We have a small motorhome. Other owners are mounting solar panels to their roofs using 3M double sided tape. I’m sure there is a double sided tape that would hold the weight of our controllers against gravity. Look for 3M VHB (Very High Bond) tape. Your biggest problem would be getting it apart when needed. Let us know of your solution.
i unscrewed the screws on the top plate of the yoke. I then got a strong piece of wood, drilled holes to match, and attached to the yoke surface. This piece of wood was larger than the yoke and simply drilled holes on the ends and back and attached under desk. Holds firmly. Gorilla tape, velco and industrial double-sided tape were simply too weak for the force of the yoke’s movements.
I used 1 x 8 clear pine wood and stained it the same color as my desk.
Inner box dimension = 11 1/4 width X 3 3/4 height fasten or clamp to underside of desk
because I didn’t like the clamps sticking up above the desktop height.