To get to the engine, I need to remove some items that are in the way. So the intercoolers, ABS pump and Air-box have got to go.
This time lapse video is just for a bit of fun. I thought you might enjoy watching me run around at 8 times normal speed. If you want a more detailed video on how to remove these items from an Audi A6, then please watch my earlier video. Thanks.
Living Small explores the world of tiny houses through the lives of the people on the movement's forefront. The film centers on Anderson Page as he builds a tiny house for the first time, discovering the challenges and rewards of constructing one's own living space. Living Small offers an alternative meditation on the spaces we inhabit and asks the question: Could we live more - with less?
Working on a JFET based overdrive circuit. This is a very basic circuit that overdrives quite nicely. The idea is to get a raw "tiny terror" ish kind of drive tone that I can use into my Tiny Terror amp. Given that I like the sound of the terrors tone, it has no FX loop and id like to get a tubey tone BEFORE it hits the amp so i can add things like delay and reverbs etc...
Currently still testing and tweaking the circuit and so far so good. Im certainly liking what im hearing
In this video we use various techniques including paint washes, dry brushing and metallic paints to create a kind of olde worlde paint job on a concrete dragon plaque. We also paint subtle marble effects with acrylic paints.
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Update on Cabin build- Done insulating the East side. Had some tar paper get torn up with the wind over the weekend, but no biggie. Discussing the ventilation holes and cap ventilation. Also will change from "built up roof" / "stepped roof" to just a thick roof with one layer. I won't insulate the overhangs, but the roof will look better from the ground. It'll also make it easier to install drip edge. Cost a little bit more, but that won't matter in the long run.
Learn how to make a simple tallow candle! This is a great candle for emergency purposes, or just everyday use. You can also add beeswax if you want a harder candle (for instance if you wanted to use a candle mold instead of a jar, or if you wanted to do dipped candles). Have fun trying this out, and let me know how it goes!
If you don’t want to render your own, but want to make some tallow candles. You can get regular beef tallow on Amazon pretty inexpensively: https://amzn.to/2Fd04Z6 (I think it is a waste of money to buy grass-fed tallow for candle-making purposes, but do whatever floats your boat. Save the good stuff for making salmon patties :))
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And please check out our podcast “Pop Culture Paradise” with Joey and Jeff. “Pop Culture Paradise” is a show all about exploring all the crazy entertainment that’s been put out into the universe. Both of us are 80s babies who grew up in the 90s. Of course we grew up in the 90s, it would be weird if we grew up in the 60s. I guess we could always be time travelers. I’ve always wanted to be Marty Mcfly. We could talk about anything really. We could be reviewing classic movies, current movies, coming up with elaborate theories, telling tales from the 80s to 2000s, talking about pickups or going to different events. We won’t pull punches on topics, but we also will give a counter argument. If you like the show, you can subscribe here if you like to watch in video form or on iTunes if you want to listen on the go (or at 1.5 speed, because you like us talking at a coke head’s pace).
So, after you've rendered 1/2 gallon of beef tallow, you might be wondering what to do with it. French fries are definitely not keto friendly (though they are delicious and I won't judge you for having a cheat day and making some homemade sweet potato fries :p). Here are some ideas for you that are keto friendly.
I discovered that my state says the roof must be insulated to R30 (I thought it was R40). This info changes my plans- I no longer need to shave these panels flat because I no longer have to get 9" of foam in place- I only need 7 or 8 inches- this gives me more vertical space between the foam and the plywood. It also means the thickness/height of the foam can vary more, so I don't need to worry about the foam being perfectly flat.
But I also need to fit a 48" wide panel in a 46.5" space (sleepers/ribs must be 48" on center to allow the plywood to attach). So I turned my foam cutter sideways.
Answers the problem not being able to measure how far to cut the roof decking while up on the roof. This would be easier with a man-lift, but with just one person and no man-lift, it becomes dangerous to try to lean out over the edge and measure how far the rafter is from the edge. Roof decking is now trimmed.
