Clearing smoke with an Air purifier. Which is fastest, quietest? Matthias random stuff 2022-04-21 | Testing the dreo air purifier against other methods to see which clears smoke from the air the fastest while graphing particulate levels in the air with a particle sensor.Tested the Dreo air purifier, Dyson purifier cool, fan with filter, a dust collectorand a homemade one.Get the air purifier using this link: woodgears.ca/dr/apThere is a 25% discount code on the Dreo air purifier:Discount code, valid to Nov 15 2022: JWQB86M6DEPA#DREO #DREOAIRPURIFIER
Inverters dont like power tools Matthias random stuff 2022-12-01 | Exploring inverter oscillations of the ecoflow box when it's very overloaded, as happens when motors start up. This is a follow-up to my previuous video about inverter instability on the EcoFlow power stationMore about inverter instability at:link.medium.com/tDYDK9mTjvb
I ticked off a sponsor Matthias random stuff 2022-11-22 | I have done a fair number of sponsored videos the last two years. Usually it goes well, but when I tried to get a company to fix a problem with their product, I hit an impasse.Though I don't try to hide the company name, I deliberately didn't mention them in anythign I said because I don't want this video to show up if you search for the company -- I'm not out to hurt them. So you can see the company name and logo on the battery box, but that probably isn't enough for YouTube's search algorithms to pick up on that.This is a revised version of the video, see explanation starting at 9:05Also see the follow-up on this video: youtu.be/hhonq0WSq_c
Power monitoring 16 circuits at the breaker panel Matthias random stuff 2022-11-09 | I bought an "emporia" energy monitoring box, which came with current transformers for measuring power going to individual circuits in the house. So I can figure out where the electricity is actually going. The box is meant to go inside the breaker panel, but I mounted it above.
Infrared heater efficiency how much is radiated infrared? Matthias random stuff 2022-10-08 | Testing the efficiency of three different infrared heaters. All electric heaters turn all the electricity into heat, but for infrared heaters, how much of that heat is really radiated infrared?This video is sponsored by Maxoak. You can buy their heater at:bit.ly/3eaPeHi.Discount code (20%off): Matthias20Expires on Oct 17 2022
Amateur iPad screen replacement Matthias random stuff 2022-09-20 | First time replacing an iPad screen.Lots of things to learn and mistakes, but ultimately successful.If you want to replace a screen, watch this one plus one by a pro, so you will know what to do, and what not to do! The pros just make it look too easy.
This air compressor will fail Matthias random stuff 2022-09-15 | More experiments with my widow air conditioner compressor, why it will fail eventually, and using it's 300 PSI output pressure for some descruction. Also explaining how the scroll compressor inside works.Not wanting to cut this one open, I researched what is inside one of these online, particularly this video:youtu.be/e7JVAGGQTvI
Reusing an air conditioner compressor Matthias random stuff 2022-08-30 | Re-using the compressor from a broken 8000 btu/hr window air conditioner.Nice and quiet, took it up to 250 PSI, but can probably go much higher. 1 CFM throughput.
Plastic repair melting it back together Matthias random stuff 2022-08-08 | A plastic part for the mouse trap game got broken, resulting in much howling. Heating up a utility knife blade with a torch, I was able to melt both ends at the same time and immediately press them together, essentially welding the plastic parts together.#shorts Made this a #shorts cause it's very short, though with how my #shorts videos are doing these days, it may well be the last #shorts that I make.
Our electrical is all wobbly, measuring power is hard Matthias random stuff 2022-08-05 | I wanted to measure the power of a 240 volt circuit, examined the wavefirms, and found the surprisingly wobbly, not at all like the sine wave I expected.
Wiring up and reusing a clothes dryer motor Matthias random stuff 2022-06-28 | A friend saved the motor from his old clothes dryer. Figuring out how it's wired up, and showing where I have used a clothes dryer motor before to build a dust collector.More about motors at: http://woodgears.ca/motors
Dynamic balancing with a scope and small speaker Matthias random stuff 2022-06-17 | Using a small loudspeaker as a transducer to pick up vibrations from a spinnint rotor and measuring those with an oscilloscope. This allows me to quantify the vibration for doing dynamic balancing.This whole method to have something to try to balance the vibrations of then new shelix cutter head on my jointer.
