Comments sought on new build: A CNC Router for RC Gliders and Planes

[njhussey]

Barry, im going to have the cables from the steppers coming in to the control cabinet and earth them to the star point and the cables from the drivers are also earthed at the star point. They connect via the din terminals. I'm also contemplating having a junction box on the machine and wiring to that and then the motors etc....

[Clive S]

Barry, im going to have the cables from the steppers coming in to the control cabinet and earth them to the star point and the cables from the drivers are also earthed at the star point. They connect via the din terminals. I'm also contemplating having a junction box on the machine and wiring to that and then the motors etc....

I think you are fine with the earthing effectively earthed part way down the cable as long as you don't make a loop ie earth both ends. I don't think it is a good idea with the junction box on the router in my humble opinion what is the point in chopping a perfectly good cable and then putting a join in it. ..Clive

[njhussey]

what is the point in chopping a perfectly good cable and then putting a join in it. ..Clive

Well to start with the router will be floor mounted until I make the frame for it to live in vertically (at the rate I'm going that'll be months...)....so I was thinking to save having cables longer than I need dangling everywhere until it's finally sited I'd have a JB and when it's in its final position adjust the cables to suit....

[Clive S]

Well to start with the router will be floor mounted until I make the frame for it to live in vertically (at the rate I'm going that'll be months...)....so I was thinking to save having cables longer than I need dangling everywhere until it's finally sited I'd have a JB and when it's in its final position adjust the cables to suit....

Ah I now remember you are going to mount it vertical. But you will still have to have the continuity of the screens in the JB. ..Clive