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    <title>topic Re: grbl cnc z axis problem in Fusion Manufacture</title>
    <link>https://forums.autodesk.com/t5/fusion-manufacture/grbl-cnc-z-axis-problem/m-p/8027661#M47468</link>
    <description>&lt;P&gt;Try increasing the distances it backs of G28 is just a go home move, if the machine backs of 1 mm at homing the machine should stop 1 mm of the switch at a G28 call G53 is the other option but it does the same sort of thing go home.&lt;/P&gt;</description>
    <pubDate>Fri, 25 May 2018 21:38:14 GMT</pubDate>
    <dc:creator>daniel_lyall</dc:creator>
    <dc:date>2018-05-25T21:38:14Z</dc:date>
    <item>
      <title>grbl cnc z axis problem</title>
      <link>https://forums.autodesk.com/t5/fusion-manufacture/grbl-cnc-z-axis-problem/m-p/8024968#M47431</link>
      <description>&lt;P&gt;Hi, I have a really simple CAM job to bore out two holes - just started with CNC &amp;amp; CAM. My CNC router has min and max limit switches and I am homing each time I start the machine up. However, every single CAM program I create within Fusion 360 and then run via Chilipeppr to my CNC xpro V3, the spindle goes up and hits the Z max limit switch therefore putting the board into alert.&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;%&lt;BR /&gt;(1001)&lt;BR /&gt;(T1 D=3 CR=0 - ZMIN=10 - flat end mill)&lt;BR /&gt;G90 G94&lt;BR /&gt;G17&lt;BR /&gt;G21&lt;BR /&gt;G28 G91 Z0&lt;BR /&gt;G90&lt;/P&gt;&lt;P&gt;(Bore1)&lt;BR /&gt;M9&lt;BR /&gt;T1 M6&lt;BR /&gt;S5000 M3&lt;BR /&gt;G54&lt;BR /&gt;M9&lt;BR /&gt;G0 X2.25 Y-0.3&lt;BR /&gt;Z20&lt;BR /&gt;G1 Z18.3 F1000&lt;BR /&gt;G18 G2 X2.55 Z18 I0.3&lt;BR /&gt;G1 X2.7&lt;BR /&gt;G17 G3 X3 Y0 J0.3&lt;BR /&gt;X-3 Z17.5 I-3&lt;BR /&gt;X3 Z17 I3&lt;BR /&gt;X-3 Z16.5 I-3&lt;BR /&gt;X3 Z16 I3&lt;BR /&gt;X-3 Z15.5 I-3&lt;BR /&gt;X3 Z15 I3&lt;BR /&gt;X-3 Z14.5 I-3&lt;BR /&gt;X3 Z14 I3&lt;BR /&gt;X-3 Z13.5 I-3&lt;BR /&gt;X3 Z13 I3&lt;BR /&gt;X-3 Z12.5 I-3&lt;BR /&gt;X3 Z12 I3&lt;BR /&gt;X-3 Z11.5 I-3&lt;BR /&gt;X3 Z11 I3&lt;BR /&gt;X-3 Z10.5 I-3&lt;BR /&gt;X3 Z10 I3&lt;BR /&gt;X-3 I-3&lt;BR /&gt;X3 I3&lt;BR /&gt;X2.7 Y0.3 I-0.3&lt;BR /&gt;G1 X2.55&lt;BR /&gt;G18 G3 X2.25 Z10.3 K0.3&lt;BR /&gt;G0 Z20&lt;BR /&gt;X262.25 Y-0.3&lt;BR /&gt;G1 Z18.3 F1000&lt;BR /&gt;G2 X262.55 Z18 I0.3&lt;BR /&gt;G1 X262.7&lt;BR /&gt;G17 G3 X263 Y0 J0.3&lt;BR /&gt;X257 Z17.5 I-3&lt;BR /&gt;X263 Z17 I3&lt;BR /&gt;X257 Z16.5 I-3&lt;BR /&gt;X263 Z16 I3&lt;BR /&gt;X257 Z15.5 I-3&lt;BR /&gt;X263 Z15 I3&lt;BR /&gt;X257 Z14.5 I-3&lt;BR /&gt;X263 Z14 I3&lt;BR /&gt;X257 Z13.5 I-3&lt;BR /&gt;X263 Z13 I3&lt;BR /&gt;X257 Z12.5 I-3&lt;BR /&gt;X263 Z12 I3&lt;BR /&gt;X257 Z11.5 I-3&lt;BR /&gt;X263 Z11 I3&lt;BR /&gt;X257 Z10.5 I-3&lt;BR /&gt;X263 Z10 I3&lt;BR /&gt;X257 I-3&lt;BR /&gt;X263 I3&lt;BR /&gt;X262.7 Y0.3 I-0.3&lt;BR /&gt;G1 X262.55&lt;BR /&gt;G18 G3 X262.25 Z10.3 K0.3&lt;BR /&gt;G0 Z20&lt;BR /&gt;G17&lt;BR /&gt;M9&lt;BR /&gt;G28 G91 Z0&lt;BR /&gt;G28 X0 Y0&lt;BR /&gt;M30&lt;BR /&gt;%&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;I have no idea what is going on and need some help! &lt;img class="lia-deferred-image lia-image-emoji" src="https://forums.autodesk.com/html/@D5D66E11BC96A1C8427F98151D3E9A7A/emoticons/1f642.png" alt=":slightly_smiling_face:" title=":slightly_smiling_face:" /&gt;&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;Thanks.&lt;/P&gt;</description>
