Achievements

100+ Comments Earned a bronze medal
  • DIY 600 Watt Amplifier With Old Computer SMPS

    PIP is never a useful value, and you will essentially never see it in the specs of quality sound equipment, professional or otherwise, because it is a totally useless value.First, since what constitutes "instantaneous" has no definition, the value has no meaning, and second, how much power a circuit can take in extremely transitory time periods simply has no bearing on audio performance or longevity.

    View Instructable »
  • ManifoldSky commented on undinstructable's instructable BGA Rework5 months ago
    BGA Rework

    You see, that's not really true, and that's kinda the point I am making. If reflowing is not successful, there is still an option to rework it by reballing the chip rather than just tossing it out.Reballing involves melting the solder connections so as to remove the chip from the board entirely, removing the remaining solder, refluxing the board, adding new balls, remounting the chip, and melting the solder.

    Sure. Not commenting on the instructable, just on the terminology used in this particular comment, since the distinction is important.Especially if people then conclude that there hardware is unfixable.

    View Instructable »
  • ManifoldSky commented on undinstructable's instructable BGA Rework5 months ago
    BGA Rework

    And?"A Surface Mount Rework station RE-FLOWS the solder so the individual component can be removed either automatically or manually with a suction wand and replaced. This machine does not remove the solder it re-flows it for component replacement."And in the above intractable the component is NOT removed, and it is NOT replaced.The above method simply remelts the solder and then allows it to reharden, using the original solder from the original BGA.

    View Instructable »
  • ManifoldSky commented on undinstructable's instructable BGA Rework5 months ago
    BGA Rework

    This is not rework, it's reflow. a very important distinction, as they serve different purposes.

    View Instructable »
  • ManifoldSky commented on NewAge-2014's instructable A Healthier Toilet at Home7 months ago
    A Healthier Toilet at Home

    That link is not to any "finding" least of all any sort of scientific study. It is just more unsubstantiated claims made by people with dubious qualifications. While there are anatomical reasons that squatting for solid elimination is beneficial, the claims made about liquid elimination are not only not backed by any anatomical let alone scientific realities, they are, in fact, mostly counterfactual. In fact, in nature, most male animals and many female species, habitually pee standing up.

    View Instructable »
  • How to Take Part in Red Bull Flugtag - Portland 2015

    "Pilot to be positioned on TOP of plane."This is not a rule. In fact, this position is actually unofficially discouraged.Also,, just because the pilot may or may not be the heaviest thing on the craft does not make the pilot the center of gravity.|As a side note, concentrating mass in the nose is a great recipe for minimizing lift! If your aim is to have as close to zero hang time (and thus distance) as possible, by all means weight your craft far forward!

    "Pilot to be positioned on TOP of plane."This is not a rule. In fact, this position is actually unofficially discouraged.Also, just because the pilot may or may not be the heaviest thing on the craft does not make the pilot the center of gravity.|As a side note, concentrating mass in the nose is a great recipe for minimizing lift! If your aim is to have as close to zero hang time (and thus distance) as possible, by all means weight your craft far forward!

    View Instructable »
  • DIY 600 Watt Amplifier With Old Computer SMPS

    Most audio amplifiers are not rated using peak instantaneous power (unless they are complete garbage, and being marketed by charlatans).PIP ratings are a scam, and no quality manufacture uses it to rate their products.

    View Instructable »
  • Extend Defective Fluorescent Tube-Light Life

    I could have found wire, wrapped the terminals, and plugged a bulb back in un under two minutes. Where is this mythical store you are talking about shopping at?

    View Instructable »
  • ManifoldSky commented on TheCuttingBored's instructable DIY Vintage Crates12 months ago
    DIY Vintage Crates

    3/4" seems like overkill, plus they must weigh a ton!I suspect 1/2" would have been fine for most uses, and if you instead built a frame and then added plywood siding, even 1/4".Also, another construction technique often employees was to use wooden slats instead of plywood. Just glue 3 or 4 1x4s together per side.

    View Instructable »
  • ManifoldSky commented on jessyratfink's instructable Keep Celery Fresh for Weeks1 year ago
    Keep Celery Fresh for Weeks

    So what? "They" thought asbestos was harmless until it was subjected to scientific analysis. That analysis showed that it was not.That same scientific process has examined aluminum. I has nothing to do with Alzheimer's.

    No, it doesn't. If "who [sic] you talk to" is even remotely versed in the science, there is only one position: aluminum has nothing to do with Alzheimer's.And I don't need Google. My degree is in the field.

    So?That has literally nothing to do with whether or not Aluminum causes Alzheimer's. It doesn't.

    "Aluminum cookware leaches into acidic foods when cooking; shorts out the neurons in the nervous system; autopsies have shown that to be true."Aluminum does not short out neurons in the nervous system (as opposed to where?!?) and autopsies have shown nothing of the kind.Neuroscience is my field, and nothing you wrote is true.

    View Instructable »
  • ManifoldSky commented on SKSW47's instructable DIY Bike Generator1 year ago
    DIY Bike Generator

    FTR, none of these "answers" actually answer the question, which is about efficiency, not power output. This set up is extremely inefficient, and has unnecessary losses at multiple stages, including the unnecessary conversation from DC to AC (and back again).

    View Instructable »
  • ManifoldSky commented on Johnt007871's instructable Fix Saggy Book Shelf1 year ago
    Fix Saggy Book Shelf

    A slightly more invisible solution is to turn the C-channel 90° and slot the shelf directly in to it. Then simply rest the shelf on the brackets.

    View Instructable »
  • How to make a unique tile picture for less than $3!

    Use iron-on transfer paper. It is designed to make T-shirt iron ons from standard ink jet printers.

    View Instructable »
  • ManifoldSky commented on antoniraj's instructable Make Energy From Weeds1 year ago
    Make Energy From Weeds

    No, it's not. On an individual scale, the amount of methane produced is negligible, and the cost to store it under pressure minimizes the advantages. It also uses HUGE amounts of raw materials, resulting in running out of them within a very short period of time.This is one reason of many why electricity and heat are spotty at best in rural China and India.

    View Instructable »