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    <title>topic Lathe CAM lead in and lead out issues in Fusion Manufacture</title>
    <link>https://forums.autodesk.com/t5/fusion-manufacture/lathe-cam-lead-in-and-lead-out-issues/m-p/8950310#M66787</link>
    <description>&lt;P&gt;Hi y'all! I have an issue which I cannot seem to solve regardless how much I scratch my noggin. I'm trying to create something that is almost like a threading operation, but I'm not cutting a thread, but rather a helical groove using a form tool, and it needs to have a faded lead in and lead out. See the image below for the geometry I'm trying to achieve.&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;Now. I cannot get it done with a threading operation because the threading doesn't allow for form tools like I'm using, only tools with threading inserts. Even when I try it with a threading tool I can only fade the thread end, not the start, so the start ends up with a full circular groove before it starts the thread.&lt;BR /&gt;&lt;BR /&gt;The threading operation automatically clocks into the thread with every stepdown, making it possible to achieve rather deep threads using multiple passes. I was thinking I could possibly hack a profiling operation to do what I need, but I can't figure out how to get it to clock into the same groove on each pass. So either way I turn I'm stuck.&lt;BR /&gt;&lt;BR /&gt;So, you kings of Fusions, you princes of Autodesk, how would I get this done on my CNC lathe?&amp;nbsp;&lt;BR /&gt;&lt;BR /&gt;Many thanks!&lt;BR /&gt;&lt;BR /&gt;&lt;span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Capture.JPG" style="width: 846px;"&gt;&lt;img src="https://forums.autodesk.com/t5/image/serverpage/image-id/664365i317325C5735298EA/image-size/large?v=v2&amp;amp;px=999" role="button" title="Capture.JPG" alt="Capture.JPG" /&gt;&lt;/span&gt;&lt;/P&gt;&lt;P&gt;&lt;span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Capture2.JPG" style="width: 475px;"&gt;&lt;img src="https://forums.autodesk.com/t5/image/serverpage/image-id/664367iB65BB9486AF4ADC9/image-size/large?v=v2&amp;amp;px=999" role="button" title="Capture2.JPG" alt="Capture2.JPG" /&gt;&lt;/span&gt;&lt;/P&gt;</description>
    <pubDate>Tue, 06 Aug 2019 09:49:43 GMT</pubDate>
    <dc:creator>Anonymous</dc:creator>
    <dc:date>2019-08-06T09:49:43Z</dc:date>
    <item>
      <title>Lathe CAM lead in and lead out issues</title>
      <link>https://forums.autodesk.com/t5/fusion-manufacture/lathe-cam-lead-in-and-lead-out-issues/m-p/8950310#M66787</link>
      <description>&lt;P&gt;Hi y'all! I have an issue which I cannot seem to solve regardless how much I scratch my noggin. I'm trying to create something that is almost like a threading operation, but I'm not cutting a thread, but rather a helical groove using a form tool, and it needs to have a faded lead in and lead out. See the image below for the geometry I'm trying to achieve.&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;Now. I cannot get it done with a threading operation because the threading doesn't allow for form tools like I'm using, only tools with threading inserts. Even when I try it with a threading tool I can only fade the thread end, not the start, so the start ends up with a full circular groove before it starts the thread.&lt;BR /&gt;&lt;BR /&gt;The threading operation automatically clocks into the thread with every stepdown, making it possible to achieve rather deep threads using multiple passes. I was thinking I could possibly hack a profiling operation to do what I need, but I can't figure out how to get it to clock into the same groove on each pass. So either way I turn I'm stuck.&lt;BR /&gt;&lt;BR /&gt;So, you kings of Fusions, you princes of Autodesk, how would I get this done on my CNC lathe?&amp;nbsp;&lt;BR /&gt;&lt;BR /&gt;Many thanks!&lt;BR /&gt;&lt;BR /&gt;&lt;span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Capture.JPG" style="width: 846px;"&gt;&lt;img src="https://forums.autodesk.com/t5/image/serverpage/image-id/664365i317325C5735298EA/image-size/large?v=v2&amp;amp;px=999" role="button" title="Capture.JPG" alt="Capture.JPG" /&gt;&lt;/span&gt;&lt;/P&gt;&lt;P&gt;&lt;span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Capture2.JPG" style="width: 475px;"&gt;&lt;img src="https://forums.autodesk.com/t5/image/serverpage/image-id/664367iB65BB9486AF4ADC9/image-size/large?v=v2&amp;amp;px=999" role="button" title="Capture2.JPG" alt="Capture2.JPG" /&gt;&lt;/span&gt;&lt;/P&gt;</description>
