Draw two lines through the center by gon (a line should be perpendicular to the other) and connect the points of their intersection with the circle. Get a square. Then divide it by two vertical opposite side into 8 pieces, the other two - in 2 parts. After this draw vertical line through the last 2 points. This line will be carried out combined with a vertical diameter at the butt-end transfer of the logs.
Connect the line side, divided into 8 parts. One pattern is obtained with the parties 6 / 8 and 4 / 8, the other - from 6 / 8 and 2 / 8. Attach the plywood templates obtained. Cut them and make small cuts in places where there was a vertical line. For convenience, number the templates. Marking the cutting of logs first template attach to the end of the logs right in the middle. Try to combine cuts with drawn by the vertical diameter. Then circle the template outline. Sawing logs Once you raschertite ends, proceed to processing logs. First you need to trim the sides of the length of two feet. And it must be protesat side logs the request into the log. Raschertite the rest of the 'legs' on the resulting log protesannyh sidewalls. In logs with an average diameter of less than 22 cm squares of the parties divide by 12, rather than into 8 pieces. Then connect them in such a way as to produce a pattern: one from the 8 / 12 and 4 / 12, and the other from 6 / 12 and 4 / 12. Make a cut 'paws' in the extreme upper and lower crowns only from the adjoining neighboring crowns. In order to get an accurate landing 'legs', do podtesyvanie bed logs to the top of the underlying timber. Simply make flat pritesyvanie timber instead of a semicircular groove. Width protesannoy bed logs must be equal to its radius. In this case, your frame will be tight.