the desk wobble was not the legs

My desk started wobbling side to side whenever I typed. I tightened every leg bolt, put felt pads under the feet, nothing changed.

Turns out the problem was the frame under the top. The cross rail is held by two small screws into chipboard and both holes were worn out, so the whole frame could rack a few mm.

Fix:

• filled the old holes with wood glue + toothpicks, let it dry overnight
• re-drilled pilot holes slightly offset
• added two steel corner brackets (the cheap L shaped ones) between rail and legs

Total cost maybe 4 euros. Desk is solid now. Should have looked underneath first instead of blaming the legs for a week.