https://forums.autodesk.com/t5/fusion-manufacture-forum/reverse-countersink-in-blind-slot/m-p/13787023#M171024 <P>Simply sketch this on the midplane of your feature, then use a Pattern function to repeat it.</P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="programming2C78B_0-1756386307171.png" style="width: 400px;"><img src="https://forums.autodesk.com/t5/image/serverpage/image-id/1565597i8334C43CA7A20A27/image-size/medium?v=v2&amp;px=400" role="button" title="programming2C78B_0-1756386307171.png" alt="programming2C78B_0-1756386307171.png" /></span></P><P>&nbsp;</P> Thu, 28 Aug 2025 13:05:09 GMT programming2C78B 2025-08-28T13:05:09Z https://forums.autodesk.com/t5/fusion-manufacture-forum/reverse-countersink-in-blind-slot/m-p/13786573#M171013 <P>Im new to Fusion and Im struggling to programme a reverse countersink in to a blind 'keyhole' slot.</P><P>i want to feed the cutter in at the large end of the key, move along and create the countersink by raising the cutter, then drop down and move back to large end to exit slot.</P><P>Help would be nice please</P> Thu, 28 Aug 2025 09:23:09 GMT https://forums.autodesk.com/t5/fusion-manufacture-forum/reverse-countersink-in-blind-slot/m-p/13786573#M171013 MFZTM6E 2025-08-28T09:23:09Z https://forums.autodesk.com/t5/fusion-manufacture-forum/reverse-countersink-in-blind-slot/m-p/13786654#M171014 <P>Can you share a sample file that has this feature?</P> <P>&nbsp;</P> <P>I suspect it's going to be challenging to program. We might be able to accomplish this with the Trace toolpath, but that's only a guess...</P> Thu, 28 Aug 2025 10:26:35 GMT https://forums.autodesk.com/t5/fusion-manufacture-forum/reverse-countersink-in-blind-slot/m-p/13786654#M171014 seth.madore 2025-08-28T10:26:35Z https://forums.autodesk.com/t5/fusion-manufacture-forum/reverse-countersink-in-blind-slot/m-p/13786716#M171018 <P>If you mean an underside chamfer (countersink implies its a round feature) then Trace is the only way. Been there!</P> Thu, 28 Aug 2025 11:14:37 GMT https://forums.autodesk.com/t5/fusion-manufacture-forum/reverse-countersink-in-blind-slot/m-p/13786716#M171018 programming2C78B 2025-08-28T11:14:37Z https://forums.autodesk.com/t5/fusion-manufacture-forum/reverse-countersink-in-blind-slot/m-p/13786951#M171022 <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="MFZTM6E_0-1756384114822.png" style="width: 400px;"><img src="https://forums.autodesk.com/t5/image/serverpage/image-id/1565569iDC0FA24F3EC19270/image-size/medium?v=v2&amp;px=400" role="button" title="MFZTM6E_0-1756384114822.png" alt="MFZTM6E_0-1756384114822.png" /></span></P><P>the feature highlighted as under the key slot is a round countersink, the slot is a blind slot.</P><P>got a feeling im going to have to manually prog it?</P><P>&nbsp;</P> Thu, 28 Aug 2025 12:29:38 GMT https://forums.autodesk.com/t5/fusion-manufacture-forum/reverse-countersink-in-blind-slot/m-p/13786951#M171022 MFZTM6E 2025-08-28T12:29:38Z https://forums.autodesk.com/t5/fusion-manufacture-forum/reverse-countersink-in-blind-slot/m-p/13787023#M171024 <P>Simply sketch this on the midplane of your feature, then use a Pattern function to repeat it.</P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="programming2C78B_0-1756386307171.png" style="width: 400px;"><img src="https://forums.autodesk.com/t5/image/serverpage/image-id/1565597i8334C43CA7A20A27/image-size/medium?v=v2&amp;px=400" role="button" title="programming2C78B_0-1756386307171.png" alt="programming2C78B_0-1756386307171.png" /></span></P><P>&nbsp;</P> Thu, 28 Aug 2025 13:05:09 GMT https://forums.autodesk.com/t5/fusion-manufacture-forum/reverse-countersink-in-blind-slot/m-p/13787023#M171024 programming2C78B 2025-08-28T13:05:09Z