This would be a tedious job if done manually thus we decided to use the power of laser-cutting. The following list are several parts that were laser-cut for the air hockey game.
The file attached below contains the 2d drawings of all the parts for laser-cutting. Playfield, white 2mm. I strongly recommend you to do the latter. Not everyone has the time to develop their 3D design skills, and many just want to print fun models with their limited spare time. Many free 3D software modeling tools take tens of hours to master, and the 3D printer models themselves can take a long time to design, too.
One of the largest free STL file sites in the world, Thingiverse was first set up by 3D printer company Makerbot back in so users could upload their 3D printer model designs for the world to download and print. The repository how hosts an incredible range of STL files that you can download for free, with no registering necessary. Not only can you download these free 3D printer models, but you are encouraged to post your prints and edits and remixes. Owned by Autodesk, Instructables is a free STL file and general project building site that encourages designers to post step-by-step instructions on how to assemble and build these intriguing projects.
With a full range of projects, not just for 3D printing but involving electronics and other projects also, Instructables focuses on the educational aspect. This is great for gaining experience and confidence in 3D design and printing, and general engineering and DIY skills.
Instructables is also great for families looking to build a fun project together while teaching their children about engineering, and assembling something from parts. GrabCAD is a general 3D file hosting site, catering to not only 3D printing fans, but anyone with an interest in engineering or 3D modeling. The site includes files for parts of 3D printers for building and modifying open source 3D printers , as well as sophisticated engine designs for planes and other large feats of engineering, as well as cars, and appliances.
This should be more than enough for all your basic metalworking clean-up needs. For the class project we will be making a teleidoscope which is like a kaleidoscope, but with a spherical lens on the end instead of beads. It can easily be converted to a kaleidoscope by inserting a clear canister filled with small objects in the end instead of a crystal ball lens. Should you want to also have the option to use it as a kaleidoscope, I recommend buying the 5 gram plastic jars listed as optional below.
Metal stock tends to come in sheets, bars, rods, and tubes. Depending on the form factor of the metal stock you are using determines the type of tools and processes used to work with it. For instance, thin sheet metal requires a very different set of tools to cut, shaped and bend it than square tubing. That said, the general principles we discuss in this class remain roughly consistent.
The most common types of metal you will encounter while doing metalworking are steel, stainless steel and aluminum. Steel is an alloy of iron and carbon. Alloys are combinations of pure elemental metals that when combined together create metals with new and different properties.
In the case of steel, adding carbon to the iron creates more strength. Steel is typically ferromagnetic, meaning magnets can stick to it, and it can be magnetized. Carbon steel also oxidizes rusts and needs to be treated to prevent this from happening. It is considered a harder metal, and usually falls somewhere between stainless steel and aluminum.
The steel stock you will most encounter will be low carbon mild steel. It will also be hot or cold rolled, but you can learn much more about that in the welding class. Stainless steel is a steel alloy with chromium added in. The addition of chromium enables the steel to resist oxidation in most situations, thus preventing tarnish and rust. Stainless steel is typically not ferromagnetic as a general rule, but certain types sometimes are. In addition, stainless steel is typically less brittle than steel, but it ultimately depends on the different steel and stainless steel alloys that are being compared.
Aluminum is an elemental metal and has the symbol Al on the periodic table. Aluminum typically oxidizes very little and does not rust. However, you may see aluminum tarnish a little as it corrodes. Aluminum is not ferromagnetic. The nice thing about aluminum is that it is a soft malleable metal and is easy to machine. However, it is a little more expensive than steel, easier to dent, and more difficult to weld.
You may also encounter brass, and copper. Brass is a yellowish metal alloy made of copper and zinc. It is a soft metal and is typically softer than aluminum. Brass oxidizes by tarnishing, much in the same way a piece of fine silver might. In other words, it loses its luster and gets darker. Step-by-step We make it easy to learn how to make anything, one step at a time. Made By You Instructables are created by you. A Happy Place Making things makes people happy.
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