      <pubDate>Tue, 06 Aug 2019 09:49:43 GMT</pubDate>
      <guid>https://forums.autodesk.com/t5/fusion-manufacture/lathe-cam-lead-in-and-lead-out-issues/m-p/8950310#M66787</guid>
      <dc:creator>Anonymous</dc:creator>
      <dc:date>2019-08-06T09:49:43Z</dc:date>
    </item>
    <item>
      <title>Re: Lathe CAM lead in and lead out issues</title>
      <link>https://forums.autodesk.com/t5/fusion-manufacture/lathe-cam-lead-in-and-lead-out-issues/m-p/8950696#M66791</link>
      <description>&lt;P&gt;I don't think what you are looking for is going to be possible in any of the turning operations. It "may" be possible to accomplish this in a Mill/Turn with a milling toolpath, but it's not going to give you what you are fully after.&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;"Fade Thread Start" isn't a threading requirement that I've ever encountered...&lt;/P&gt;</description>
      <pubDate>Tue, 06 Aug 2019 13:07:05 GMT</pubDate>
      <guid>https://forums.autodesk.com/t5/fusion-manufacture/lathe-cam-lead-in-and-lead-out-issues/m-p/8950696#M66791</guid>
      <dc:creator>seth.madore</dc:creator>
      <dc:date>2019-08-06T13:07:05Z</dc:date>
    </item>
    <item>
      <title>Re: Lathe CAM lead in and lead out issues</title>
      <link>https://forums.autodesk.com/t5/fusion-manufacture/lathe-cam-lead-in-and-lead-out-issues/m-p/8951148#M66799</link>
      <description>&lt;P&gt;That is what I feared. Though, I cannot see why it shouldn't be possible. If it can do a fade out it should be able to do a fade in. I'm looking at the G code and it's a very simple operation to do a threading with, let's say, five passes to make that thread. It's just the start that ends up with a full circular groove without a fade in. Could this perhaps be done manually with a bit of G code rewriting?&lt;/P&gt;</description>
      <pubDate>Tue, 06 Aug 2019 15:34:06 GMT</pubDate>
      <guid>https://forums.autodesk.com/t5/fusion-manufacture/lathe-cam-lead-in-and-lead-out-issues/m-p/8951148#M66799</guid>
      <dc:creator>Anonymous</dc:creator>
      <dc:date>2019-08-06T15:34:06Z</dc:date>
    </item>
    <item>
      <title>Re: Lathe CAM lead in and lead out issues</title>
      <link>https://forums.autodesk.com/t5/fusion-manufacture/lathe-cam-lead-in-and-lead-out-issues/m-p/8951263#M66800</link>
      <description>&lt;P&gt;Fade out is normally only used to finish threads where there is no shoulder relief. I you are threading middle of shaft for some purpose other then engaging mating part your option is manual programming.&lt;/P&gt;&lt;P&gt;Use G32 and strait infeed, repeat passes, only changing X values.&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;Something like that.&lt;/P&gt;&lt;P&gt;&lt;span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="2019-08-06 09_28_47-[] (C__Users_Owner_Desktop_WEIRD.nc).png" style="width: 999px;"&gt;&lt;img src="https://forums.autodesk.com/t5/image/serverpage/image-id/664502iFAE44231B5817F62/image-size/large?v=v2&amp;amp;px=999" role="button" title="2019-08-06 09_28_47-[] (C__Users_Owner_Desktop_WEIRD.nc).png" alt="2019-08-06 09_28_47-[] (C__Users_Owner_Desktop_WEIRD.nc).png" /&gt;&lt;/span&gt;&lt;/P&gt;</description>
      <pubDate>Tue, 06 Aug 2019 16:31:18 GMT</pubDate>
      <guid>https://forums.autodesk.com/t5/fusion-manufacture/lathe-cam-lead-in-and-lead-out-issues/m-p/8951263#M66800</guid>
      <dc:creator>Anonymous</dc:creator>
      <dc:date>2019-08-06T16:31:18Z</dc:date>
    </item>
    <item>
      <title>Re: Lathe CAM lead in and lead out issues</title>
      <link>https://forums.autodesk.com/t5/fusion-manufacture/lathe-cam-lead-in-and-lead-out-issues/m-p/8951315#M66801</link>
      <description>&lt;P&gt;On the other hand what you are showing on your model is not faded thread, it is spiral grove that can be done on mil-turn.&lt;/P&gt;&lt;P&gt;Rotary tool enters from Y plus direction, at Y0 position drive Z axis and rotate C axis, at the end of Z travel tool exits in Y minus direction.&lt;/P&gt;&lt;P&gt;Entry and exit also need to include Z axis move of calculated value to confirm to pitch of spiral groove.&lt;/P&gt;</description>
      <pubDate>Tue, 06 Aug 2019 17:12:37 GMT</pubDate>
      <guid>https://forums.autodesk.com/t5/fusion-manufacture/lathe-cam-lead-in-and-lead-out-issues/m-p/8951315#M66801</guid>
      <dc:creator>Anonymous</dc:creator>
      <dc:date>2019-08-06T17:12:37Z</dc:date>
    </item>
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