have a workbee 750 mm x 750 mm routing cnc putting two limit switches on all axis but the blackbox controller only has 3 ports for x,y,z limit switches need help in wiring all 6 limit switches
Wire them in parallel: 1) use Xtension Limit Switch Kit 2) connect SIG on BlackBox to SIG on first switch to SIG on second switch 3) connect GND on BlackBox to GND on first switch to GND on second switch 4) connect V+ on BlackBox to V+on first switch to V+on second switch If you don't want to use the easy to wire Xtensions (highly recommended, easiest option for beginners) , then refer to gnea/grbl for the advanced way with regular switches
so are you saying to put the wires for x-axis all together from both switches to the plug that plugs into the blockbox ?
Or "daisy chain" them - as @Peter Van Der Walt said they need to be wired in parallel - so on each axis sig connected together, Plus together and ground together. You can either go from each switch to the blackbox or blackbox - switch one - switch two. Whatever is most convenient from a wiring point of view. Alex.
so what I did is from 1 switch of set of wires, I join together with the other switch wires, when u press down on 1 of the switches the led lites up on both I HOPE THATS RIGHT ALSO WHEN i get ready to home the switches what command do I use thank you very much 4 all the great info
Correct, as they share a signal wire. Grbl only has 3 limit input pins. Read gnea/grbl Read ALL the pages on that Wiki, its a goldmine of info! (menu on the right)
I wired my switches with 2 per axis and wired them in parallel. When I home the machine it does the proper move and rebound. However when I move manually to a limit the machine hits the limit and shuts down with no rebound. Why doesn’t it rebound?
The homing cycle is a series of operations - high speed search to locate the homing switch - slow speed move to locate it more accurately - pull off from the switch to make sure it is no longer activated - set the machine co-ordinate system zero. When you jog towards the same switch it acts as a limit switch - when activated it sends a signal to your controller to say a crash has occurred and shut everything down to prevent damage. Two different functions. Alex.
set the machine co-ordinate system zero not sure what that means ? the machine will show me when its activated ? for just 1 switch, then do the other switch? then I can go back and check it to see that it work ? ,using openbuiltd control, have limit switches on all axis, also do I have to put in a code to do this homing ?very very new to this cnc stuff have read alot and watch alot vids
set the machine co-ordinate system zero not sure what that means ? the machine will show me when its activated ? for just 1 switch, then do the other switch? then I can go back and check it to see that it work ? ,using openbuiltd control, have limit switches on all axis, also do I have to put in a code to do this homing ?very very new to this cnc stuff have read alot and watch alot vids
V1.0.211 will be out by the end of the day, to address the transfer button issue, for now, use the Save Gcode button. You can use Open GCODE in control to open gcode from any CAM
Watch the video, it explains it nicely That might just confuse you more: Random info is useless. targeted info is better. Refer to the OpenBuilds Youtube channel instead
