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  • PaulA23 commented on scooters2's instructable Kristins Teardrop2 months ago
    Kristins Teardrop

    Beautiful work! My favorite builds are always the "I used what I had" builds, because they're so resourceful! Thanks for posting this!

    I'm obviously not the original author, but thought I might reply if that's ok... Most of these trailers have a standard 1500lb axle, and those little tires are the same ones used on many pop-up campers. The only heavy wood he used are the 2 sheets of 1/2" plywood on the floor - the rest is 1x2 furrow strips & luan (1/4") paneling, all of which are very lightweight. I'd venture a guess that he's not even anywhere near 1500lbs dry weight - probably more like half that, maybe 800lbs at most. :-)

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  • PaulA23 commented on Donald Bell's instructable Make Beautiful Solder Joints2 months ago
    Make Beautiful Solder Joints

    ...just remember to pull the lead with pliers or tweezers - not your fingers! (yes, I've accidentally burned my fingers before by absent-mindedly pulling the lead from the other side while re-flowing, lol) :-)

    ...also called "lifting a pad", and is VERY frustrating when it happens... :-)

    Another method is:- Solder- Flush clip- Reflow while gently pulling the component lead back out JUST A TINY BIT.This creates a near perfectly flush joint on the backside of the PTH, & doesn't require the 2nd extra solder. It takes some patience, but looks AMAZING.Since the PTHs (plated through holes) are, well... plated, you can still be sure to have a solid connection.However, it is worth noting that previous comments regarding visible leads on PTH soldering standards are correct, even though said standards don't really apply to our little hobby worlds... :-)

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  • PaulA23 commented on beul's instructable PICKPOX2 months ago
    PICKPOX

    Excellent idea!!! I've been into electronics a long time, & have also had issues with keeping small components organized. Your solution is a cheap, simple, solid idea. Good job! :-)

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  • PaulA23 commented on Daniel Quintana's instructable Uware: a DIY AR Headset3 months ago
    Uware: a DIY AR Headset

    You keep mentioning your future plans as if you're afraid people will think this is "too simple". This is GROUNDBREAKING. You've managed to create something that a giant corporation failed to perfect. EVERY project begins humbly - even for the hundreds of engineers at google. Uware requires at least an intermediate to advanced level of skill in several major skillsets, including 3D design (of a pseudo-bionic device), software programming, & electronics engineering. Many do not posess the aptitude to tackle something like this; I HIGHLY applaud you, and I would definitely buy something like this - even as-is.I'm fairly good with electronics & programming myself (though i hate java), so let me know if there's any way I can help.Excellent job!!

    Btw, I'm able to take that step back & see because I was an aviation electronics tech in the Navy, and I've done a LOT of programming for big companies... :-)

    Daniel, you are most welcome! I was actually just recently thinking of attempting to make something very similar to use in my work... The basic gist would be something similar to the employee's order screen at a fast food restaurant, where you'd see a simple list of items to retrieve, & a gesture would remove a line item. I work in a manufacturing plant where we build floor & roof trusses, and I am a "picker." Using a forklift (and my hands), my job is to select the correct size & grade of wood from a "pick list." Instead of constantly referring to the paper, I'd LOVE to digitize the list (possibly OCR or direct download, if I could talk them into it), then present said list in the AR headset, with the ability to remove completed items... :-)Anyway, sorr...

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    Daniel, you are most welcome! I was actually just recently thinking of attempting to make something very similar to use in my work... The basic gist would be something similar to the employee's order screen at a fast food restaurant, where you'd see a simple list of items to retrieve, & a gesture would remove a line item. I work in a manufacturing plant where we build floor & roof trusses, and I am a "picker." Using a forklift (and my hands), my job is to select the correct size & grade of wood from a "pick list." Instead of constantly referring to the paper, I'd LOVE to digitize the list (possibly OCR or direct download, if I could talk them into it), then present said list in the AR headset, with the ability to remove completed items... :-)Anyway, sorry to hijack your comments; you have a great start to something awesome! :-)

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  • PaulA23 commented on LabRatMatt's instructable Hybrid Rocket Engine4 months ago
    Hybrid Rocket Engine

    Research. This is nothing more than someone researching the physics of what makes a rocket work, and is no more dangerous than a "real" model rocket. There isn't any "telling it like it is" because the OP has already REPEATEDLY noted the dangerous nature of the project, as well as the valuable lessons learned. Whatever happened to experimentation and (God forbid) helping, thereby increasing knowledge for all who stumble across the information?

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  • PaulA23 commented on justget7's instructable How to Make Rocket Candy4 months ago
    How to Make Rocket Candy

    Best Rocket Candy instructable I've read so far. It is detailed with specific information, & easy to follow. Good job! :-)

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  • How to Convert Water Into Fuel by Building a DIY Oxyhydrogen Generator

    If you collect the gases separately, you can then meter them into a better burning mixture. It's difficult to do with this setup, but you'd need something like an inverted beaker over each plate to separately collect them.

