Chris TickTock | 29/07/2020 20:27:18 |
622 forum posts 46 photos | Hi Guys, My issue has been to understand which edges on common metal tahe cutters are the edges that due the cutting (shearing) and those that would therewfore need sharpening. Can anyone poiunt to a good explanation of say a right hand cutter? Chris |
JasonB | 29/07/2020 20:39:06 |
![]() 25215 forum posts 3105 photos 1 articles | Your best bet would be to put a R/H cutter in the toolpost and watch what edge does the work as you cut, it will be the one contacting the work and doing the cutting. As an example I have marked the cutting edge on this R/H tool in green You can see it doing the cutting here, bit too heavy a cut for your Sherline but it does show the whole edge working. |
pgk pgk | 29/07/2020 20:45:44 |
2661 forum posts 294 photos | In the geometry of the tool being held below the possible cutting edges are the side, the angled front and the corner between. The actual edges used to cut are between those faces and the top. However you really only need to sharpen the side and front and corner reliefs since that slicks up those edges with perhaps a little stoning of the top face to remove burs. pgk |
Chris TickTock | 29/07/2020 21:11:13 |
622 forum posts 46 photos | Posted by pgk pgk on 29/07/2020 20:45:44:
In the geometry of the tool being held below the possible cutting edges are the side, the angled front and the corner between. The actual edges used to cut are between those faces and the top. However you really only need to sharpen the side and front and corner reliefs since that slicks up those edges with perhaps a little stoning of the top face to remove burs. pgk Wonderful video..thanks
Chris |
larry phelan 1 | 30/07/2020 19:12:57 |
1346 forum posts 15 photos | You could do worse than look up Sparey,s book, still good after 80? years. He does [did ] explain this in simple terms [even I could understand it ] |
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