У вашего броузера проблема в совместимости с HTML5
This one is better than previous one. It has supported guide rods and zero backlash ball screws. I am using hobbycnc 4 axis driver board. The motors are 2X200Oz for X axis, 305Oz for Y axis and another 200Oz stepper for Z axis. So far works great and the test cuts are better than those of my previous machine.