In this video we attach wooden legs using fibreglass to the fibreglass mother mold. We also drill holes for bolts to keep the mother mold secure and in place, to keep the latex mold in shape ready for concrete casting.
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In this video we hang our new sound deadening fire retardant curtain around our downstairs rehearsal and live tracking space. We also do a live soundcheck before and after and a side by side comparison. Featuring the song Car Chase by L'Astronaut
Details of the construction of a 0.10 m^2 horizontal wind turbine using 3-D printed airfoils and mostly PVC pipe and fittings. A rotor with magnets was constructed using a Blue Diamond Almonds nut can, and the stator was made using a 3-D printed bobbin and wound with 26 turns of 26 AWG magnet wire.
This is a small solar powered LED light. The circuit uses a QX5252F chip and a 33uH inductor. It is basically the same as a solar garden light but with a larger solar panel, battery and LED. Also, the light is on demand as opposed to always on when it gets dark. On a full charge, the light might stay on for close to 6 hours.
- I wanted to do 20 or 30 boards at a time, but this proved unfeasible. Each board weighs about 30-40 lbs, so 20 or 30 would weigh 600 - 1200 lbs. I didn't feel like the existing decking could take that much weigh dragging over it- would definitely tear up the edge. - I thought about building a small crane, but this would've taken days to do. - Also, with the above ideas- the roof can only handle so much weight concentrated in one spot- it's engineered to withstand about 180 lbs/sq ft. With the boards being 16' long, I can only get 2 stacks of them on the 58' roof and still have room to put more up (16' on one edge, 16' on the other, 16' space in the middle to bring more up = 48'. - Along with this, I stacked them directly over where the rafters meet the walls for maximum capacity. This way, I was able to get about 60 boards ready to install at at time.
I tried making a vertical axis wind turbine with a lower solidity because I wanted to see one operate with a fairly high tip speed ratio. I knew going in that it would not start on its own, and it certainly did that. I could not get it to start at all. Possibly because we did not have very good wind for weeks. Perhaps I did not get it spinning fast enough to keep the wings from stalling. In any event, it looks like this experiment was a flop. But I posted the video for documentation sake.
How to Replace Brake Pads the Proper Way | Fitting new brake pads | how to replace ford brake pads - proper way to fit brake pads SUBSCRIBE;https://www.youtube.com/c/SteveMack Learn how to replace your brake hubs and rotors yourself and save! * Whilst this specific brake job was for BA - BF 2002 - 2007 Ford Falcon, Fairlane, Fairmont - The same basic principals apply to almost every make of car. In this episode, I show you every step including how to remove & install brake calipers, brake pads & how to torque the bolts for a safe, thorough and complete DIY brake job. ** EXTENDED VERSION Now on my HOW TO HACKS channel;https://youtu.be/zn9cSdxoWfI
This video should be watched in conjunction with PART 1 : How to Change Brake Rotors & Hubs;https://youtu.be/NkQqLt3oOT8
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A brief characterization of the VAWT generator and estimation of tip speed ratio (TSR) with some clips of it spinning in the wind. I don't have power production data. Our wind resource is quite poor, and we might not have enough wind to collect power data for some time. The TSR is in the neighborhood of 1.2 to 1.4; a bit low for a VAWT, but not unexpected for a small turbine with relatively large wing chord.
A small 3D printed generator for a VAWT. This spins freely as opposed to the DC motor I used in a previous video. I did not put a lot of turns on the stator so the output voltage was quite small. I incorrectly estimated the power output at 1200 RPM in the video, it should be half that value (dividing Vrms squared by twice the stator resistance to account for a load), or about 0.8 Watts. That could be improved with an increase in the amount of copper in the windings.
An evaluation of a small BLDC quadcopter motor for use as a generator. This is a small generic three phase PM motor that costs less than $4. It is capable of producing around 1.5 watts at 3400 RPM. The cogging torque (torque required to get the shaft spinning) is approximately .001 Nm.
