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Author Topic: 4th axis continuous movment  (Read 1127 times)

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Offline dude1

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4th axis continuous movment
« on: November 05, 2017, 01:14:17 AM »
Does anyone know of a way to get the A axis to just spin at a set speed and be controlled from Mach3 for on and off and setting the speed. I know just connecting it up to a stepper driver with a arduino it can be done, It's for a non technical person on the other side of the planet from me.

He wants to knock 30 mins of a tool path. doing a traces op in fusion 360 along the X then stepping in closer in the Y axis it will work, if I can get a simple way to get the A axis to just spin.
Re: 4th axis continuous movment
« Reply #1 on: November 05, 2017, 01:47:43 AM »
Hi dude1,
how about disconnecting the regular spindle.  Then set up for a Setp/Dir spindle but hook it to the A axis driver instead. The wherever Mach sees a M3 or
a S2500 it would be acting on the A axis....if you don't tell Mach you're cheating I wont tell either!

Craig
My wife left with my best friend...
     and I miss him!

Offline dude1

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Re: 4th axis continuous movment
« Reply #2 on: November 05, 2017, 01:51:18 AM »
The spindle is getting used as well, I am not sure if he has spindle control I will have to ask he's running a router if he has no spindle control that should work.
Re: 4th axis continuous movment
« Reply #3 on: November 05, 2017, 01:59:18 AM »
Hi dude1,
even if the main spindle were for the duration arranged for manual control that would leave the Spindle Step/Dir free.

In Mach4 you can have up to six Out-of-Band motors...easy!

Craig
My wife left with my best friend...
     and I miss him!

Offline dude1

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Re: 4th axis continuous movment
« Reply #4 on: November 05, 2017, 02:03:50 AM »
He's useing M3, hopefully he has no spindle control I will see what he says he may just have to spend a couple of hundred dollars and get a stepper driver and a arduino to do it, if fusion had continuous this would not be a problem, its all angled surfaces so wrapping is out.