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  • How to Convert Water Into Fuel by Building a DIY Oxyhydrogen Generator

    ***...that should be a pre-OXIDIZED fuel...

    I apologize for all the typos; this phone seems to think it knows "what I'm trying to say" instead of just repeating exactly what I type, lol

    Grumpy, the Hydroxy gas is "taking up space" that used to be dedicated to air in the intake, thereby changing the stoichiometric ratio of the gasoline, and thus negating any gains you might have received by using the Hydroxy. The only way to "add" the gas to the engine is with positive pressure (ie, boost) instead of just letting the engine pull it in...I hope that makes sense; if not, please let me know & I'll try to explain it better...

    I'm sorry, but all 3 of your answers are wrong, uneducated guesses...1-Oxyhydrogen *IS* the proper name of the gas produced by water electrolysis: https://en.m.wikipedia.org/wiki/Oxyhydrogen2-"Hydroxy"gas *IS* indeed a proper nickname for said gas: https://en.m.wikipedia.org/wiki/Hydroxy3-Water (vapor) *IS* indeed a byproduct/result of burning said gas: http://hydroxyenergy.com/index.php?dispatch=pages.view&page_id=7(It is also just about the cleanest burning fuel there is).Although I already knew all of these, a quick 15 sec Google search confirmed them. Please at least attempt to research before making bold statements that could be (embarrassingly) false. :-)

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  • PaulA23 commented on carkat's instructable Fail: a Full Tilting 3-wheeled Cargo Bike6 months ago
    Fail: a Full Tilting 3-wheeled Cargo Bike

    So completely NOT a fail!!! Too many instructables are just "TADA! Finished product!" without giving the readers an idea of the difficulties and lessons learned in the project. The finished product is only a tiny portion of the reason(s) we enjoy these articles; the road is MUCH more informative than the destination. You materialized your concept into reality, learned some things, and COMPLETED THE PRODUCT (huge hurdle for many). This is the epitome of successful R&D - I applaud you, thank you, and encourage you to continue; you're only one moment of enlightenment away from the next big idea/design that no one else has thought of, and the world of cycling is a huge one. Excellent job!

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  • PaulA23 commented on randofo's instructable Telepresence Robot: Basic Platform (Part 1)6 months ago
    Telepresence Robot: Basic Platform (Part 1)

    Finally!!! An awesome instructable using the tried-and-true tinker methods we enjoyed before the 3D printer explosion!!! Sure, 3D printers are awesome, but so much ingenuity is lost when you can just materialize your parts. Great instructable! :-)

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  • PaulA23 commented on rachesv99's instructable Bluetooth Headphones Conversion1 year ago
    Bluetooth Headphones Conversion

    I was in the US NAVY for several years as an Aviation Electronics Tech, but I can promise you that I've learned more from "learn as you build" than any electronics teaching I've ever had!! :-)I've converted several old headphones to Bluetooth - in fact, many friends & family laugh because I'm always saying "hey, let's put Bluetooth on it" almost every time I see something electronic, lol! The charging port & amplification issues are valid concerns (mainly due to charging polarity & speaker impedance), but let's face it: if the speakers or electronics get fried, then you've already gained more in knowledge & experience than the ~$10 cost of the project. :-)If you do version 2, I suggest using the internals of a Bluetooth speaker instead of the hands-f...

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    I was in the US NAVY for several years as an Aviation Electronics Tech, but I can promise you that I've learned more from "learn as you build" than any electronics teaching I've ever had!! :-)I've converted several old headphones to Bluetooth - in fact, many friends & family laugh because I'm always saying "hey, let's put Bluetooth on it" almost every time I see something electronic, lol! The charging port & amplification issues are valid concerns (mainly due to charging polarity & speaker impedance), but let's face it: if the speakers or electronics get fried, then you've already gained more in knowledge & experience than the ~$10 cost of the project. :-)If you do version 2, I suggest using the internals of a Bluetooth speaker instead of the hands-free kit. The electronics are still fairly small, but give you a better amplification circuit for the impedance (resistance) of your headphone speakers. Most cheap ones combine left & right into a single channel, but it's fine for headphones, & you can buy them for $10 USD new @ Big Lots & WalMart (or your local "super" store). As for charging port, you can use a small audio jack, then re-use the old headphone cord as the charging cord - USB 2.0 charging spec is only 2.5 Watts (500mA @ 5Volts). :-)Excellent job - you made your idea a reality, & that's what matters!! :-)

    Most headphone speakers are more on the order of 16->32 Ohms, so lack of volume would be more prevalent than distortion (overdrive). However, the high impedance could definitely cause the preamp to lose its magical blue smoke if the input signal is driven too high, but since it's an isolated, self-supplying circuit (not hardwired line in, but 2.4GHz carrier + audio signals decoded to "line in"), that's unlikely to be an issue here. :-)Hopefully I can get my synchronized Bluetooth surround sound speakers working soon - synchronizing the signals is HARD... :-)

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