hi!..or better....HELP!.. I have a problem with z axis when its running at higher feed than 2 ipm! It happens that every time that z axis should finish moving up or down,the x or y movement starts before z finished its work,so result is that edges r cut off when z was going up,or edge is not 90 degrees but rounded when z was suppose to go down and stop so x or y would continue...
i made a 3D model,just a simple wall,0.1 inch high and 0.1 inch thick,and i made g-code for that in artcam..so the tool coming from left approached the wall,stopped,went up,but before it reached 0.1inch in z ,the tool started to move horizontal so it cut the edge(made it rounded)..than tool continued as it should over the wall and it stopped as it should,than it started to move down 0.1inch but again before it reached the end,the tool started to move to right(z still doing its job-so it produced curved edge again).this was happening at feed rate-8ipm and plunge rate-4ipm.it dosnt happen at 2ipm.
Than i rewrote those 5 moves of g-code and i loaded them using TEACH mode in mach3,adding 4ipm feed for horizontal and 4ipm for vertical moves as in original g-code. Now for my supp there was no rounded edges ,the z axis would finish its job before x axis started to spin.
anyone have idea whats going on?what can i do to achieve sharp edges at high feeds ?why its different result when i make g-code and load it using teach mode?