Good point. Then you could reset the position count to zero after each index
since it's 'homed' each time. Each tool position should be the same amount of
steps away or at least close enough.
> Date: Wed, 17 Sep 2008 21:54:06 -0400
> From: [EMAIL PROTECTED]
> To: emc-users@lists.sourceforge.net
> Subject: Re: [Emc-users] Turret Toolchange
>
> Chris Morley wrote:
>
> > You could have classicladder send position commands to a stepgen. How
> > did mach3 handle the missed steps? Could you put an encoder on the
> > stepper motor?
>
> You don't need an encoder, but you do need a way of "homing". There are
> 8 turret positions, so they're 45 degrees apart. Let's say you need to
> move 5 degrees backwards to be guaranteed that the thing is seated
> properly. All you do is go forward 45 degrees (plus a little so you're
> sure to be past the next tool stop), then back 5. Actually, it's
> forward "a few", forward 45*num_tools_to_skip, back 5.
>
> You essentially have homing on every pocket because the lock prevents
> the motor from moving the turret past "home" every time.
>
> - Steve
>
>
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