For all joiners, fitting joints and bolts takes up 80% of the time spent in making a piece of work. Those who have not gone through strong foundation training will have difficulty achieving any breakthrough; beginners can only yearn for precision and efficiency. With the invention of the Universal Copy Woodworking Machine, we have completely changed the way woodworking is done, allowing users to pick up the skill easily. DSIN Machinery  mortise and tenon floating tenon half-blind dovetail joint  dsin  wood woodworking multi-function joinery machine compound angled mortise & tenon joinery machine copy precisely rout diy diywoodtooling compound angles chairs zig-zag chair compound-angle cylindrical legs chair position indicator introduction x and y axes laser calibration DIY workshops skill workshops double tenon  app made in taiwan dsin dsinwood angled through dovetail joint, half-blind angled dovetail joint, round tenon angled tenon  Compound-angle dovetails joint cylindrical tenons Compound cylindrical tenons through dovetail half-blind dovetail sliding dovetail butterfly spline tenon compound tenon bevel dovetails bevel halh-blind dovetails box joint decorative joints