series_hybrid

series_hybrid t1_iv18ecx wrote

I only meant to include it as a point of reference for younger readers who are not familiar with it.

Staged construction Ioan's are well-suited to the 3D printing of the shell of a new home.

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series_hybrid t1_iuxfwp2 wrote

My sister had a house built in stages. They bought a desirable lot as soon as a development opened up.

They got plans made, and instead of financing the entire build, they got a home equity loan to build the foundation and shell (walls, roof, doors, windows, etc).

At that point, they had an asset that was worth something, and they could then take out a completion loan against the structure, and its equity.

This staged process allowed them to have he second house built, and they could then take their time moving in, and selling the first house.

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series_hybrid t1_iux7qmm wrote

The thing I like most is that in a couple days, we are able to throw up a "waterproof shell", and that is the hardest part.

Once the foundation, walls, roof, doors and windows are in...the considerable interior work can proceed regardless of the weather.

It also provides a "reasonably" safe place for the materials and tools to be stored.

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series_hybrid t1_iuhr5tq wrote

The GM LS-family of engines is exceptional, and they use pushrods. It was an attempt to see how much modern design could keep pushrods relevant, and the results were good enough to continue pushrods for quite a while.

The main benefit is they cost less than OHC, especially if you are only using 2-valves per cylinder. They also allow a shorter engine, but that's only a benefit for something like a Corvette, while millions of SUV's from GM didn't care if a pushrod engine was an inch shorter.

I would go so far as to say that if you are adding a turbo or a supercharger, you only need 2-valves per cylinder. For naturally aspirated, OHC and four valves per cylinder seem to be dominant, so there must be a benefit to that.

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series_hybrid t1_iuhqlik wrote

To add to this, before the advent of computer chips, we could not adjust timing "on the fly" to avoid detonation (gasoline igniting before the spark event).

For instance, the GM LS engine family has an "anti-knock" sensor that can detect the beginnings of detonation before its audible to the human ear, and it will then retard the spark to allow the cylinder in question to cool down a hair.

Before that technology, the compression ratio had to be chosen to work for all engines across the entire country, using all grades of fuel, even fuel with variable quality from a low-quality brand.

Now, the LS family of engines can come from the factory with a relatively high compression ratio.

In the early 1970's, lowering the compression ratio a bit was the fastest and cheapest way to lower cylinder temperatures, and thus create less emissions of the type that was being measured.

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series_hybrid t1_iufkzal wrote

Can you get a similar box made from heavy thick plastic? Whenever I am forced to work on any of the old junction boxes, I automatically pull it out and upgrade to plastic (I have an old house).

Whether metal or plastic, cut the box until its the right depth. If you can't cut the front because it has the threaded holes for screws from the ceiling fan, then cut the back off the box to make it the right depth.

If there is no integrated wood behind this (it sounds like there is wood behind the box), then add a wood back to the box.

If one side is up against a crossbeam, drill a couple holes on that side of the box to anchor it to the crossbar with deck sscrews.

Lots of options...

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series_hybrid t1_iud6cwt wrote

Somehow there will be a subscription service that stops working if you don't pay it monthly by auto-pay on your credit card. The back will rise up like an adjustable hospital bed, but suddenly it won't go down, and you get an email on your phone. Gotta pay. They will all come with a heater, and a back massager, but they only work if you commit to a years contract and auto-pay.

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series_hybrid t1_iud627f wrote

This is what annoys me so much. If a company discovers a way to make solar panels for half the cost of the current methods, every article will say its a "game changer" because cheap solar panels mean everyone can afford them, now that they cost half as much.

The truth is...if a company patents a new process, and the manufacture of them is cut in half, then the company will sell them for 10% less to undercut the competition. Then, 3 years later the Chinese will have succeeded in using industrial spies to discover the method, and they will copy it with a few small tweaks, and THEN they will be sold for 20% less, to undercut the research company that discovered the method.

The guy who invented the Gatling gun literally said that it was so...future armies would only need much smaller armies, and there would be fewer inured or killed soldiers. I think that was PR and he knew it was BS at the time, but...who in their right mind wouldn't think that armies would stay the same size, and gatling guns (plus improved machine guns later) would be a force multipier?

My wife insisted that she wanted a "purple mattress" based on chat-forum recommendations from customers. We saved up and bought one and she likes it (I don't care either way). However, my brother in Christ, it is a silicone rubber mattress that cost $800. If I had slept on one at a friends house, I would say the mattress is nice, but my old mattress was ok. I'd take a purple mattress any day its offered, as long as someone else is paying for it.

It absolutely must cost half of the cost to manufacture compared to a common style mattress, even taking into consideration the cheap labor in Malaysia/Indonesia/China/India/etc...

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series_hybrid t1_iu50d43 wrote

I watched the Andrew Camarata channel for a few months. Very engaging (youtube)

He documents doing a lot of off-roading, and having bought a lot of used cars he fixed and then beat on for fun.

The Jeep was good for snowplowing because it was more powerful, but the Mitsubishi was more reliable offroad, partially because (according to him) the steering bits sit up higher and out f the way from damage.

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series_hybrid t1_iu4nqux wrote

There were several factors that played into the popularity of these. Harley suucceeded, but any movie about their origins will make it sound like this was their original idea.

Harley had a great deal of competition specifically because the bar or entry was so low at the time. Anyone could start a "company" in their barn/garage, and many did so.

At the time of this model-1, there were kits that you could attach to a bicycle. Harley felt there was a market for a stronger frame and a more powerful engine.

Ford introduced payment plans in the 1920's, so before then, vehicles were a full price cash purchase. Cars were the plaything of the rich, until the Model T, which sold for under $500 just a few years after it was introduced.

It would be difficult yo convey how popular bicycles were from the 1880's until the Model T, and motor kits for bicycles were hugely popular.

Bicycle manufacturers began making optional frames that were stronger, and were pre-made to accept a motor kit after the owner had some time to save up for the purchase. In this way, the bike and the motor could be purchased separately.

WW1 wiped out hundreds of small motor-bike companies, with Indian and Harley surviving. As with many other aspects of our past, the winners write the history books.

Harley was simple, rugged, and cheap enough to survive, and just powerful enough and advanced enough to be desirable.

The Flying Merkel was much more advanced, but also too expensive for the mass market.

Harley recognized that racing was good advertising, and that low price was vital to survive business cycles, just like the Model T.

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series_hybrid t1_itw1hqj wrote

Th we other posts are the most likely culprit.

That being said, it's useful to add pipe insulation from the water heater on all the hot water pipes.

Water heaters have factory insulation, but adding a wrap around it that is designed for that will make it cycle less.

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