For quite some time, I had been considering the idea of creating tire tread patterns using a laser. It would also be great if the laser could cut the wheel contours as well. My first laser was a 5-watt model, suitable only for engraving, so I needed a more powerful one; I ended up getting a 40-watt Longer laser. With this unit, I can easily cut profiles into oak up to about 15mm thick. I also purchased a rotary attachment to handle the laser work on the outer surface (the tread). Working this way is a learning process, and once I’ve gained a bit more experience, I hope to create a "how-to" guide. Below are some photos of the process.
The wheels were supposed to have a finished diameter of 70 mm, but due to the final machining on the wood lathe, the actual diameter ended up being 68.5 mm. In short, next time I need to start with a slightly larger diameter.
Used wood for the tyres is Oak and the rim is made out of Beech.
The tyre, 70x40x11mm (half of the tyre and a little oversized) after it is cut on the laser.
Now that it has been fitted with a profile,
glued together.
Mounted on the lathe, and turned concentrically.
Another view.
After turned concentrically, with 3 mm machined off the sides and a rounded corner. The same operation is then performed on the other side. For the sake of completeness, here is a photo of the rim,
and the rotation unit as used for laser processing of the outer diameter.
I think it will be a while before I start a blog, because I still need to gain a lot of experience.
Great application to save some work! (but it looks like it takes much more than just the laser to complete a wheel)
You are absolutely right, but what I’m mainly interested in is creating the tyre tread pattern. The fact that I can also easily laser-cut circles is a nice bonus.
If you are after black rims, you can leave the centers laser-charred (deep etch) and punch holes for the studs/axle. The tire tread is a freebie as it gives you that worn rubber effect, but as your work shows you are after the rounded surface which makes for a great added visual impact
That laser sure adds to the degree of woodworking that you can to. I only have a 20W unit and no turntable. I can appreciate all the work you can do with the 40W machine!!!!!!!!!!
Cheers, Jim ........................ Variety is the spice of life...............Learn something new every day