Yesterday I 3D printed this secret box to insert a gift for my granddaughter birthday. I was wandering how I could do it on my CNC with hardwood. I think the only way is to have some special cutter. Any suggestion?
You could do this with a dovetail bit easily enough. Just need to plan your paths so all your plunges and retracts are outside your piece.
The angles won’t be as steep, but other than that would work the same way.
The secret of the impossible dovetail is they are at an angle. So make multiple tool paths. Cut the widest part of the female dovetail with a flat end mill to remove the majority of the waste. Then make the dovetail cut at full depth with a longer tool path than the actual size of the dovetail. You want to plunge in outside of the cut and retract outside of the cut. I think the project is doable but will take some planning and consideration. You might want to use the painters tape and superglue workholding so clamps are not in the way. I have an L bracket I use to set up the material so it is square with the cutter, put the tape and super glue down and then remove the L bracket.
Do the same thing for the male part of the dovetail, remove the majority of the material with a flat end mill and make a full depth cut with the dovetail bit.
You cannot make incremental cuts with the dovetail like a pocket but you can move the dovetail bit over at full depth and then make incremental cuts at full depth till your dovetail is completely formed.
Will, for this kind of project I would use Fusion360.
Guy, I would use a similar process too but dovetail router bit have a quite different angle, 7 to 14 degrees angle, much different than this model. With google, I found some similar wooden boxes all with the same angle and they are at low prices. They must use some jigs on the table saws?
Nick, thanks for this video, interesting! Wandering if the change in humidity thru seasons will affect the operation. Would not think doing those kind of work by hands, not enough skills and patience!