I've never handled a MP3 so...
Most of the MP3 probes listed on eBay include a CAT40 or CAT50 taper. Is this 
easily removable? If removable what is the native shank for a MP3?

> -----Original Message-----
> From: hubert [mailto:h...@hbahr.org]
> Sent: Monday, September 19, 2016 7:57 PM
> To: Enhanced Machine Controller (EMC)
> Subject: Re: [Emc-users] snagged touch probe on eBay - anybody know how to
> interface ?
>
> Hi All
>
> This thread and it's follow on triggered my interest, so I just snagged a
> Renishaw MP3 probe on Ebay and now face the task of interfacing this to my
> New CNC mill which I am due to pickup later this week.  I ordered the mill 
> with
> LinuxCNC using the Mesa cards to interface to the computer.  The mill uses
> Servo's on X,Y,Z.  It is a small mill with a 12 position tool changer, thus 
> I am
> hoping to put the probe in one of the pockets and use it to sense work-piece
> position, and also to digitize.
> While this is my Hobby mill I am hoping to get close to 100micro inches
> repeatability.  I would appreciate any pointers to available data for
> building/buying a relatively inexpensive transmitter receiver for this 
> purpose.
>
>
> On 9/8/16 11:07 AM, Jon Elson wrote:
> > On 09/08/2016 09:56 AM, Florian Rist wrote:
> >> Hi Jon
> >>
> >>> Yes, I thought about building a receiver out of various parts, but
> >>> there are application specific parts that combine all this in one
> >>> unit.  Most are made with 38 KHz band pass filters for VCR remote
> >>> controls,
> >> Yes, that's why I didn't even look into theses integrated devices.
> >>
> >>> but the QSE159 does not
> >>> have the BPF, looked to be sensitive enough, and was really cheap
> >>> ($1.06)
> >> Indeed, interesting.
> >>
> >> Not sure if it is sensitive enough, 0.25 mW/cm² worst case translates
> >> to 2.5W/m², that's quite a lot. But, now that I started looking,
> >> there are quite a few similar integrated devices available, some with
> >> much high sensitivity down to at least 10µW/cm². However most are
> >> lacking the Schmitt-trigger of the QSE159, nice part, that you found,
> >> I'm going to get one, too.
> >>
> >>
> > I have no idea what the radiated power of the Blum probe is, but it
> > has 12 big surface-mount LEDs arranged around the periphery.  The QSE
> > sensor picks it up very well out past 6", which is all the sensitivity
> > I will need.
> >
> > Jon
> >
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