Which fan blows hardest Tower fans and regular fans Matthias random stuff 2022-06-13 | Comparing three different tower fans to regular desk fans and pedestal fans, evaluating their ability to move air.The fan I used was the Dreo Pilot max tower fanGet the fan using this link: woodgears.ca/dr/tf15% discount code for Dreo website, valid until Nov 15 2022: 9RP733E2X9Z0
Tower fans are kind of weird Matthias random stuff 2022-06-07 | I have always wondered what makes the vertical blower drum in a tower fan blow forward as opposed to any random direction. Playing around with a physical model, I observed some interesting behaviour.The Dreo fan is the Dreo Pilot max tower fanGet the fan using this link: woodgears.ca/dr/tf15% discount code for Dreo website, valid until Nov 15 2022: 9RP733E2X9Z0
Lawn mower of destruction Matthias random stuff 2022-05-27 | A #shorts version of my 8 year old video of mowing really tall grass with my lawn tractor. It was just so satisfying to do!woodgears.ca/misc/mower.html
Window air conditioner efficiency test Matthias random stuff 2022-05-19 | Testing how much cooling I can get out of a window air conditioner by heating the room at the same time to maintain the same temperature. This tells me how much the window air conditioner is able to deliver.This video is sponsored by DREO, who provided this air conditionerGet the air conditioner using this link: woodgears.ca/dr/acMaking the window AC fit into the casement window: youtu.be/-h5b57ZxQQI
Measuring the dust settling how long does it take? Matthias random stuff 2022-05-02 | A follow-up on my air purifier video, measuring how long it takes for dust to clear from the air on it's own without using an air purifier.It turns out that different types of particulate have dramatically different settling times. And stirring the air with a fan helps the dust to settle.This is a follow up of my video about the Dreo air purifier which I talk about at near the end of the video. Get the Dreo air purifier using this link: woodgears.ca/dr/ap25% Discount code, valid to Nov 15 2022: JWQB86M6DEPAPrevious video about air purifiers: youtu.be/rDZ9yUdM2wA
This bell rings two notes at the same time Matthias random stuff 2022-03-20 | Modifying a piece of pipe to work as a bell that rings two notes at the same time. #shortsI made a longer video on this topic in 2017http://woodgears.ca/physics/bell
Where does the heat go when you heat up a room? Matthias random stuff 2022-03-03 | Investigating where the heat ends up when you warm up a room using a space heater. This determines how fast the room actually warms up.Get the space heater using this link: woodgears.ca/dr/shPromotional discount code, valid to Nov 15 2022: 9RP733E2X9Z0
How to burn sawdust in a wood stove #shorts Matthias random stuff 2022-01-26 | You can burn sawdust in a wood stove, but you don't want to just dump it in there and smother the flames. #shortsThis was originally shot in 2017.I scrunched this video down to fit into a #short.
How warm can I get my shed with a space heater Matthias random stuff 2022-01-20 | When I built my shed, I added some insulation. Now I'm curious how warm I can get it with a little space heater. I'm using one from Dreo, who sponsored this video.Get the space heater using this link: woodgears.ca/dr/shPromotional 15% discount code, valid to Nov 15 2022: 9RP733E2X9Z0#DREO #DREOSPACEHEATER
Experiment videos, sponsors, and square shorts Matthias random stuff 2022-01-18 | A whole bunch of updates on this and thatChapters:00:00 Why so few videos this past month00:33 Doing sponsored videos01:38 Oil level sensor flakiness02:15 Temperature setup in the shed for upcoming video02:51 Flaky sensors and chinese clone components04:34 Doing more experiment videos05:08 Strength testing apparatus05:37 Doing more shorts, square shorts, some re-edits very old videos.07:36 Shorts on the shorts shelf make no money08:55 Upcoming videos about my Jointer09:29 More about oil level sensor flakiness
Ultrasonic distance sensor as an oil level gauge Matthias random stuff 2021-12-08 | Our oil tank level gauge broke, so I'm using an ultrasonic distance sensor (US-100). I got curious about how these work so I hooked up an oscilloscope. These are quite fascinating and must do quite a bit of signal processing to figure out the distance reading.
