mach3 BOB spindel direction

[Vik]

Hello
I have the a BOB for mach 3. In the manual there is nothing about the spindel direction. It is a 5 axis board. I need just 4 (X,Y,Z,A). Is it possible to use a pin for the 5 axis?

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[john-100]

unless you add another relay to the breakout board

for example
this is a dual relay that you could add ,



the 2 relay board could be controlled by the "step" or "direction"
outputs from an axis not being used to control a stepper motor

alternatively a single add on relay could be controlled by pin 16

the breakout boards onboard relay only provides on/off control of the spindle
the analogue 0 to 10V DC output being used for speed control



what type of spindle speed control do you need to control ???

most VFD manuals show how they can be controlled by 2 switches -
one for forward and another for reverse
the switches can be replaced by two relays for CNC control



John

[joeavaerage]

Hi,
do you have any left-hand cutting tools?

When I started I thought I needed a bi-directional spindle but then never used it. I do have three lefthand drills for trying to get out broken bolts and things
but I never use them in the mill.

Craig

[Vik]

Thanks a lot John. I have a syil with a smoked spindel controler. I don't get any spare parts from syil. I have a infranor servo controler and servor motor. That runs with a signal cc aud cl. For the speed I need 0-10V. The BOB is ok for that. I was not shure if I could use a output of a axis which I do not use.