Knapp Joint with CNC

[WillAdams (William Adams (Carbide 3D))]

It was the first machined joint — easily drawn up and machined as finger joints or dovetails are on a machine with a suitable fixture.

See:

Fixture for cutting vertical joints

for details on usage see:

CNC Box (Finger) Joint Box

Working up a tutorial on this for the wiki: but is now at: First step is to create the box itself: This is done in OpenSCAD using the parameters: length = 6; width = 3; height = 4; thickness = 0.375; bottomlidthickness=0.125; pins=13; partspacing=2; Next resolve the pin/joint size and spacing: [cnc_box_fingerjoint] Next step is to work out how to get from the above parameters to a file which may be easily cut using Carbide Create — probably using METAPOST.