Biggest engineering mistakes in audiophile gear

Hello,
Jean-Paul and so many others there are SO many things you can put on a tile but it is easy to get trapped by the marketing guys.
I have a 30 year old drilling machine made in Germany. Just two speed setting and a bit of manual control. Whenever i need a finer control i just connect it to a variac.
As long as it keeps working why replace it. Better use higher quality drills and the right lubrication.
Many diy people end up buying gear normally used by professionals. Unless you use it during 10 weekends in a year no use to get a 500 euro router. Better get some Gedore, Knipex, Hazet, Belzer screwdrivers, wrenches and pliers.
A bit strange that diy people sometimes buy professional electrical tools ( to impress their friends!) and use lousy screwdrivers. Your friends wont notice that you are using brand name screwdrivers probably.
If i need a 30 cm/ one feet long drill to drill a single hole i just ask a co worker who has a big collection.
Greetings,Eduard
 
I operate two machine that are SOTA.. One runs windows 95, the other windows 98.
They ain't broken, why fix em?
Good screwdrivers are a must. As are drill bits, a good set of micrometers, squares, and a nice set of over/under reamers.

What really bugs me is when software keeps getting upgrades. For a while, labview upgrades would kill about 30 machines in the building.

Jn
Ps... jean-Paul, but it stays on diy topic..for the most part.
 
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Hello,
These are some Belzer tools i got from my late father. A few decades old so surely good quality. One marked with Mercedes symbol so probably came with a new truck or new engine. I used to work with a 300.000 euro machine and whenever doing repair or maintenance it could go wrong using low quality tools. Damaging the head of a screw or trying to fix something with a normal shaped tool while needing one like in the photo. A repair would take way more time and a expensive machine not working cost more money than getting the right tool.
For the hobby we usually dont care to much about time so then it is ok. BUT i remember buying some tools that were expensive and it turns out that they end up being used much more than expected.
Greetings,Eduard
 

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OK we use for a change not an English word for this. Translated we call it a "heat recovery system". I know a Spanish type which performs quite good, is affordable and has electronics for frost prevention in winter, fan rpm etc. I will search for name and type.

You can build those passive with PVC tubes with large diameter tubes when they are shoved in each other between 2 walls and some openings but it will not exactly look nice.

In large buildings me and colleagues never could see an advantage and many did not even understand what is was about. We thought them to be ill adjusted as we did not see or notice their efficiency. (in a very energy inefficient environment). In private homes however I have seen their results and liked them.

Found it, they have several models and the link leads to the smallest one:

ECOROOM – S&P – S&P
Pretty close in English.

Minnesota Sustainable Housing Initiative
 
Decades ago quality was a standard expectation. Choosing between quality and disposable junk says volumes about modern production and marketing. Standards dropped.
More like you didn't have a choice of buying super-cheap stuff back then. You can still buy really nice things, but they cost as much as they used to (relative to buying power/value of the dollar).

You think that if someone could buy a cordless drill for $40 (today's value) back in the 1960s for $4.60, they wouldn't seriously entertain it?
 
Drills were a good example. My $200 Rigid, not exactly cheap, had an eccentric chuck and in less than a year the batteries both failed after a couple month's storage during a house move. I gave it to movers. A Festool, before they became even more hideously expensive, replaced it.
The other way to look at it is we've been trained to expect paying more for non-subpar product. The opposite should be true with a half century of advancements in manufacturing processes, organization and technology, completely ignoring the labour cost aspect. A Husky ratchet kit was a generic off-the-shelf Canadian Tire affair affordable for burger flipping teenagers. I don't know anything they sell today at any price that would still operate perfectly and be rust free as the one this burger flipping teenager bought in the early 70's.
/Cloud yelling mode disabled.