Originally Posted by Al_The_Man  I am puzzled how a machine is able to be sold with this condition to perform an unsafe E-stop as it appears to contravene the Electrical code and NFPA79 recommendations.
This is why Safety Relays are replacing normal E-stop relay practice and will probably become mandatory in N.A. also.
Al. |
This would depend on the way the the e stop would be applied, sorry but there was not enough information posted. I am referencing if the stop is done in mach3, at that point the computer is sending the signal. if the estop button is depressed on the machine it should be almost instant, and you computer load will not effect the estop.
I now have sold many of these x4+ mills, and have had them in stock for months. I have never encountered any estop malfunctions, as we test every one of our machines prior to sending them out.
my concern for the the fellow in the uk is; if the depth of cut is large and fast the amount of chatter that it is producing could damage the machine and the electronics.
As you can seen on the step down on the part in the photo, this is a large depth of cut and if done at the posted feed rate, you would be hard pressed to do that even on a large CNC mill.
As of current i am throughly impressed with the x4+, i personally own 2. these machines are a workhorse, but like any mill the depth of cut and feed are limited to the size and rigidity of the machine.
keith