A design idea for a compass for use on a whiteboard. The pivot is a 5/8 inch ID flanged bearing from a tractor supply store. The arm is a length of 3/8" diameter dowel. The other parts are 3D printed. The files can be found on Thingiverse, but I tweaked them for my printer and the dimensions might vary with another printer.
An idea for a computer speaker for modular office furniture. The sound quality for this prototype was not great, but it is convenient and clears the desk of other speakers. Please note that the 4 ohm speakers might lead to the amplifier getting quite warm. I'd recommend either a lower voltage or 8 ohm speakers.
Just a few experimental rotors; one with double the magnets, one with narrower but thicker magnets, and one Halbach array. Doubling the amount of magnetic material nearly doubled the voltage output. Since the power output goes with the square of the voltage, the output power was nearly four times as great.
The maximum power output for the three phase generator at 1000 RPM was determined to be 0.84 Watts. I was hoping to boost that toward 1 Watt by moving the magnets closer to the coils. A new rotor was printed, and the magnets from the previous rotor were epoxied into place. Results from the modification are presented.
I wanted to see how much power a small 3D printed generator could produce. This design uses eight 1" x 1/2" x 1/8" neodymium magnets on a rotor and a single phase stator with 40 turns of 24 AWG wire. At 1000 rpm, it should be capable of delivering about 1/4 Watt to a load.
Two more phase winding were added to the generator in the previous video. When wired in a "Wye" configuration, the output voltage was very close to the theoretical voltage. The theoretical maximum power delivered to a load is just three times that of a single phase, or 0.84 Watts at 1000 RPM in this case.
installing quick release pins on the straps from the crane for lifting rafters- saves having to climb up 30 feet to release the straps. The pins can easily be pulled out from the ground via a long string. Blog: https://loghomejourney.wordpress.com/
A 2-Way transmission line speaker to be used with the Linkwitz-Riley active crossover and amplifier circuits shown in previous videos. For the design, I used results from an on-line transmission line speaker calculator and folded it a bit to fit in a shorter box and have the opening facing forward. I don't think the bass comes through in the video. It actually sounds pretty good.
A closer look at the active crossover circuit. This board is available at OSH Park as a shared project (search: Active Crossover). The intent is for a common interface board between a signal source and powered 2-way speakers. This is not a heavily engineered circuit. It is just what I used in a project and I wanted to share it. I apologize for the poor audio quality.
An overview and test of the Linkwitz-Riley crossover for the pair of speakers I'm working on. The actual crossover frequency appears to be just under 2400 Hz, or about 6% higher than the design frequency of 2250 Hz.
A look at a few different types of active crossover circuits for an upcoming speaker project. A first order RC filter with 6 dB/octave, a Sallen-Key second order filter with 12 dB/octave, a cascaded Sallen-Key and a Linkwitz-Riley fourth order filters with 24 dB/octave roll off are simulated using LTSpice.
We hired a guy with a nice pretty crane to help install our Ridge Pole (RP) because the cost of buying stronger chains and heavier equipment was the same as paying him to do it, and he could do in a day what would take us a month. With winter coming on, we want to get this thing dried in ASAP. The plan was to install rafters and RP at the same time, but when he released pressure on the RP, the RP decided it didn't like its position and rolled to about "1 o'clock". Crane guy got scared, and pulled off the job. Told me to call him when I got the RP stabilized. Fast forward 10 days- after a week of rain, and making a new pair of rafters, stabilizing the RP with a chain hoist, shims and more rebar, we are now ready for the crane again. Didn't turn out like we thought, but it will turn out alright in the end.
A circuit for "remotely" controlling a pair of powered speakers. The control box allows one to turn on power and adjust the volume of each speaker from a centralized location instead of doing the same at each speaker. Power is controlled using a p-channel mosfet and one pin of an XLR3 cable.
This is an MP3 player made from components I got off eBay. A panel mount MP3 player sends the audio signal to a 2x10W amplifier based on a PAM8610 chip. The speakers are HiWave BMR12 full range drivers.
My son also wanted an MP3 player. I couldn't distinguish stereo sound on my daughter's MP3 player because the speakers were somewhat close together. So this time I made a mono speaker with an active crossover, a 4" woofer and 1" tweeter. This video is mainly for documentation; a few audio clips and an overview of the circuit and speaker components.
