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  • 12 Volt 50 Amp Bench Integrated Power Supply

    even simpler is utilizing the biggest transformer type battery charger you can find. Replace the (usually) single diode with a diode bridge and optionally a pi filter. If you put a 5A or so variac on the input you will have an infinitely variable, isolated power supply - up to the chargers output voltage or depending on variac winding, 20% more. I grew up making these.

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  • itsmescotty commented on S Marston's instructable Make Your Garden Forgettable1 week ago
    Make Your Garden Forgettable

    I don't need anything to make my garden 'forgettable', I forget about it every day, sigh.

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  • 10 Woodworking Tricks the Pros Use

    no one mentioned it so here goes. Cutting plywood requires a seriously sharp blade to prevent tear out on the top side of the board when using a circular saw or bottom when using a tablesaw. Simple solution is using a utility knife for your line. Cut into or in most cases thru the veneer then cut your board in such a way that the blade cut is on your drop. The knife cut you made will prevent the veneer from tearing on yout finish side. Should you want both pieces, score two lines and cut between. It's the only way I I cut plywood. AND, if you want a fine line and never want to sharpen a pencil - use the utility knife for layout.

    I just use sharp drill bits Also, you can place a piece of scrap under what you're drilling thru. Then there is tape.

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  • Brilliant Angle Nail Trick From Old Carpenter

    Like I said earlier, I don’t toenail, forgot to mention ALL of my fasteners are Hidden. Rather than toenail when framing I nail a block on the backside, then nail to it. If all else fails I dowel then toe. I had a high end high dollar Trex deck to fabricate and install years ago. I made my own pocket screw jig (I have the metalworking tools to do I) specific to this project. Having worked as a marine carpenter on high end yachts I’ve become pretty ingenious when it comes to hiding fasteners.

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  • itsmescotty commented on FrontierShed's instructable Landscape Rock Tumbler2 weeks ago
    Landscape Rock Tumbler

    for those without access to a friend's cement mixer a barrel can be used - plastic or steel (plastic is quieter). A pair of parallel axels with self aligning bearings on each end with a couple of wheels on each axel. A motor with sized pulleys to turn one axel and you're in business. I've made a couple. If the barrel has a lid it can be laid flat. If no lid it has to be at an angle with a fifth wheel on the low end to keep it in place. Don't have pics otherwise I'd include them. Interested? PM me and I'll reply with mockup pics.

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  • Brilliant Angle Nail Trick From Old Carpenter

    I DON'T toe nail. There is almost always a better way to fasten. Kind of like Mac and PC debate That said, if toe nailing and this works for you, go for it.

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  • itsmescotty commented on MaxPower1977's instructable How to Make a BBQ Burner4 weeks ago
    How to Make a BBQ Burner

    My experience!!Unless you HAVE TO HAVE SS I'd just use black pipe and thread the ends and a pipe cap instead of flattening and welding. Pipe nipples and by the foot threaded pipe, - any decent hardware store. If thicker is better, schedule 80 pipe - last forever Not necessary to preheat that size of cast iron - thick castings, yes. In a pinch you can use 70 series wire on cast, especially small stuff like this. Drilling SS, slow speed lube and more pressure than steel.

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  • itsmescotty commented on a-morpheus's instructable Undead Pan1 month ago
    Undead Pan

    Good for you! I would have done it significantly different but only because I could. The main cause of cast iron pots and pans 'death' is high temperature cooking and lack of care. Same as nonstick

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  • itsmescotty commented on mikeasaurus's instructable Unusual Uses for Magnets1 month ago
    Unusual Uses for Magnets

    Really, Jessie?If I were to employ some of the many endeavors I have been involved with towards correcting Instructable authors, I would be hours over my morning coffee. Just let it be. You must really cringe when you read a non native English speaking author OR someone who doesn't have a degree in lit., sigh.I'm betting I could make you cry by going colloquial.

    for all of you that use a magnet to pickup a lot small objects at one time, a good idea is to put the magnet in a plastic bag so you don't have to pick the small stuff off the magnet - especially if they are filings or drill chips.

