In my spare time I like to build wooden benches and other furniture from tree trunks. In order to be able to cut the tree trunks into planks, I built this sawmill. I used a Stihl MS 660 chainsaw with a 125cm bar.

Step 1: Cut Material

first I cut all the steel parts with the band saw.

Total length 4000mm

Total width 1000mm

Step 2: Weld the Base Frame

I welded with the inert gas welding machine. It is important to ensure that everything is welded at a 90 degree angle.

Step 3: Weld on Rails

So that the carriage runs in a precise line with the chainsaw, I welded angle steel 30mm x 30mm x 5mm to the outer edge of the base frame.

Step 4: Weld the Trolleys Together

The carriage for the saw consists of 40mm x 40mm x 3mm square tube. The carriage is 1000mm high. Tree trunks with a diameter of 950mm can be sawn in this way.

I welded a 90 degree angle into the upper corners for reinforcement.

On the right and left are two square tubes of 300mm welded on top and bottom, on which the height adjustment will later be mounted.

Step 5: Paint

After priming, I painted the lower base frame in anthracite. The top carriage in green.

Step 6: Mount Castors

The rollers are located in the middle of the lower square tube. Due to their 5mm recess, they run exactly in the rail on the base frame

Step 7: Height Adjustment

The height adjustment works via two threaded rods and a chain.

A threaded rod is fastened in two bearing blocks on the right and left. The mount for the saw is attached below. Two gears are attached at the top. these are connected with a chain. If you now turn the crank on the threaded rod, the chainsaw moves upwards on both sides at the same time. So you can adjust the height steplessly. This can be determined with a cotter pin on the chain tensioner.

Step 8: Result

Here you can see the finished result. Unfortunately, I don't have any pictures of the test sawing. But I'll make some soon when I cut open tree trunks again