planet cnc usb controller touch plate cnc 2030t mk3/4

Yes, soft limits CAN prevent you hitting the wrong end, but that assumes that the machine was homed initially when the machine is powered on and that the positions are still safe to use. After hitting the limit switch the machine must be homed again, or zeroed at the right position, whichever you prefer, otherwise you will not be able to continue the job. Limit switches are for safety reason, so when the limit switch is hit you want the machine to stop as fast as possible and don't care about losing position. And to make things even clearer, the difference between hitting the home switch and hitting the limit switch is that when the machine hits the home switch (soft or hard, makes no difference here), it decelerates in a controlled manner and not losing position. In this case you can make the machine set the SOFT limits so when homed the machine knows where it is and thus should not crash at the other end.Yes.

Limit switches do not need to be accurate.īut it is possible to use a home switch as a limit switch combined. Limit switches and home switches are different things, homing switches need to be accurate and reliable.

On the other hand, I don't use home switch on my CNC at all, since I always start from zero on the material I work with and I set the zero each time I need to. I want my CNC to stop in a more controlled and less violent way so I have limit switches at both ends to prevent that. Now and then I make a mistake resulting in hitting the wrong end, and even with the weak NEMA17 motors it sounds pretty violent. On my 3D printer I only have home switches, and those work as limit switches for one end of the axis, but have no limit switches at the other. Personally I would not run a CNC without limit switches to prevent unintentional runaway. Thanks for help, i bought new module and software license, I'm new to CNC machines, I found that controller card supports limit switches but my machine does not have, I believe it can work without limit switches but i want to know how important it is to install limit switches, are they really helpful or something we can avoid.

Planet cnc usb controller touch plate cnc 2030t mk3/4