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<div class="moz-cite-prefix">Hi JP</div>
<div class="moz-cite-prefix"><br>
</div>
<div class="moz-cite-prefix">I would recommend two of these sensors
operated in linear mode, with a small difference in their physical
position and invert the signal from one of them.</div>
<div class="moz-cite-prefix">From these two signals you would get a
'detent' differential signal that would tell you the lateral error
and allow you to adjust the horizontal position of the paper more
accurately.</div>
<div class="moz-cite-prefix"><br>
</div>
<div class="moz-cite-prefix">Best wishes</div>
<div class="moz-cite-prefix"><br>
</div>
<div class="moz-cite-prefix">Gerry</div>
<div class="moz-cite-prefix"><br>
</div>
<div class="moz-cite-prefix">On 09/04/2023 16:09, Jean-Pierre
Desrochers wrote:<br>
</div>
<blockquote type="cite"
cite="mid:001201d96af5$57f97bc0$07ec7340$@oricom.ca">
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<p class="MsoNormal"><span style="mso-fareast-language:EN-US"
lang="EN-CA">Hi all again,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"
lang="EN-CA">I’m still trying to refine my design and
working on<br>
the paper centering process circuit.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"
lang="EN-CA">So far I’m using the tracker bar edge’s holes
to detect<br>
left/right paper movements while playing the rolls.<br>
Those who are at the paper’s edge sides. <br>
The system works pretty well <o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"
lang="EN-CA">but still some rolls lacks of centering
correction.<br>
SO I want to do some tests using Photointerrupters - Slot
Type – with open collector Outputs.<br>
Like those types:<br>
<img style="width:3.7291in;height:2.5416in"
id="Image_x0020_1"
src="cid:part1.Flxfls4p.rkYgYkDC@gmail.com" class=""
width="358" height="244"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"
lang="EN-CA"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"
lang="EN-CA">I’m trying to select the best accurate one to
detect <u>paper edges</u><br>
not the overall paper cutting the IR beam..<br>
Any idea of the best specifications to pick one ?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"
lang="EN-CA"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"
lang="EN-CA"><o:p> </o:p></span></p>
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<div style="border:none;border-top:solid #E1E1E1
1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal"><b><span lang="FR">De :</span></b><span
lang="FR"> Synth-diy
<a class="moz-txt-link-rfc2396E" href="mailto:synth-diy-bounces@synth-diy.org"><synth-diy-bounces@synth-diy.org></a> <b>De la part
de</b> Jean-Pierre Desrochers<br>
<b>Envoyé :</b> 23 février 2023 17:31<br>
<b>À :</b> <a class="moz-txt-link-abbreviated" href="mailto:Synth-diy@synth-diy.org">Synth-diy@synth-diy.org</a><br>
<b>Objet :</b> [sdiy] My Player piano roll project...
a small video demo for you..<br>
<b>Importance :</b> Faible<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"
lang="EN-CA">I’m not done yet with this project but this
is promissing..<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"
lang="EN-CA"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><a
href="https://www.youtube.com/watch?v=K7xXYqCB0AY"
moz-do-not-send="true" class="moz-txt-link-freetext">https://www.youtube.com/watch?v=K7xXYqCB0AY</a><o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"
lang="EN-CA">I let the piano roll play its song while
filming.. around 4:00 duration.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"
lang="EN-CA">Enjoy !<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"
lang="EN-CA"><o:p> </o:p></span></p>
</div>
</div>
<br>
<fieldset class="moz-mime-attachment-header"></fieldset>
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