    Really, Jessie? If I were to employ some of the many endeavors I have been involved with towards correcting Instructable authors, I would be hours over my morning coffee. Just let it be. You must really cringe when you read a non native English speaking author OR someone who doesn't have a degree in lit., sigh.

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  • itsmescotty commented on Asier Marzo's instructable Acoustic Levitator2 months ago
    Acoustic Levitator

    Impressive! Read the white paper on the why and how it works. If I had a use for one, I'd build it - so simple. If I had a kid I would definitely help to build one for a science fair, would go a long way towards first prize. So many principles to expound on, great teaching/learning experience. Thanks for sharing.

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  • itsmescotty commented on VladoM's instructable Build Big Cnc at Home 3x2m2 months ago
    Build Big Cnc at Home 3x2m

    kinda wrong about the welding aspect. Sure, if you do a 100% weld immediately without clamping or bracing it will warp. On the other hand if you tack all four sides then come back and put a 1 or 2cm weld on a side and the same on the opposite side you should be good to go.I welded almost 8cm thick steel missile tubes to almost 10cm thick steel submarine hull, the diameter was greater than 2m and I kept the center of the tube within a few mm of true. I used 50 kilos of welding wire each shift and it took weeks to complete.

    kinda wrong about the welding aspect. Sure, if you do a 100% weld without clamping or bracing it will warp. On the other hand if you tack all four sides then come back and put a 1 or 2cm weld on a side and the same on the opposite side you should be good to go. I welded almost 8cm thick steel missile tubes to almost 10cm thick steel submarine hull, the diameter was greater than 2m and I kept the center of the tube within a few mm of true.

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  • Home Carbonation System for Water, Beer, and More

    Different colors of tape for different operations UBC, (Building Code) like PVC cement. Makes it easy for inspectors. Otherwise, teflon tape is teflon tape. It's a lubricant not a sealer regardless of color. Think pipe dope - it's all about easily getting the tapered threads together as far as they go. TT is not used on straight (normal) threads. Straight threads use washers, 'O' rings, flairs and ferrul

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  • itsmescotty commented on lingib's instructable How to Cut & Fold Sheet Aluminium2 months ago
    How to Cut & Fold Sheet Aluminium

    Shonuff!The remains of a sheet I have can only be bent on my box and pan break. Need saw to cut, its HARD.

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  • DIY Short Circuit (Overcurrent) Protection

    not beyond my capability to make but...Is this limited to 12vdc? Is it capable of being scaled for use with a 30vdc LED for example.

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  • itsmescotty commented on JackmanWorks's instructable Turning a Cement Pen (no Lathe)2 months ago
    Turning a Cement Pen (no Lathe)

    Just a suggestion for future exploration:Purchase some cement patching material, the type that's been mixed with vinyl. Obtain some CSM (Chopped Strand Mat) or shreds some fiberglass cloth. Mix the patching with the fiberglass and throw in a bunch of crushed (colored) glass. The patch material is sticky as snot, the fiberglass adds unilateral structural strength and the glass adds 'bling' as well as aggregate to give surface area bonding to the cement.

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  • Unusual Uses for Broken & Dull Drill Bits

    I've been grinding drill bits since high school (a long time ago) and about 10 years ago I said enough and got a drill doctor and spent a couple hours going thru my need to sharpen (but later) drawer and sharpened bits. Was real proud of myself for a job well fine UNTIL I used them. Took the drill doctor back and resharpened the bits by hand. Only thing better is a CnC machine.

