who reverse engineered the controller board of an IKEA Bekant motorized adjustable table. He added an Arduino board and four buttons to the controller, so that you can store two table positions and ...
The tabletop has 9.5mm holes drilled out for mounting to a matching BEKANT underframe. We ignore these, and instead drill 6.5mm holes, 13mm deep for: 8 mounting holes for the underframe, 4 mounting ...