This is part two of two parts about SmartJointer – an easy-to-assemble CNC box („finger“) jointer controlled by SmartMini.
Please click here for part one.
This Instructable converts SmartJointer for fully automatic operation.
SmartJointer is a an easy-to-assemble CNC box („finger“) jointer controlled by SmartMini. No PC or mains power supply is required to operate SmartJointer in the workshop.
Part one showed how to make the version of SmartJointer which is manually pushed/pulled over the saw blade to make each cut.
The video shows the automatic version which is the subject of this Instructable – it cuts box joints while you have a cup of tea and a biscuit.
Some statistics and advice
Maximum timber width: 200mm (8″) – but easy to scale up SmartJointer for more.
Maximum timber thickness: 18mm – but easy to scale up the softwood support pieces for more.
Time to cut one set of pins/tails: multiply timber width by 0.75. E.g. 60mm width = 45 seconds per set.
Number of pieces cut in one pass: up to 4 – depends on timber thickness.
Always use a backer. I hate tear-out!