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  • itsmescotty commented on LabRatMatt's instructable Hybrid Rocket Engine3 months ago
    Hybrid Rocket Engine

    Doesn't negate the dangers of getting out (or staying in) bed. Life is dangerous, it's how you chose to live it. I'll bet you have a problem with commercial divers that place their lives in the hands of a person rubbing the dive station and the support equipment. Think about being 170m underwater knowing your life hinges on dozens (or more) variables. This simplistic 'rocket motor' would probly never fly because of the weight and an ancillary oxygen tank. Having been a missile technician in the navy and a deep air/mixed gas commercial diver I have some experience.

    really?? Getting out of bed is dangerous, the bathroom floor might get wet after your shower and you could fall. Driving in your car = possible accident. Your phone could explode. Come to think about it staying in bed could be dangerous, bedsores, lack of exercise means fat which is bad for your circulatory system leading to heart problems - the lists for both options are endless! The leading cause of death in the world is living!

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  • itsmescotty commented on wold630's instructable 3 Ways to Crack an Egg3 months ago
    3 Ways to Crack an Egg

    oh my, I've been cracking two eggs at a time since forever. One egg in each hand, crack and empty in bowl (unless I only need one egg). I thought everyone did it with one hand.

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  • itsmescotty commented on noahw's instructable How to Weld - MIG Welding3 months ago
    How to Weld - MIG Welding

    And cast iron. It's all in the wire you use. Geez, you can even weld cast with 70 series wire tho cast is better or a nickle content wire.

    MIG welding can only be used on thin to medium thick metals.Interesting that you think 3" and 4" are considered medium thick metal.Don't know about now but the Los Angeles class submarines had a lot of hull sections and missile tubes MIG welded.

    Not correct. It's the oxygen that causes oxidation, the hydrogen that causes cracking and considering there is an argon/CO2 mix What the hell are you talking about?

    Congratulations, I'm happy you use argon with your flux core wire. Too sad tho that without it you can't weld. You have a problem and couldn't work for me. ONLY reason to use flux core wire is in a drafty area.

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  • Concrete Countertops for the Kitchen - a Solid Surface on the Cheap

    and incredibly expensive. Corian is next to impossible to obtain for DIY and some of the other material cannot be thermoformed.

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  • itsmescotty commented on scoochmaroo's instructable Krispy Kreme Donut (Doughnut) Recipe3 months ago
    Krispy Kreme Donut (Doughnut) Recipe

    when I was a kid my Mom made glazed donuts frequently and now she says I should make them, sigh. I'm going to give this a try!I remember when Krispy Kreme opened in Virginia, it was a blessing!

    Ya gotta love the experts, 'the I know, I was there, the ones that know the secret recipe. . . '. This commenter probly worked the counter and never ev saw the flour. This is going in/on my bucket list for a quick resolution

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  • itsmescotty commented on mikeasaurus's instructable Simple Wood Salad Servers4 months ago
    Simple Wood Salad Servers

    THANK YOU for not saying wooden! No one says steelen when they fabricate something using steel or plasticen when they use plastic so why wooden?

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  • itsmescotty commented on taifur's instructable $5 IoT Pill Bottle4 months ago
    $5 IoT Pill Bottle

    Yeah, but. 5 pills in the morning and 4 night - not really a working scenario.

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  • How to Break Down Sheet Material Easily!

    you forgot proper training and preferably a two week course and certification, hard hat and steel toed shoes. Oh yeah, over 21 years old, not on any medication that can impair your perception and no drugs or alcohol. I think I covered everything else, sigh.

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  • DIY Shop Built Flip Down Panel Saw for Under $50 in an Afternoon

    I might have missed reading that this is for a small shop/garage with little or no wall space ?

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  • itsmescotty commented on mikeasaurus's instructable Unusual Uses for Vaseline5 months ago
    Unusual Uses for Vaseline

    HEAT IS REQUIRED but the temperature required for combustion is considerably lessened. Fire triangle: Heat, Oxygen, Fuel. As for RUBBER 'O' rings they are probly not even made anymore. Most of what we call rubber is synthetic. Way back when they used real rubber for windshield gaskets there was a need for some kind of moisturizer necessary or the rubber dried out. I have had the unfortunate experience of lubricating an 'O' ring and had it swell so much I could no longer use it - obviously wrong lubricant. Try using brake fluid on a non nitril ring or pump gasoline with one of those drill motor pumps, there will be an almost immediate failure.

