Okay, so you bought a bag of fragrant single-origin beans in a trendy coffee shop, but forgot to grind them. What do you do? If you are [Jimmy DiResta], you cannot go to Wal-Mart to buy a grinder for $15. You talked to your tools and spent hours building grinders from the workshop stuff.

As long as we still have a way to heat the water, this hand grinder will be a great post-apocalyptic device. [Jimmy] Started using the old manual grinder for grinding metal, not beans.

After oiling it to run smoothly, he pulled out a few bevel gears and started work, installing one on the shaft of the grinder and the other on the business part of the old-fashioned industrial lamps.

We are sure that this will be a burr grinder, but we were a little disappointed to see [Jimmy] drilling a hole on a utility blade to make a blade grinder. Honestly, we were a little surprised that he did not process some burrs, but the results are still impressive and cute.

Since the customized cuff can hold the bulb, we like that the whole thing can be quickly disconnected from the grinder, we just hope [Jimmy] clean the bulb first. Have a drink of anything, and then watch the build video after the break.

Not exactly your kind of store? You can print the emergency coffee grinder at any time.

Yes, when I saw a helical gear, I also thought it was a burr grinder. A real barista will never use a shear grinder. But I agree that this is a cool hack...

Yes, I think so too. I like to see people working metal, but I definitely hope he has made a burr milling machine. I realized that it is not that simple (this is why the cost of the burr grinder is so high).

But regardless of this, this is a smart build.

Yes, I think (through a lot of attention to his work) he just aimed at something fascinating and interesting.

I realize this may be a one-off, this is a hacking site, and I am not a security sitter, but...really?

Stainless steel usually does not contain chromium, so only certain types of steel are suitable for food preparation? (Pay attention to the blade and screw hardware that may be in contact with the coffee). (304 steel has higher nickel to reduce oxidation and corrosion?)

Shouldn't the food preparation block be sanitized before the first use, or at least washed in the dishwasher before the first use?

Is brass food safe due to various reasons related to zinc?

Among all the adjectives at the beginning of the video, healthy, natural and fresh, do you really want to make it?

Abd Then he used to leave the key in the chuck...no, no, no.

And braze the gear to the nut, which will destroy the heat treatment on it...

When he turned the grinder, did you see how close his finger was to the rotating wheel without a cover? It must weigh 4-5 pounds and spin at 1,000 RPM? Absolutely take off your finger inertia and clamp it on the table a bit roughly.

(But it might be good for 1x to use video props.)

In contrast, food safety is a minor issue.

Regarding the question of leaving the key in the lathe chuck, I will echo. I have never seen a trajectory, but I can only imagine...

We have a.) Keychain with switch. The lathe cannot be turned on without the key. b.) The large grid between the machines is used to capture parts that leave the chuck at undesired moments.

Oh, there is another scene where D. uses a file, with his arm and cloth resting on the chuck. Never can. Even tight cloth. Never can.

I went to see a lathe sold by a man, he put the key in the chuck, opened the lathe, the key flew over my head.

Suspect that gear has any heat treatment. Those gears are only mild steel.

Ordinary cheap "vintage style" coffee grinders on AliExpress or Amazon will be made of zinc alloy castings or stainless steel. If it is the former, it may also contain trace amounts of lead.

To be fair, wooden utensils are not food safe either.

Do you think this is a tool for daily use? After the video is made, do you think coffee will be ground in this device? Do you think this video was made so that you can do it yourself? Do you think this video was made to attract customers to buy his coffee and soap?

Security babysitter, no. A "knows everything"...

Yes, stainless steel contains chromium, but unless you melt or evaporate it, it will not come out of solution. I just fast forward, but I don't see any stainless steel. The blade is usually high carbon steel.

I think I will wash it off to remove any oil I'm sure he made outside the camera. But what about sterilization? Do you disinfect everything in the kitchen before cooking? Soap and water are just fine.

Brass is food safe, and likewise, the elements usually do not dissolve out of the alloy.

"As long as we still have a way to heat the water, this hand grinder will be a great post-apocalyptic device."

You know that when you can’t heat water, it’s the end of the world.

Yes, if you are not sure how you will boil water after the end of the world, I am not sure if you should call yourself a hacker.

Many grocery stores have grinders that you can use.

I have a few of these old grinders and never thought of using them for any purpose other than grinding/sharpening. I had to put them away. My daughter likes to use them to make sparks, and it doesn’t matter what she grabs to make sparks (for example, antique hand-supported spiral drill bits).

Let me wonder if you can grind coffee in a ball mill filled with steel balls? Filter the results through the grid to catch the ball.

The light bulb was mentioned twice. It is a safe housing for incandescent bulbs. They seem very fashionable lately. Hipster bars and sports bars, as well as many other bars in the town, sprout them from the stalagmites on the walls or above. They are not friendly to LEDs due to the heat enclosed by the glass.

My daily job is a quarter dollar flea market luck. This is the iconic Kitchen Aid Art Deco design. The top is a large glass screw on the "bulb" with those classic straight and radial curves, and there is a screw on the top cover. The only "hacker" took it apart to clean and lubricate the motor, providing it with another half a century of service.

"Okay, so you bought a bag of single-origin beans that smelled good in a trendy coffee shop, but forgot to grind them." Huh? In a truly trendy coffee shop, letting them grind the coffee beans you just bought should get you into the necessary discussion about how quickly the aroma of freshly ground coffee dissipates, and you should always grind fresh coffee bean. So, in this case, the coffee shop is either just a typical imitation fashion place, or you *really* remember*be careful not* to ask them to grind beans...so they won’t grind your gears in the end.

For the French press, you only need a rough surface anyway, you can skip the grinder altogether and hit them with any decent blacksmith's hammer.

Ha ha. We can also put some beans in a bag and try a sports car! ! !

Reminds me of a power outage in the laboratory. We took coffee beans from an ordinary coffee machine, ground them with a pestle and mortar, and then used a Soxhlet extractor, a flask, a large fat cooler and a Bunsen burner to make coffee. You know, although it actually tastes bad, it is the best coffee I have ever had.

A note related to quality: The Ds concept does not provide repeatable results. Due to filling, turning speed and duration, everything will be random.

Real coffee fans know why we use slow cone grinders.

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