A small addition to an audio amplifier to reduce pop when turning on the power. I'm using a TPA3118D2 based amplifier that I bought on eBay. I ended up using a 10uF capacitor and an SB130 diode because that is what I had in my spare parts box
I decided to borrow most of the components from the bi-amped active crossover speakers and use a tweeter instead of a full range driver. The crossover itself is a board that was made for an MP3 player for my son. I got three from OSH Park, so one for the MP3 player and two for these speakers. Overall, I am quite happy with these, but the bass is a bit strong. It may be good to stuff the box and dampen things out.
I had a couple of Peerless 5-1/4" subwoofers and decided to make some two-way speakers. The subwoofers were paired with Tang Band 3" full range drivers that had a similar sensitivity rating. Each speaker is powered by a 20 watt stereo class D amplifier from Adafruit (10 watts per channel with a 12 volt supply and an 8 ohm load). The left channel is used for the full range driver and the right for the subwoofer. The crossover consists of LM833 audio op-amps in Sallen-Key high pass and low pass filter topologies. The filtered signals are then sent to the appropriate driver amplifiers. Note: in the crossover simulations I used 15k ohm resistors, but in the actual circuit I used 16.2k ohm resistors. I like how the speakers sound; although, they don't sound as good in the video. I don't have a microphone (yet) to measure their true performance. Volume can be set for each speaker using a potentiometer on class D amplifiers. But it would be good for the source to have its own master volume control. Some sample music is provided at the end to show how it sounds with different music styles.
I added a simple bass boost circuit to the shelf speakers I made earlier. It is based on an LM833 audio op-amp. The intent was to increase the gain on frequencies below 100 Hz where the output of the speaker rolls off in hopes of extending the range a bit.
A speaker designed around the Tang Band W3-881SJF 3" full range driver. I plan on playing classical music with these speakers in my office. So the emphasis was on small size without a ton of bass. I am very pleased with the way these speakers turned out.
This is a powered speaker that is intended to look a bit utilitarian. It is powered by a 9 volt wall wart and accepts an audio signal through a stereo 3.5mm jack. The stereo signal is converted to a mono signal through a resistor network before being fed into an audio opamp and finally a small power amplifier. There is both gain adjustment and volume adjustment. The speaker is a HiWave BMR12 full range square speaker. The stereo to mono is just two 4.7k resistors (one for each channel) feeding a 47k resistor. If you Google "line in stereo to mono circuit" the image will probably show up near the top.
A guitar amplifier with more of a flat format. This uses a small class D amplifier along with a Dayton Audio exciter to turn a 1/4 inch thick White Birch plywood panel into a speaker. I like this amplifier because it is light, folds up for easy storage and transport, does not have a paper cone that needs protection, and has a warm tone. On the down side, it is not as loud as a typical speaker of the same wattage I think this would be best used with an acoustic guitar.
A small 5 Watt amplifier based on an LM4950 chip amp. The speaker is a GF1004 from DigiKey, the op-amp is an LM833 and the MOSFET is a 2N7000. Some details of the box construction are given. Overall, I'm pleased with the way it turned out. There is a slight crackling noise which I haven't tracked down the cause of yet. It produces enough sound for a small room. The circuit board and parts list can be found at OSH Park.
This is the completed line array speaker with 12 full range drivers. Each driver has a 1-Watt amplifier mounted on the back of the speaker. Details of the enclosure construction are presented. The electronics are described in a previous video. The input circuitry will be cleaned up a bit and mounted one the back as well after a bit of testing.
I'm working on a diy line array speaker. The plan is to have a dozen 1-1/2" diameter full range speakers spaced about 2-7/8" apart in a line. Each speaker will have its own 1-Watt amplifier. The inputs to the amplifiers will be driven by circuitry described in this video. Note: this is my first attempt at a line array speaker and I am not an electrical engineer. So take what is presented here with a grain of salt so to speak.