ADILS Stabilizer Brackets

These are clamp-on brackets for IKEA ADILS legs (or other 40mm tube legs) with holes to allow you to attach some planks or a piece of plywood across the legs, hopefully making them more stable and less wobbly. To be candid, I have tried these, but before I finished installation gave up and stiffened my desk through other means. These may work as intended if installed fully, but I have not tried it.

The brackets need to be slipped onto the legs either before installation or from the bottom by lifting the table. Clamping is provided by an M3 bolt (suggested at least 12mm) and a square M3 nut (DIN 562, same as used in the Prusa MK3) inserted into the slot on the top of the bracket. There is a hole under the nut pocket to allow you to push them back out should the need arise.

Once the brackets are attached to the legs (I'd suggest at least two per leg) the wood can be screwed onto them using regular wood screws through the 3mm holes. MAKE SURE THE LEGS ARE ALL PARALLEL OR THE MOUNTS ARE IN THEIR FINAL POSITIONS BEFORE YOU SCREW ON THE BOARDS. This was the reason mine gave me trouble, if the legs are not parallel and you attach the boards then try to slide them into place, the brackets will deform or break. For pieces in the corner I'd suggest having the ends of the wood pieces overlap, and adding some additional screws connecting the two pieces of wood to each other. This should provide a little more strength.

Any wood should work, the wider it is the more stable the desk will end up being. Thicker pieces should also be more stable, though it could get pretty heavy quick. For wider pieces (like pieces of plywood) you should probably use 3-4 brackets per leg. Up to your discretion.

Printed fine using PLA at 0.2 layer height, with 20% infill. Any plastic should work, but tolerances are a little tight, so keep that in mind.