Has anyone thought about using ferrite to reduce / eliminate EMI for the limit/homing switches? EMI Ferrite CNC Active Filter USB Cable Size TDK (9mm Inner Diameter 20mm Long) | eBay They are available on digikey for a whole lot less than what it is being sold for on ebay.
Ferrites help filter high frequency EMI very succesfully. But a good RC filter as a first line defense is even better: Solving Endstop Woes with a Simple Analog Filter both together - can run withing half a meter away from my cheap junk plasma inverter with HF start (;
Peter, What about using proximity limiting sensors such as what is used on 3d printers? EZABL Kit - EZConnect V3.1 - TH3D Studio LLC Do you think this proximity switch would work with the black box or Xpro4?
Blackbox supports inductives natively, plug and play! Check the documentation docs.openbuilds.com/blackbox No need for a adapter kit as in that link! Expensive! We added the components onboard already (why they charge $70 for $3-6 sensor, and diode or two resistors, plug and 3d printed box (maybe another $0.60) baffles me. Faith in humanity lost lol. We added them onboard for you as its literally a few 0.01s lol
Thank you Peter! BTW are inductive sensors susceptible to emi interference like the mechanical endstops?
About the same, its the wires that act like antennas (; But the Blackbox filters basic EMI via an onboard RC filter (;
Well, about the same can be rephrased to, about the same as properly wired mechanicals... Depending on the type and config, inductives might be way better come to think if it.
