If you didn’t stick to the 100% accurate blueprint, and you made your own teeth for the shredder, how did you do so, how much did it cost, and can it be cheaper?
it depends on what tools you have available, but the most basic would be to print out a template and glue it to the steel and cut it out with an angle grinder with a cut off disk and a sanding disk to clean it up. if you have access to a belt sander it is even faster to do it. some cleanup could be required with a file. good luck, and feel free to ask any questions if necessary
An angle grinder with a thin cut-off wheel is great for straight cuts in thick steel. But not so good for complicated shapes, and it would not be possible to cut the hexagonal hole with this method as it’s too small even for a worn-down disc. Also it’s not very pleasant to use an angle grinder for hours on end.
A method I have used in the past to cut curves and complex shapes, is to draw the outline on the steel, then use a bench drill to drill lots of small holes around the edge (you can use a hand drill but it’s much slower). Then just break away the excess or use a hacksaw to join the dots. You will still have some cleanup to do, but if you drill carefully a file is all you need to take it to the lines. Note that with stainless you won’t get through it with a regular drill, even a carbide one will chip and break after a number of holes.
@ashrak it would definitely require some skill, but cutting the straight parts with a cutoff wheel and grinding the rounder parts with a flap wheel would definitely be doable, especially if you have some lines to follow
Hello @masontomko !
As @clementhempel wrote, cutting the blades with an angle grinder is probably the cheapest way, but there is some work into it. Cutting these amount of 5-6mm steel is somewhat hard and takes some times, I was thinking on doing it, but then I joined the group order, because the price and time.
Still, when I have completed some projects (machines) and got more time on my hands I will try to cut the blade with an angle grinder.
@clementhempel did you successfully do that?