      <pubDate>Thu, 24 May 2018 20:12:04 GMT</pubDate>
      <guid>https://forums.autodesk.com/t5/fusion-manufacture/grbl-cnc-z-axis-problem/m-p/8024968#M47431</guid>
      <dc:creator>peter</dc:creator>
      <dc:date>2018-05-24T20:12:04Z</dc:date>
    </item>
    <item>
      <title>Re: grbl cnc z axis problem</title>
      <link>https://forums.autodesk.com/t5/fusion-manufacture/grbl-cnc-z-axis-problem/m-p/8025493#M47440</link>
      <description>&lt;P&gt;Does the program have a homing offset as in it hits the switch then backs off a set distances.&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;G28.1 or G28.2 is a setting you can hard set to a goto position.&amp;nbsp;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;It's nothing you or fusion is doing wrong it's just a small change needs to be made.&lt;/P&gt;</description>
      <pubDate>Fri, 25 May 2018 02:00:28 GMT</pubDate>
      <guid>https://forums.autodesk.com/t5/fusion-manufacture/grbl-cnc-z-axis-problem/m-p/8025493#M47440</guid>
      <dc:creator>daniel_lyall</dc:creator>
      <dc:date>2018-05-25T02:00:28Z</dc:date>
    </item>
    <item>
      <title>Re: grbl cnc z axis problem</title>
      <link>https://forums.autodesk.com/t5/fusion-manufacture/grbl-cnc-z-axis-problem/m-p/8026012#M47444</link>
      <description>&lt;P&gt;Yes, the controller is programmed to back off the limit switches by about 1mm after homing.&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;Do I need to make a change within Fusion 360 to take this into account?&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;Thanks.&lt;/P&gt;</description>
      <pubDate>Fri, 25 May 2018 09:00:31 GMT</pubDate>
      <guid>https://forums.autodesk.com/t5/fusion-manufacture/grbl-cnc-z-axis-problem/m-p/8026012#M47444</guid>
      <dc:creator>peter</dc:creator>
      <dc:date>2018-05-25T09:00:31Z</dc:date>
    </item>
    <item>
      <title>Re: grbl cnc z axis problem</title>
      <link>https://forums.autodesk.com/t5/fusion-manufacture/grbl-cnc-z-axis-problem/m-p/8027661#M47468</link>
      <description>&lt;P&gt;Try increasing the distances it backs of G28 is just a go home move, if the machine backs of 1 mm at homing the machine should stop 1 mm of the switch at a G28 call G53 is the other option but it does the same sort of thing go home.&lt;/P&gt;</description>
      <pubDate>Fri, 25 May 2018 21:38:14 GMT</pubDate>
      <guid>https://forums.autodesk.com/t5/fusion-manufacture/grbl-cnc-z-axis-problem/m-p/8027661#M47468</guid>
      <dc:creator>daniel_lyall</dc:creator>
      <dc:date>2018-05-25T21:38:14Z</dc:date>
    </item>
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