Paul Grundbacher's Bandsaw
This article also available in German.
Many years ago I built a bandsaw to cut firewood for my fireplace.
I welded the frame together out of metal tubing and water pipes.
I turned the wheels from 19 mm particleboard. I also turned the holes for
the ball bearings. The ball bearings are on 20 mm non-rotating axles.
The upper wheel is vertically adjusted with an 8 mm threaded rod.
A spring adjusts the blade tension. This spring was previously part of
a ski binding :) .
I can adjust the tracking by slightly tilting the upper wheel.
The blade guides consist of a wooden wheel to take up the thrust. It gets
thinner over time, so it needs to be moved forward from time to time. But it lasts for years.
The lower wheel consists of 4 layers glued together. The V-belt runs
on one of the layers. The motor has a V-belt pulley.
I originally ran the saw blade directly on the particle board. After
several years I glued a strip from a bicycle inner tube onto the wheels.
Later I added the enclosure and the stand, with sawdust box.
The side blade guides consist of two engine intake valves from a car.
I added the rip fence last. Part of a wooden folding meter stick serves as a scale.
More unique bandsaws not based on this one
Daniel Pagel's plywood bandsaw
a design from Popular Mechanics in 1974
More of Paul's machines
More about reader projects
on my woodworking website.