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  • itsmescotty commented on Black Beard Projects's instructable Nut Ring, Manly Design!5 months ago
    Nut Ring, Manly Design!

    Beat you to it, smile. FBM early 70's, stainless steel with lots of filing and sandpaper.All started with an auxiliaryman then kinda spread with the help of the RPPO's supplying the nuts. Another patrol, I made a macrame hanger with half a mile of string. Each Josephine knot took three minutes to tie when I started!! Sat in middle level misled and let the string hang down in a pile in lower level.

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  • itsmescotty commented on jimustanguitar's instructable DIY Carbide Lathe Tools for Cheap7 months ago
    DIY Carbide Lathe Tools for Cheap

    Checkout: http://www.carbideprocessors.com/carbide-processors/carbide-saw-tips-and-other-parts/standard-tool-blanks/They sell carbide in all sorts of sizes and shapes that you can solder/braze onto HSS (kind of unnecessary) or just cold rolled steel. You can shape/sharpen to your liking with a CBN or diamond wheel. When I was a kid I used defunct files and ground the ends to shape.

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  • itsmescotty commented on Moy perez woodshop's instructable Not Just a Spline Jig7 months ago
    Not Just a Spline Jig

    for drag reduction and maintaining full contact may I recommend HDPE https://en.m.wikipedia.org/wiki/Ultra-high-molecul...it's easily machineable and it's only drawback is it doesn't glue, needs to be mechanically fastened. If you have anything that slides this stuff should be attached to the bottom. Huge selection of scrap pieces (drop) are available on eBay or available online.

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  • itsmescotty commented on aridbennett's instructable Self Spinning Gyroscope7 months ago
    Self Spinning Gyroscope

    Beautiful piece of work!! and if I had the time and inclination I could make one with my manual mill and rotary table as well as drilling the 10 peripheral holes without the additional step of removing the piece and using a vise - like I said, a LOT of time.

    Energy in is always more than energy out so HUGE flywheel requires a lot of spinning energy once or twice a day. Also it can output only DC because (if AC) the frequency would change with the rotation speed. There are SO many arguments against that blokes spinning wheel power source I could go on for pages. Think water wheel.

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  • itsmescotty commented on Mrballeng's instructable Ductanium Bandage8 months ago
    Ductanium Bandage

    In my travels. . . First time around there were no doctors but I had some of the first generation superglue an it worked great - once the blood flow slowed enough to keep the sg from washing away. Second time, no doctors, no superglue, no lidocaine but I did have sewing needle and polyester thread. Skin is tough stuff, had to use needle nose pliers to push needle in and pull out! Now I know why suture needles are curved and have a triangular cutting point. I now own a couple suture kits.

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  • How to build an insanely bright LED flashlight!

    and if you got a xenon strobe. . . It's about what he did, not what he could have done. Could have used car and headlights - two settings, hi and low beam and could make it four by using a fresnel lense from trashed big screen tv over headlight as a diffuser. Total cost, zero

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  • Homemade Firepit from Helium Tank (No welding!)

    I'm betting your guy cut it with an oxygen acetylene torch and the cutting oxygen built up in the tank with, possibly, some Unburned acetylene. Read up on propane and you'll find it's one of the safest gasses. Requires a higher percentage of gas to oxygen than just about any other gas for combustion

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  • DIY Easy induction heater // DIY Aquecedor por indução fácil

    your schematics are a work of art and your printing is exceptional. I couldn't do that well when I took drafting in school..