LED bulb failed for dumbest of reasons Matthias random stuff 2021-12-01 | Figuring out why yet another LED bulb has failed. Such a dumb reason!This one is the exception though. I think most fail for less trivial reasons, mostly getting too hot in light fixtures, which shortens the life of LED elements and electronics considerably.#shorts
Fishing a wire through the wall using magnets Matthias random stuff 2021-11-25 | I had to fish a wire from a switch to the attic. I used magnets to snag a piece of iron on the end of a string, then pulled that through, then used the string to pull the romex wire through. I also used magnets to work out the alignment into the attic.Another similar wire fishing adventure:woodgears.ca/wiring/index.html
Oil filled heaters: 600 watt heaters pretending to be 1500 watts Matthias random stuff 2021-11-21 | I love these oil filled space heaters because they are completely quiet. But every one of them I have tried will trip it's internal overheat thermostat if it's set higher than level "1", which is about 600 watts.Seeing that leves 2 and 3 are useless and perhaps dangerous, I modified mine to have a 400 watt and 600 watt level, but no higher levels.
Inside a portable battery power station Matthias random stuff 2021-11-15 | Opening up my EcoFlow Delta Max to see what's inside and make a small change (which turned out to be pointless)Affiliate links:https://ecoflow.com?aff=138 (Works in USA only)amazon.com/dp/B09D7N1ZV8?maas=maas_adg_A52B54DA4DEEE7162858D76713F96ABC_afap_abs&ref_=aa_maas&ref=myi_title_d
Homemade leaf mulcher from a yard sale Matthias random stuff 2021-11-08 | I bought this crazy homemade leaf mulching contraption because it was a good price for a big induction motor. But I had to try it out before taking it apart.
Confirmed: This makes cutoff disks last 10x longer (replicating Fireball Tools experiment) Matthias random stuff 2021-10-28 | It turns out a very long and slow cut, going over the same gouge back and forth over and over again wears down the disk 10x less than a fast cutting across cut. But it takes 3x longer to make the cut.Fireball tools' video: "This Trick makes your Grinding discs last longer." youtu.be/hid9bDnSeokI suspect the reason it makes such a big difference is cutting through the metal subjects the disk to a small area with a lot of force, and a sharp edge too, whereas the shallow gouging back and forth doesn't expose the disk to any harsh edges or point forces.I accidentally uploaded my low res test render AGAIN, so this is a re-upload 20 minutes after the initial one.
Long sheet metal bends, no brake Matthias random stuff 2021-10-07 | Improvising a metal brake using some clamped together 2x4s. Key to a straight bend is a sort of "shoe" to whack with a rubber mallet to spread out the force.Moer about shed metal roofing:http://woodgears.ca/shed/metal_roof.html
Measuring welder current with a computer Matthias random stuff 2021-09-15 | I wanted to know how much power my welder uses, given that it only uses a 120 volt 15 amp socket. Then wanted to know it's output current too, but that required a different measurement setup.
Inductive current measuring using Raspberry Pi Matthias random stuff 2021-09-09 | Making a coil to inductively sense current flowing through 2-conductor house wiring cables, without modifying the house wiring.I used a Raspberry Pi and an ADS1115 A/D converter to sense the output from my coil and graphed it using ascii graphics on the Raspberry Pi computer. I also experimented with how much current it takes to instantly pop a breaker.
Re-greasing a shielded bearing (no disassembly) Matthias random stuff 2021-08-08 | Cleaning out and re-greasing shielded ball bearings without poppingthe shields off. Using an air compressor and a vacuum cleaner to clean out and force grease back inside.http://woodgears.ca/motors/bearings.html
I had to sawzall my deadbolt Matthias random stuff 2021-07-18 | A fancy mortise door lock failed shut. The only way I knew to get it out was to cut the deadbolt!But once I had the lock out and disassembled it, I realized there *would* have been an easier way.
Motion light gadget Matthias random stuff 2021-07-05 | I like these motion triggered light switches, but often the room's light swith is where these could not work. So I had t he idea of just making a stand-alone gadget with one of these switches in it that I can postion and aim just right to trigger when I enter the room, and it lights up its own lamp.
