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    <title>topic Re: Optimize Scallop for good surface finish for foundry pattern tooling in Fusion Manufacture</title>
    <link>https://forums.autodesk.com/t5/fusion-manufacture/optimize-scallop-for-good-surface-finish-for-foundry-pattern/m-p/7311168#M35786</link>
    <description>&lt;P&gt;You totally want to target your 3D operations. Selections, touch/avoid are going to be your friends. I'll try to get into your file later today, but that's the advice I'd give. Don't look at any one tool as a complete solution.&lt;/P&gt;</description>
    <pubDate>Fri, 18 Aug 2017 14:13:36 GMT</pubDate>
    <dc:creator>LibertyMachine</dc:creator>
    <dc:date>2017-08-18T14:13:36Z</dc:date>
    <item>
      <title>Optimize Scallop for good surface finish for foundry pattern tooling</title>
      <link>https://forums.autodesk.com/t5/fusion-manufacture/optimize-scallop-for-good-surface-finish-for-foundry-pattern/m-p/7311162#M35784</link>
      <description>&lt;P&gt;Can anyone give suggestions on the best way to optimize a finish scallop operation (see attached example file) for good surface finishes?&lt;/P&gt;&lt;P&gt;I know the tool &amp;amp; die, investment tooling pattern makers, etc. must have some tricks to reduce the cycle time and still give some great surface finishes.&lt;/P&gt;&lt;P&gt;Using a bull nose with a 0.015-0.025 step over to give some good scallops on vertical walls that require draft angle, it&amp;nbsp;seems that the scallop operation doesn't recognize when there is a large flat area so it takes along time to get those area's machined with that small step over.&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;Do you typically use the contour or only select the vertical walls for the scallop operation to speed it up?&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;Does anyone have any advice?&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;TIA,&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;Nate&lt;/P&gt;</description>
      <pubDate>Fri, 18 Aug 2017 14:11:22 GMT</pubDate>
      <guid>https://forums.autodesk.com/t5/fusion-manufacture/optimize-scallop-for-good-surface-finish-for-foundry-pattern/m-p/7311162#M35784</guid>
      <dc:creator>natemclain</dc:creator>
      <dc:date>2017-08-18T14:11:22Z</dc:date>
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    <item>
      <title>Re: Optimize Scallop for good surface finish for foundry pattern tooling</title>
      <link>https://forums.autodesk.com/t5/fusion-manufacture/optimize-scallop-for-good-surface-finish-for-foundry-pattern/m-p/7311168#M35786</link>
      <description>&lt;P&gt;You totally want to target your 3D operations. Selections, touch/avoid are going to be your friends. I'll try to get into your file later today, but that's the advice I'd give. Don't look at any one tool as a complete solution.&lt;/P&gt;</description>
      <pubDate>Fri, 18 Aug 2017 14:13:36 GMT</pubDate>
      <guid>https://forums.autodesk.com/t5/fusion-manufacture/optimize-scallop-for-good-surface-finish-for-foundry-pattern/m-p/7311168#M35786</guid>
      <dc:creator>LibertyMachine</dc:creator>
      <dc:date>2017-08-18T14:13:36Z</dc:date>
    </item>
    <item>
      <title>Re: Optimize Scallop for good surface finish for foundry pattern tooling</title>
      <link>https://forums.autodesk.com/t5/fusion-manufacture/optimize-scallop-for-good-surface-finish-for-foundry-pattern/m-p/7311604#M35796</link>
      <description>&lt;P&gt;What is your pattern material? Wood, butter board, aluminum?&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;The first foundry pattern I made the foundryman &amp;nbsp;laughed at how polished it was. Most short run patterns are wood. Sanded and painted is usually good enough. One time I had a pattern maker convert one of my patterns to urethane for better durability... he covered the whole pattern in tape, made a plaster mold, and cast the urethane from that. Looks every bit as good as the original.&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;I normally do my drafts using tapered end mills so I can finish the walls in one or two passes.&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;In your case contain your wall finishing and use a separate operation to finish the flat with a larger step over. Something like this.&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;&lt;span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="scallop4.png" style="width: 705px;"&gt;&lt;img src="https://forums.autodesk.com/t5/image/serverpage/image-id/391582i7032B8ECF5A97D26/image-size/large?v=v2&amp;amp;px=999" role="button" title="scallop4.png" alt="scallop4.png" /&gt;&lt;/span&gt;&lt;span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="scallop3.png" style="width: 705px;"&gt;&lt;img src="https://forums.autodesk.com/t5/image/serverpage/image-id/391581i22532C2032F3A5CA/image-size/large?v=v2&amp;amp;px=999" role="button" title="scallop3.png" alt="scallop3.png" /&gt;&lt;/span&gt;&lt;/P&gt;</description>
      <pubDate>Fri, 18 Aug 2017 16:12:12 GMT</pubDate>
      <guid>https://forums.autodesk.com/t5/fusion-manufacture/optimize-scallop-for-good-surface-finish-for-foundry-pattern/m-p/7311604#M35796</guid>
      <dc:creator>randyT9V9C</dc:creator>
      <dc:date>2017-08-18T16:12:12Z</dc:date>
    </item>
    <item>
      <title>Re: Optimize Scallop for good surface finish for foundry pattern tooling</title>
      <link>https://forums.autodesk.com/t5/fusion-manufacture/optimize-scallop-for-good-surface-finish-for-foundry-pattern/m-p/7313042#M35823</link>
      <description>&lt;P&gt;Material is Pattern Plank (red board).&lt;/P&gt;&lt;P&gt;This is the durable, heavy tooling plank. Wears allot like aluminum from my experience.&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;I see how you used the boundary to prevent machining the large flat area with a small scallop step over. Good tip.&lt;/P&gt;&lt;P&gt;I suppose you can just go back and machine the large flat with an appropriate tool and step over to get it machined efficiently.&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;And you are correct, most foundries don't "require" the tooling to be polished. It's a point of pride for myself and something that I was taught to do when producing tooling.&lt;/P&gt;&lt;P&gt;The casting will only be as good as the pattern tooling.&lt;/P&gt;&lt;P&gt;But you are correct, most foundries don't worry about polishing the surface of the pattern &amp;amp; core box.&lt;/P&gt;&lt;P&gt;With 3D printed sand molds you would be surprised with the amount of surface finish. Some are fairly coarse. In the case of a machined sand mold (Southern Cast Products - Jonesboro) the surface finish of the mold is fairly rough and it still seems to produce a good casting finish once it has been shot blast &amp;amp; machined. &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;Thank you for the tips, I will keep playing around with it and see how much time we can shave off the program.&lt;/P&gt;&lt;P&gt;Since most pattern tooling programs are used 1 time it makes it harder to spend allot of time dialing in the program so you usually try to find the low hanging fruit for optimization.&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;Again, thank you.&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;Nate&lt;/P&gt;</description>
      <pubDate>Sat, 19 Aug 2017 12:07:32 GMT</pubDate>
      <guid>https://forums.autodesk.com/t5/fusion-manufacture/optimize-scallop-for-good-surface-finish-for-foundry-pattern/m-p/7313042#M35823</guid>
      <dc:creator>natemclain</dc:creator>
      <dc:date>2017-08-19T12:07:32Z</dc:date>
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