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  • Worlds Largest Bladeless Fan DIY Guide

    They vary a lot. The thing with ringjets is that they rely on a small volume of high speed air to shift a large volume of lower speed air. In the case of one as large as yours the volume of the inlet air is quite high. perhaps a squirrel cage centrifugal blower would be best? These can have a reasonable pressure differential which is one of the reasons they are used in dust extraction. Some links to a local trading site to give you an idea:BULKHEAD BILGE BLOWER 90 CFM | Trade MePremium grade Inline 100mm Engine Blower | Trade MeIN-LINE Engine Blower | Trade MeBLOWER DUST SAWDUST | Trade Me I hope that helps with some ideas.

    The Coandă effect has always fascinated me as well and ringjets used as conveyors are super cool. Love the scale. Not sure how the volume would match up but I have used cabin blowers,(as used to ventilate boat engine rooms),both centrifugal and axial for various things and some of them flow a lot of air.

    P.S. I almost forgot about this: http://www.floweringelbow.org/projects/the-cyclone-dust-separator/ Look at the RH side of the page and you will find links to a build project that has a LOT of good information. This project is based on information from the wonderful Bill Pentz : http://billpentz.com/woodworking/cyclone/build_cyclone.cfm His site will tell you all you need to know about building a centrifugal blower

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  • Wood Carving Knife Set

    Great job of making your own tools but PLEASE work safely and remember that many people reading Instructables have no prior knowledge of tools. IF you are constrained to just an angle grinder then make a secure stand for it if you want to use it in ANY manner that it was not designed for. Angle grinders can and do cause horrific injuries when used incorrectly. Get a bench grinder for hand shaping. On a technical not power hacksaw blades are usually high Carbon steel not 'tool steel'. Circular saw blades if the teeth are cut directly on the blade are usually M2 High Speed Steel,(HSS), the stuff good quality drill bits are made from. Circular saw blades that have cemented Tungsten Carbide teeth can be medium Carbon steel or an alloy steel, HSS or Stainless Steel,(SS),usually 304. …

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    Great job of making your own tools but PLEASE work safely and remember that many people reading Instructables have no prior knowledge of tools. IF you are constrained to just an angle grinder then make a secure stand for it if you want to use it in ANY manner that it was not designed for. Angle grinders can and do cause horrific injuries when used incorrectly. Get a bench grinder for hand shaping. On a technical not power hacksaw blades are usually high Carbon steel not 'tool steel'. Circular saw blades if the teeth are cut directly on the blade are usually M2 High Speed Steel,(HSS), the stuff good quality drill bits are made from. Circular saw blades that have cemented Tungsten Carbide teeth can be medium Carbon steel or an alloy steel, HSS or Stainless Steel,(SS),usually 304. Working with Mysterium is always fun and often the Mysterium needs to be annealed before you can work it and then re-hardened or heat treated before finishing and use. Metallurgy remains part science and part magic which is part of the allure of metal.

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  • Gofish commented on DanPro's instructable Socks the Old Way on a CSM
    Socks the Old Way on a CSM

    My feet started to ache with longing.

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  • Pallet Wood Pencils (1,000 of Them!)

    Who uses a pencil? I am an Engineer and always carry a 6" scale, pen, couple of pencils, 5 cent notebook in a plastic bag, a 10' piece of string and a sharp pocket knife. I buy pencils in packs of a hundred. A pencil will work on nearly anything under just about all conditions, does not permanently contaminate surfaces, on many surfaces can be rubbed off and adjusted, is super handy for making notes on an item and doing quick calculations,(usually on an item). Some things are so good there is no real alternative.

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  • Drill Press Conversion to Brushless Setup

    Loop has it right. Starter capacitor has failed or if it is centrifugally switched to contacts are dirty or sticking.

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  • Gofish commented on RCEM's instructable Far From Home Pineapple Lumps
    Far From Home Pineapple Lumps

    OOPS! [hand over mouth] I'm sorry : o

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  • Gofish commented on RCEM's instructable Far From Home Pineapple Lumps
    Far From Home Pineapple Lumps

    Oh Dear, you have let the Cat out of the bag. Great work but I am disappointed that you did not specify the worlds greatest chocolate - Whittakers. Whittakers.co.nzI would suggest my favourite,Dark Ghana would be the perfect coating.

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  • Arduino Bandsaw Speedometer

    Knowing what your blade speed is is vital. I sometimes work with Nickel and Iron based alloys that need around 45 - 50 FPM with lubricant/coolant with a bi-metal blade. Occasionally I end up on a Sunday evening with nought but a Carbon steel blade and need to drop to around 15 - 20 FPM. Most Woodworkers have no idea just how slow blade speed needs to be for SOME materials, hole saws are the classic example. Good article.

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  • Brass Casting With Sand Cores

    Very well written article. It never ceases to amaze all the various techniques different people use to arrive at the same end. Like GregS278 I would have loved to see the casting after cleaning and fettling but no doubt that is in you friends hands. He's lucky to have a mate like you.