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  • itsmescotty commented on KitchenMason's instructable How to Make Bacon Halloumi Bites9 months ago
    How to Make Bacon Halloumi Bites

    why not, also, give directions on how to make the halloumi as well. It's really easy. Where I live it wasn't possible - even at a Greek restaurant - to obtain halloumi so I went online and found how. Having my own goats was a plus but 'store purchased' milk works as well and as a bonus you can make ricotta after you've made the halloumi.

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  • itsmescotty commented on Make it Extreme's instructable Extreme Scissor Lift Shoes9 months ago
    Extreme Scissor Lift Shoes

    Oh WOW, autogenous wellding, good for you. I do it all the time and get grief for it. Not always necessary to have 100% butt welds and if you have good fit up , it's great.

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  • itsmescotty commented on awall99's instructable Arduino Data Glasses For My Multimeter 10 months ago
    Arduino Data Glasses For My Multimeter

    I like the speaking idea also.

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  • itsmescotty commented on MikeTheMaker's instructable Pretty Useless Machine10 months ago
    Pretty Useless Machine

    Does ever so much better than my dog. I throw, she retrieves but won't bring back, sigh.

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  • itsmescotty commented on Phil B's instructable Twist Drill Sharpening Helper11 months ago
    Twist Drill Sharpening Helper

    In H.S. Metal Shop class when I learned to hand sharpen drill bits (and lathe bits) I had commercial gauges stamped from sheet steel for the correct angles necessary for cutting the appropriate materials. Grind and insert in gauge, rinse repeat until correct. Essential for threading on a lathe. Anymore I just eyeball it having sharpened thousands of drill bits over the years since.

    I purchased a Drill Doctor years ago thinking it would be quick and easy but found it worthless (MY EXPERIENCE) ended up redoing all the bits by hand after using the DD. For me it was a waste of money and time. It does however give me a proper center as a starting point for broken bits.

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  • itsmescotty commented on michael.j.feierstein's instructable Table Saw Rust Removal11 months ago
    Table Saw Rust Removal

    The orbital sander idea works but takes a lot of time and paper - I've done it. Another method, dangerous and not recommended is a 10" grinder with a recessed center hole totally flat on the metal surface, do not use the edge of the grinder. Dusty as hell! I've mitigated the dust by using a small amount of flowing water over the (removed) top. The result, because of the use of the 10" disk, is a 'like new' top - bright and shiny. And flat because of size of the disk. I've also used a cup grinding wheel with outstanding results. Last project I worked on I used a diamond cup wheel and copious amounts of water to keep the diamonds cool and eliminate dust. You will get messy.

    why bother with Naval Jelly when you can purchase a Fallon of phosphoric acid for $10 to $15. My Ace store sells it for $15 and HD for $10. I agree with the others that WD-40 has many uses but preventing rust is not one of them. If you believe in the stuff use it to clean oil or grease off a piece of steel (that doesn't have mill scale on it) and see how long it takes that piece of steel to rust.

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  • DIY Magnetic Hand-Saw Guide - Extremely Accurate Cuts!

    I grew up with something like what the link was but I'm thinking it was professional and not sears. Was in a box where the entire lid and 4 sides were removed to operate. HEAVY and really concise.

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  • itsmescotty commented on BertrandJ1's instructable Quick NFT Hydroponic System12 months ago
    Quick NFT Hydroponic System

    I have a suggestion for the water pump, the 12 volt windshield wiper pump from any automobile would work a treat - obtainable from a wrecking yard for free or very inexpensive. That's what I used for my sous vide setup.

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  • Industrial Isolation Transformer From Trash

    And plumbing? And driving? And welding? And glass cutting? And machining? And forging? And anything else YOU don't understand!

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  • itsmescotty followed R Jordan Kreindler1 year ago
  • itsmescotty commented on amandaghassaei's instructable "9 Degrees of Freedom" IMU1 year ago
    "9 Degrees of Freedom" IMU

    and by your own comment, why is it bothering you? And by, "don't have the right to not be offended, even if. . . " actually DOES give me the right, so make up your mind. 'No smoking permitted' actually means you have the right to smoke but you can opt out. I moved on days ago. Sounds like you're a person that permits anyone to do anything to anyone as long as it doesn't affect you and are remiss in social consequences.