Best fan placement to move air through the house Matthias random stuff 2021-06-30 | Experiments and anemometer measurements to figure out where to best place a fan to optimally air out the house to cool it down at night.More physics experiments:http://woodgears.ca/physics
Anemometer computer interface hack Matthias random stuff 2021-06-28 | Hacking an anemometer to interface it to a Raspberry Pi computer. This to get more accurate readings than the anemometer itself can produce, for an upcoming experiment.More tech hacks: http://woodgears.ca/tech
Weed Root ball extractor lever Matthias random stuff 2021-06-22 | Starting with a $3 gardening tool and turning it into a lever tool for prying the root balls of tough weeds out of the grass. Doesn't work on tap roots, but very effective at extracting the root cluster from a lot of other weeds.More projects around the home:http://woodgears.ca/home_improvement.html
Measuring pressure inside a balloon as its inflated. Matthias random stuff 2021-06-16 | Experiments measuring pressures inside of balloons as they are inflated, and trying some tricks popping nested balloons.More physics realted stuff at:http://woodgears.ca/physics
Balancing a fan that shakes too much Matthias random stuff 2021-06-07 | how to balance the blade of a box fan that is shaking too much. Ironically, this involves shaking the fan some more!Using a box fan here, but the same procedure could be used on an oscillating fan.
Monitoring power use with temperature sensors Matthias random stuff 2021-06-03 | Using ds18b20 temperature sensors to monitor power usage of large power users by measuring the temperature rise in the house wiring cables. A completely non-invasive way of monitoring power usage.http://woodgears.ca/physics/wire_temperature.html
Recliner seat frame fix Matthias random stuff 2021-05-21 | Fixing the wooden frame of a lazy-boy like recliner. The frame for the seat broke apart, due to weak joinery. I made some new wooden parts to make it stronger than new. There wasn't anything wrong with the reclining mechanism.More furniture repairs:http://woodgears.ca/repairs
Creaking rocking chair fix Matthias random stuff 2021-05-11 | Fixing a creaky joint in a rocking chair spindle joint with another dowel alongside the spindle, but in such a way that the result is hidden.http://woodgears.ca/repairs
Using the second (I2C 0) port on a Raspberry Pi Matthias random stuff 2021-05-04 | Showing how the second I2C port (i2c 0) can be used on a raspberry pi, so that more I2C peripherals can be connected to it, such as connecting four BMP280 or BME280 sensors to the raspberry pi at the same time.
Hopper fed catapult: Motivations and challenges Matthias random stuff 2021-04-22 | Talking about challenges and motivations for my hopper fed cap shooter.woodgears.ca/capshooter/hopper.html
Blowing out eggs with a vacuum cleaner Matthias random stuff 2021-04-06 | Using a vacuum cleaner to suck the content out of eggs so the intact shells can be used to make Easter decorations. This process is normally done by blowing the contents out, but this is hard and tiring to do. A vacuum cleaner does a quicker job of it.
I bought the improved Jimmy Diresta ice pick... 20 years ago! Matthias random stuff 2021-04-01 | Taking a fun awl-stab at the Jimmy Diresta ice pick. \I figured that's a good topic for an April 1'st.http://woodgears.ca/misc/april_2021.htmlYou can buy the jimmy Diresta ice pick here:imakeny.com/products/diresta-ice-pickFlywheel screwdriverkickstarter.com/projects/1496249101/kinetic-driver
Change table saw blade without switching off the saw? (clickbait) Matthias random stuff 2021-03-03 | In the last video on my main channel, I mentioned the importance of turning off your table saw before changing the blade. Lots of people commented on that. I thought I'd try it without switching off the saw!
Big bandsaw questions Matthias random stuff 2021-02-22 | My first pre-announced live stream! I have been busy working on the plans for my new bandsaw, so have not been working on videos. I thought I'd do a live stream to update those interested and answer questions.
Spontaneous live stream Matthias random stuff 2021-01-06 | My second attempt at a spontaneous live stream. I accidentally killed the first one!Answering viewer questions.
