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« on: February 12, 2011, 05:25:52 PM »
I understand what you are saying. I don't have a problem with this but I know my customers will. If you watch a really good CNC operator lets say on a lathe, he only uses the cycle start, feed hold and FRO. Imagine coming up to a shoulder, he would be using the cycle start and feed hold and may have the FRO set below max rapid, he needs to know that the will stop when he wants it to, not overrun. I am using a closed loop system and I'm not loosing postion when in rapid and I stop dead, I don't get a following error at 120"/min.
I did some more tests. Now, for some reason I can press program stop and then cycle start again (couldn't do that yesterday) and what happens is It must look at the look ahead blocks (lets say 100 blocks) restarts ignores all the blocks between the stop point and starts a 100 blocks ahead like nothing happened except the spindle turned off, and I don't loose postion.
I know It's not a big ticket item like Fanuc and that's why I am testing it, big price difference and I think it's great.
I have a milltronics with servos and encoders and a 386SX computer and stops on a dime in feed hold.
I am not knocking it, but I have never seen a control PC or otherwise stop like this.
Ray.