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  • itsmescotty commented on amandaghassaei's instructable "9 Degrees of Freedom" IMU1 year ago
    "9 Degrees of Freedom" IMU

    and the purpose of your comment is???Ask me if I really care how many you've constructed - did you share any of them for anyone else to possibly learn from? Instructables is a place where people want to share accomplishments that they are proud of. Doesn't really matter if YOU have made more, bigger or better. Who are you to to defame someone else's (maybe to you novice) attempt at creativity?? My "trash" talk could go on but there really isn't much point. Let people have their moment.

    maybe she understood but I DIDN'T and most likely other people like me didn't either. You should PM comments like yours rather than post them communally.

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  • itsmescotty commented on seamster's instructable Tennis Balls in a Bottle (How-to!)1 year ago
    Tennis Balls in a Bottle (How-to!)

    Probably every sub that has gone to design depth after commissioning or yard period had a string party where a string is attached across the diameter of the boats interior and the crew newbies are amazed at how much slack is generated. I was on 640 class boats then built LA class at EB

    the neoprene hood on my KMB-10 is totally flat from repeated deep air and gas diving, used to be 1/4".

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  • Off grid LPG (propane) powered Battery Charger

    it's complicated but look at: http://digitalcommons.calpoly.edu/cgi/viewcontent....

    30 and a few years ago I was on my 11m schooner in the Seychelles. As a live aboard charging batteries was a chore. I loathed wind turbine chargers and who could afford solar cells so that pretty much left the diesel and alternator - really quiet but the cost of diesel!!! I had a 5hp diesel driven diving compressor and thought, why not? so I acquired a 5hp or so side shaft petrol engine and bolted the spare alternator to it and 'Bob's your uncle'. Once excited I dropped it down to idle and it just quietly ticked away for hours charging batteries and practically cost nothing. Did that for years in the Indian Ocean, Red Sea. Just wished I'd known about the propane conversion. Oh yeah, I did have a petrol generator that supplied 240VAC, 120VAC and 12vDC but the petrol cost and asso...

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    30 and a few years ago I was on my 11m schooner in the Seychelles. As a live aboard charging batteries was a chore. I loathed wind turbine chargers and who could afford solar cells so that pretty much left the diesel and alternator - really quiet but the cost of diesel!!! I had a 5hp diesel driven diving compressor and thought, why not? so I acquired a 5hp or so side shaft petrol engine and bolted the spare alternator to it and 'Bob's your uncle'. Once excited I dropped it down to idle and it just quietly ticked away for hours charging batteries and practically cost nothing. Did that for years in the Indian Ocean, Red Sea. Just wished I'd known about the propane conversion. Oh yeah, I did have a petrol generator that supplied 240VAC, 120VAC and 12vDC but the petrol cost and associated noise was prohibitive.I purchased a petrol engine yesterday to put an alternator on to charge vehicle batteries because my box charger died - how fortunate this showed up today as I have the electronics you used and will incorporate them Thanks for the build.

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  • itsmescotty commented on danthemakerman's instructable Kiridashi Marking Knife1 year ago
    Kiridashi Marking Knife

    The one on my $2000 Delta, purchased in 1989 only lasted a few days before being removed as well as the Blade guard. One of the uses of my saw is to resaw the boards from my saw mill. I rough cut to the full size with the mill then resaw and plane to conventional size. 20' boards are no problem. I can sharpen my blades so dull isn't in my vocabulary and at the correct feed rate and blade height there is no kickback - at least for me.

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  • itsmescotty commented on TheFieryTV's instructable HOT ICE1 year ago
    HOT ICE

    already know how to make atomic bomb, went to bomb school while in the military. Easy if you can obtain appropriate nuclear material. The rest is machining, placing of low order detonation devices and timing.

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