This new Page is dedicated to my homemade MIDI pedalboard

It's a BDO concave pedalboard with 30 parallels key (c - f)



I. Plans

The plans were made by computer following the BDO dimensions


II. Construction of the pedalboard

The pedalboard is fully made in oak, except for the sharps in mahogany


a ) the keys

Two widths : one for the natural keys and one for sharps


Each piece is then cutted in two parts


router jig for machining the rear as natural keys


The arc shape is printed and glued to another jig.


The jigt under the router will rotate on the axis of the arc




the arc jig is carried over to the final jig that will be used to machine all natural keys


Final jig


First natural key


Detail of arc shape


drill to round the top of keys


rounded keys


The natural keys are finally cut to final length


The sharps is made in two parts




Each sharp has a different length


The front is cut with an angle of 15 ° and the top rounded


Jig to make mortise with the router




The sharp is assembled to the key with two dominos


Testing the key layout




Key mounting plate





b ) The frame

wood for the frame


Jig for the sides


The shape is first cut coarsely


Final form performed using the jig


Jig for cutting joints


cutting ...


Cutting joints on the sides parts




Joints on the front element




Detail of the assembly


Assembly of rear parts


jig for rear elements




Arc jig


Block where the keys will be fixed, coarse cut


Arc cutting using the jig


Machining the top of the block (here the block is returned)


Final form of the block


Jig for cutting keys slots


Keys slots


Placement test frame before gluing






The frame is then fully sanded






Details of the slots, we can see the holes springs below


Rear c over




Rear view of the front element. We can see that the holes springs ares greater on this side









Pedalboard finished





III. Midification

The midification is easy. A MIDI board transforms the sensor signals located front of each key to MIDI signal.

The MIDI signal is then sent to the keyboard or computer

I used Hall effect sensors. They allow to have no physical contact between the keys and the sensor.
A small magnet is simply stuck on each key. When you press a key, the magnet is placed facing the sensor. It sends information to the interface.



MIDI Board

The electronic elements are arranged in a box to be fixed on the front part of the pedal


The MIDI interface and RibbonTail connected to the 30 sensors




Overview. We can see that the sensors position follows the curve of the keys


MIDI connector and power connector


Installation behind the pedalboard


The box is simply clipped into the springs holes


box installed




The 9 jigs I used


The 4 drills I used