During the construction of a house or a bath of logs, it is best to make a deaf groove so that logs are tightly adjacent. This design will be more reliable. First of all, the lowest log is prepared. Bitches are removed from it, any irregularities, the log should be perfectly even and smooth. Now it is necessary to make a longitudinal incision in the place where the fasteners will be located, this is necessary for the initial fixing.
Now you need to put the log in the groove, you need to make it so that it lay down horizontally, then draw a gap on both sides of the logs with a special circuit. Now with clearly drawn lines, turn the upper log and fix it to facilitate the work with it. According to the available marks, a groove is made in any way available to you. It can be an ax, a hacksaw, chainsaw or a grinder. The resulting groove should be the shape of an English letter V, try to ensure that the sides of the groove are not pointed, they can break under the weight of all logs.
Check the groove for evenness, if this is not the first time, draw out the existing bumps with a pencil, turn the tree over and finalize the groove to the desired size. After the log goes exactly into the groove, remove it and prepare the groove of the lower logs, put so many paclies in it so that it goes beyond the edges, and lay the previous log on top. Taping from above a wooden hammer so that the log is good and comfortable to the groove.
