Maybe I’m missing something but I’ve done what I think he has using concentric circles with ordered cuts. The inner circle is the hole that’s cut and the outer circle is the countersink that’s engraved - high power low speed for the inner and lower power higher speed for the countersink. The countersink comes out perfect for a plug (like using a forstner bit) so not truly a countersink with sloping sides for a beveled screw head but it works the same (and if I have the depth I have done small plugs from the same material glued on top of the screw and then sanded flush. I suppose if one were patient enough and specified enough decreasing radius (radii?) circles and engraving power/speed steps you could get close to a sloped hole but not sure it’s worth it.
All of which goes to the lure of the technology - sometimes a countersink bit on a drill (even if the underlying holes were done by the laser for precision) might be the easiest & fastest technology to use but doing it via laser is cooler. Can’t tell you how embarrassing it is to cut sheet material to a size that fits into the laser and then spend time fiddling with getting the laser cut line correct to cut it down further…only to think about how much faster it would have been to just do the last cut on the same table saw that got it to the size that fit in the laser DAMHIK
I was thinking the same thing. He could just take a countersink bit and use the laser hole as the guide hole. I’ve used a CNC mill to do what you describe (since a CNC Mill and CNC Laser are the same thing, but laser vs. whirling blade) and made a sloping spiral down. Of course on a CNC mill you can tool change and put the countersink into the chuck and use the CNC to precisely locate the countersinks.
Some I did and some I didn’t, a lot of those are from estate sales and auction lots over the years.
I have a tool and cutter grinder, and I sharpen end mills and cutters for my horizontal mill, but getting the relief correctly ground into a countersink needs gear I don’t have (and/or skill I don’t have).
It is cheaper to just keep buying sort of sharp used ones.
Spot on! The first time you use a new one it’s used too so no reason not to get someone else’s lightly used ones far cheaper than a new one out of the box.
DAMHIK
