Interesting build. If you have the parts, could be worth doing. Myself, I think you can buy one of these for $10.
https://www.instructables.com/DIY-MISTFOG-MAKER-USING-IC-555/
Interesting build. If you have the parts, could be worth doing. Myself, I think you can buy one of these for $10.
https://www.instructables.com/DIY-MISTFOG-MAKER-USING-IC-555/
Using some bearings, nuts, and a really thick threaded rod. Pretty simple build, but it must have taken forever to cut the slot in the rod. I think I would have bought something instead of doing all that for the slot.
https://www.instructables.com/Of-Ordinary-Bolts-Homemade-for-Sharpening-Blades-a/

With the covid counts going up, this stuff has been crossing my mind a bit more. THis is a pretty simple build if you can get the airbag to use to inflate lungs. Its amazing how simple the technology overall is.

Why? Cause you can. This is one of those crazy builds you come across once in a while. They author used it to make some drink at one point, then apple sauce….

The author basically mounts a PC fan to a car phone mount. Which it nice since it can be angled. I like the wood frame too with the LED on/off light.
https://www.instructables.com/Powerful-Fume-Extractor-on-Articulating-Arm/
The one I have from the store you have to push up and down to get it started, this one is a nice simple squeeze build.
https://www.homemadetools.net/forum/how-make-siphon-pump-your-home-81439?homelistings#post166250
This sled has multiple options to it (the video only shows one new one). I like this guys build. Puts my homemade sled to shame.
Nice an fancy looking build for cross cuts with a circular saw. I have debated building one of these myself. Not so sure I would go this fancy for a build thought.
Nice build (and cheap too) to add in a knife bit to a soldering iron.
Interesting build. I am not completely sure what the smaller coils are for, but I could see re purposing this build for coils for a generator.