A couple of hand power drills with bits, a dremel-type tool with bits, and a bench vise would be high on my list. With only $400 to spend Harbor Freight, garage sales, and Craig’s List are you friends.
We use the belt sander to smooth every cut - remove sharp edges - even some rounding over, etc. If steel axles get burrs or marks they can be easily sanded away.
The jigsaw is great for rough cuts. We always take one with us to competition. We have a nice Bosch saw at our main build site - but I bought a cheap one at Harbor Freight that works great too.
Yes like Terry said the belt sander is used to smooth out pretty much every cut we make in the lab. We actually have 4 of them in our lab (purchased before I came to the team.) They also allow you to sand things to close to exact measurements. When you don’t have a mill or a lathe, a caliper/ruler and sander can get you sort of close. It’s much easier than hand filling everything. We used them make all of our spacers last year.
A few other tools I would recommend
a pair of sheet metal snipsfor cutting thing aluminum and plastic. We use 09 Aluminum and 1/16" lexan and the shears cut through both very easily, often faster than taking something to a band saw.
An arbor press, for inserting/extracting bearings, pinions, broaching keyways. If you have a broach, We just bought this set from Enco. It will let you put 1/8" keyways in different items.
You could find a mini-mill on craigslist in that vicinity, but it will need some elbow grease to get it running and you’ll have to wait for the right one to show up because there are lot more garbage mill/drills than decent ones. If you have a drill press I think a tabletop lathe is more useful and you can definitely get a decent tabletop lathe for $400 on Craigslist. I would stay away from precision tools from HF – when buying new you generally get what you pay for.
When you buy new power tools this late you should plan on the set up and training time. Our team has for years tried to have all new tools working by Dec 1.
How much raw materials does a frc team need during a regular build season? (For example, amount of money, which materials are needed, and how to get them?)
We spoke with a local metal salvage company who told us that they periodically are asked to “clean up” materials from bankrupt companies, and thus have brand new raw material (aluminum, steel, etc.) to dispose of. They offered to donate anything they have that we can use. Perhaps you can find a situation like that.
well it depends on what capabilities you have for cutting aluminum for the thickness. for are team we usually buy some 1*1 aluminum box along with some sheets of varying thicknesses of aluminum.
I suggest you talk to a local company and see what they have. Our first two years we built with wood without even knowing that we had a local company that extruded aluminum for shipping across the world.