What is the formula for the size of a bench with four legs and eight legs?

The formula for calculating the size of a four-legged and eight-legged bench is as follows: firstly, draw four holes on the bench surface according to the slope of 1.2 times the thickness of the bench surface, and punch holes obliquely to both sides according to each hole; Then draw lines and punch holes on the stool legs according to the required height; The next part is the beam on the bench leg. Measure the distance between the eyes under the bench surface. Add 2 points to the height between the bench surface and the leg eye, and then add them to the length of the beam on the bench leg.

Calculation of inclination of four-corner octupole stool

Don't worry about the four corners, just pay attention to the angle between the eight forks and the desktop. This angle is related to the length and placement of the octupole, and the appropriate angle is 30 degrees to 45 degrees or 60 degrees. For the calculation of 45 degrees, just cut a square from the diagonal. For the calculation of 30 degrees and 60 degrees, the length of the fork is twice as long as the short side, thus forming a right triangle of 30 degrees and 60 degrees.

On a small bench, the limbs are tilted. It's what carpenters often say-eight limbs tied. The slope is 1 to 20. If the function is used, it is: tanA= 1/20.