Anyone working with metal should be aware of these two tools. They make finishing metal a smoother experience. I prefer these two attachments over composite disks, belt sanders, or orbital sanders.
I learned about them as a construction worker while prepping process pipe for welds on oil refineries. Both tools are standards in the steam fitting trade. I’ve since used them on robot creations, blacksmith projects, and anywhere else metal is involved.
Flap disks are more forgiving than standard composite grinding disks. (Use grinding disks and stones to grind, but use the flap attachments to finish.) Flap disks allow the user to treat a work piece like a sculptor. There’s a sense of touch and shaping involved. Less likely to gouge while still smoothing at a fast rate.
The flapper wheel has similar qualities but gets inside tight spots and is excellent on irregular surfaces. Attach it to an end grinder, drill, or set one up on a bench grinder.
Here are before-and-after photos of a railroad spike knife that was ground with a flap-disk. (Actually it is the un-ground side of the knife vs. the ground side). Doing this took less than 2 minutes. -- Aaron Nipper
Flap Wheels and Flap Disks: Around $10
If only I still had hair.
In this week’s Cool Tools Show podcast, Kevin Kelly and I interviewed Nick Bilton. Nick is a Special Correspondent for Vanity Fair and author of three books, including Hatching Twitter and his latest, American Kingpin, which chronicles the rise and fall of the Silk Road and the Dread Pirate Roberts. Here’s a bit from the […]
My colleague at Institute for the Future, Eri Gentry, is the guest on the Cool Tools Show this week. Eri is the founding president of BioCurious, the first hackerspace for biology. She is also co-founder of the emotional wellbeing site, My Happy Tools. Subscribe to the Cool Tools Show on iTunes | RSS | Transcript | Download MP3 | See all the Cool […]
Although flagship smartphones are unlikely to adopt heavy-duty outer casing anytime soon, you can always prepare your device for the outdoors with a beefy case and and an external battery like this Nomad Tile Trackable PowerPack, available in the Boing Boing Store for $119.95.The Nomad Tile can fully recharge an iPhone 7 over three times […]
Even though credit cards now feature an EMV chip for securing transactions, they still have to include the magnetic strip for compatibility with older point of sale systems. Because of this, there’s no way for the chip’s new security capabilities to protect against card skimmers in the wild.How do you protect yourself from legacy-technology-induced fraud? […]
As the old saying goes, “You should sit in meditation for 30 minutes every day. Unless you are too busy, in which case you should meditate for an hour.” Since most of us have an endless list of things to do and people to see, carving out quiet time can feel impossible, especially when most […]