Sussertown Posted April 18, 2018 Report Share Posted April 18, 2018 I watched Mike Spagnuolo's video on the flattening sled. I bought the Freud router bit 1 3/4 inch and proceeded to flatten a workbench top made of fir 2x4s and glued with edges up. there were no nails or screws and only a couple minor knots. At the end of routing a maximum of perhaps 1/16 to 1/8 inches of wood the corners of the bit looked worn. I called Freud who is standing behind the bit but they seem to have no idea why it would be worn. Quote Link to comment Share on other sites More sharing options...
Pondhockey Posted April 18, 2018 Report Share Posted April 18, 2018 Have you tried cleaning the bit? Quote Link to comment Share on other sites More sharing options...
Mick S Posted April 18, 2018 Report Share Posted April 18, 2018 What was your rotation speed? Quote Link to comment Share on other sites More sharing options...
Catco Posted April 18, 2018 Report Share Posted April 18, 2018 I think it has to do with the feeds and speeds. Finding that delicate balance between material removal and speed of movement is tough and takes practice. And it changes with every bit. Also cleaning it would probably help. This is one of the carbide inserts on my fly cutter I have at work after making a short pass flattening up some birch. See the top right corner how it's black and white? It's a buildup of tar/pitch/sap whatever you want to call it. Quote Link to comment Share on other sites More sharing options...
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