so much apreciated. The local Fadal rep is as baffled as I am.  |