For those of you with a 3D printer you can make one of these coasters from the tight little script (with my first use of a loop) in the description of the video on YouTube.
This started off as a project to pour two pa...
2020-05-30 17:49:57 +0000 UTC View Post
My brother Ralfy's old electric shower failed with a bang and lots of water spraying everywhere.
Let's take it to bits.
2020-05-29 23:25:14 +0000 UTC View Post
I'll be joining the HVAC (Heating, Ventilation and Air Conditioning) guys on the HVAC Overtime channel for a live stream if all goes to plan.
https://www.youtube.com/watch?v=-n8djZiXkzY
If you're in HVAC or just want to hang out th...
2020-05-28 23:02:58 +0000 UTC View Post
Going live on Saturday evening.
2020-05-28 03:32:42 +0000 UTC View Post
The Radio Hams are NOT going to be pleased when they see the circuitry.
I'm not sure that big common mode suppression choke is going to be able to deal with the cheapness of the high voltage circuitry.
There are...
2020-05-26 21:36:02 +0000 UTC View Post
The idea of having a tiny washing machine agitator for a sink or bucket might be appealing for those who travel. But it's not really a great thing for bear sized clothing.
It's also not very waterproof, so I'm n...
2020-05-23 14:51:14 +0000 UTC View Post
The ozone generating tube in this video is interesting. Very simple and traditional construction.
The power supply is a bit rough. It feels a bit retro, like an Oudin coil from the early days of quack medi...
2020-05-22 19:21:17 +0000 UTC View PostSome time ago the European union decided that Europe based Patreon supporters would be charged VAT (Value Added Tax) on their contribution.
Now the American government is about to apply the same state-based sales tax to American Patreons. Depending on where you live you may or may not be taxed according to w...
2020-05-22 03:41:43 +0000 UTC View Post
I've been experimenting with using solder paste without a stencil. I think the next step might be to get a stencil....
https://www.youtube.com/watch?v=X4d-Nk955JE
This is a version of my Gallium PCB, which is just a matrix of...
2020-05-21 03:38:22 +0000 UTC View Post
I got a small batch of PCBs made by JLC (Not a sponsor).
Literally 6 days from placing the order to receiving the PCBs. That must be the fastest yet.
The video where I have another more successful go at reflow soldering is just uploading right now.
I'll also be testing these for manual soldering, altho...
2020-05-20 23:54:10 +0000 UTC View Post
Here's the link to this Saturday's live stream.
Nice catchy URL.
2020-05-20 23:50:50 +0000 UTC View Post
This video will be Patreon and selected friends only, as it's just a progress video and has me slightly perplexed.
https://www.youtube.com/watch?v=lfyyyRHV1e8
Sharp's marketing claims these units split water into positive hydrogen ...
2020-05-20 04:13:30 +0000 UTC View Post
It's a while since I've taken a plumbing component to bits, so here's a lockable outdoor tap / faucet with an interesting ceramic water gating insert.
The ceramic inserts seem very common these days. I think thi...
2020-05-18 16:07:57 +0000 UTC View Post
One of the perils of cheap prototype PCBs is that you can make inappropriate ones.
I've just ordered a very small batch of five of the above circuit boards.
There will definitely be a build video when they arrive.
2020-05-18 04:12:40 +0000 UTC View Post
There's something just a little bit suspicious about this high profile air cleaning system. Lots of marketing hype and "molecular science" that could only be proven by a very skilled lab with a large budget.
The bit I can analyse is whether it produces ozone, which I suspected it did, since the ionising needles ha...
2020-05-16 16:54:42 +0000 UTC View Post
There are many interesting things about this unit. It seems OK inside, but has some very odd design quirks.
My favourite is the two external terminals that you short with a bit of wire to reset the clock... &nbs...
2020-05-15 22:43:22 +0000 UTC View Post
Last time I made a video about these switches it turned out they were clones of a Dutch brand. They managed to get me a brief channel strike on YouTube.
In hindsight, I now see that there are other switches with...
2020-05-15 02:28:49 +0000 UTC View Post
Get some beverages, candy and cookies in. And think of intriguing technical questions too.
2020-05-13 22:26:55 +0000 UTC View Post
I just discovered the hard way that the video resolution settings are directly above the timelapse settings, so this video is brought to you in glorious 720P retrovision.
I was going to do this as a live stream build,...
2020-05-12 19:56:38 +0000 UTC View Post
A quick video experiment inspired by a link to another video where they discovered that UVC rapidly discolours bananas.
It seems to work OK.
2020-05-11 19:37:30 +0000 UTC View Post
This electronic mousetrap is actually quite complicated as it uses a couple of metal plates to both detect a mouse and then zap it.
Taking it apart was easy, but reverse engineering the circuitry was quite tricky, as it has a lot of filtering to protect the circuitry from interference by the chunky high voltage transformer...
Just a random video featuring a device that is way too large to fit in my normal filming area.
This is a Breville Hotcup water boiler that has a reservoir of water and a heated chamber that fills with a fixed quantity...
2020-05-07 23:38:09 +0000 UTC View PostHere's the link for next Saturday's livestream.
https://youtu.be/i-b5xcYFyOc
Let me know if I'm doing too many UV videos. I'm always aware that if I do too many on the same thing it can result in subject-fatigue for you guys.
I'll probably release this video soon as these things are all ...
2020-05-05 18:24:05 +0000 UTC View Post
Uh-oh. I've done it again, and filmed a bit that wasn't supposed to be filmed. The extra bit is me checking out the differences between the schematic and actual implementation.
It's from 7:33 to 10:44. I'll probably trim that out the final video.
This device was sent to me by YouTuber Thomas Nagy, w...
2020-05-03 20:09:13 +0000 UTC View PostHopefully this'll work - I'm just finding my way around scheduled streams.
It'll be good to know if the start time that shows up on YouTube relates to the 21:00 UK start time. It does seem to be showing it corre...
2020-05-01 03:54:45 +0000 UTC View Post
I'm not sure I can justify spending £1000 on a UVC meter to test a disco light that is obviously not UVC.
But by using science I reckon I can get an answer with an Adafruit module and a piece of glass.
2020-04-30 03:27:32 +0000 UTC View Post
This started off as a solder paste reflow experiment (that went wrong) and rapidly evolved into a sudden-project with custom designed PCB.
It actually looks pretty good.
2020-04-29 16:01:43 +0000 UTC View Post
I'm toying with making a small batch of these. Is the 6" by 4" (150mm by 100mm) frame size standard around the world? In metric only countries is the frame actually about 100x153mm? I want to make sure it fits in most of these styles of frame without needing sanded or filed down to size.
I showed the artwork for this project in the last live stream, so today I'm experimenting with my first attempt at using a heated reflow plate to simultaneously solder 54 resistors.
The slight downside is that I don't really have a proper solder paste applicator, so instead I'm going to try roughing it by pre-soldering ...
2020-04-26 19:57:53 +0000 UTC View Post