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  • Time and Date of Satellite Maps

    Great exercise for the school holidays. very well written.

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  • Making a Racing Motorcycle Chassis

    Thank you so much sharing some of your techniques, greatly appreciated.

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  • Hello AMbros Custom, I agree that where it broke is a very high stress area and by the look of things you like to make stuff bulletproof! That was an excellent repair/rebuild. My comments re: welding. Bronze welding with Tobin Bronze and a Cast Iron flux was the best means for many years and good Bronze is at least as strong as steel and tougher with a higher modulus of elasticity and like all welds needs proper joint preparation. Old cast iron piston rings make good filler rods for gas as they have a fairly high % of Nickel and Silicon. I've found the key to a good Cast Iron weld is joint prep, pre heat and post heat and peening, an air chisel with a needle scaler works well. Brazing is far too weak as the grain structure of Cast Iron and the fre…

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    Hello AMbros Custom, I agree that where it broke is a very high stress area and by the look of things you like to make stuff bulletproof! That was an excellent repair/rebuild. My comments re: welding. Bronze welding with Tobin Bronze and a Cast Iron flux was the best means for many years and good Bronze is at least as strong as steel and tougher with a higher modulus of elasticity and like all welds needs proper joint preparation. Old cast iron piston rings make good filler rods for gas as they have a fairly high % of Nickel and Silicon. I've found the key to a good Cast Iron weld is joint prep, pre heat and post heat and peening, an air chisel with a needle scaler works well. Brazing is far too weak as the grain structure of Cast Iron and the free Carbon does not allow a proper bond. At the end of the day your fix was permanent so time well spent.

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  • Welding Cast Iron is done every single day. Very common in foundries. Cast Iron can be gas, TIG or arc welded and Bronze welded using gas, TIG or MIG. Preheat and post heat are recommended.

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  • You might be interested in this channel by a bloke up the road:https://www.youtube.com/channel/UCThY8lOKKkVDd9HVBT59zCg

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  • Gofish commented on sbkirby's instructable Drill Press Laser Guide

    Given failing optics I can see one of these on my small pedestal drill. Nicely done.

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  • Gofish commented on SEB TECH DIY's instructable Dust Collector ARM

    Thanks, I need to build something for my lathe and mill, at the moment just a jury rig. Using a fogless mister with oil I am running through a Thein collector with a couple of layers of fine mesh across the bottom chamber a few inches of the base which allows the oil to drain overnight for tapping off and reuse.

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  • Gofish commented on Ham-made's instructable Musical Chair

    Any chance of getting Justin Johnson to play?

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  • I love seeing items used for a purpose other than they were intended for. I have filed this under misselanious in the back of my mind. Thanks.

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  • Great instructable. Electronics stores sell a variety of battery terminals and good quality wire.

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  • Gofish commented on fixxit's instructable DIY Vehicle Tracker

    Excellent Instructable however I would point out that a system from a crowd like Automatics Trackers gets an insurance discount that just about pays for it plus cheaper premiums plus has international coverage and as the company works with just about every police force and Interpole, has dedicated recovery agents in nearly every country and about a 98% success rate is well worth the cost. Friend just had his digger stolen along with the trailer and most of his tools, very much regretting not fitting a tracker plus marking with a system like Select DNA. Anything to stop a thief and bring them to justice is good but removal of the hands and feet is a good start for 'bike thieves.

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  • Copper/Phosphorus brazing rods are specifically formulated for Copper pipe and are not attacked by anything that will not attack Copper plus the joints won't crack if you have been lazy and not properly braced your pipes and get water hammer. They are low melting temperature. Next step up is one of the Silver solders like Easy Flow. A low temp solder will work fine if the water does not contain some types of minerals and is fairly neutral. It pays to check your water before you order materials as the best job in the world can get wrecked real fast under some conditions. Very nice soldering job. Good instructable.

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  • Gofish commented on supersvein's instructable Cast BBQ Wheels

    A lot of good information but seriously Crocs and Socks? I had a friend years ago lost both feet due to not wearing splash spats and leaving his boots unflapped when a crucible broke.Please take all precautions when working with hot metal.

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  • Very cool. I hope you had some music by Wintergaten playing as you made it.https://www.youtube.com/watch?v=IvUU8joBb1Q

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  • Gofish commented on charliecadin's instructable Wine Cork Surfboard

    You also could have used a nice cotton print instead of glass and there are Epoxy resins derived from plants which are as good as,(in some cases better than),oil based Epoxies.

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  • A tool such as that posted by ClintC15 works great but lazy me likes to use an air chisel with a wide blade to seperate things then I work along with two flat wrecking bars. Very little work by me and very fast. Great to see the the emphasis put on removing the nails. Tip: use two hammers instead of pliers for straightening. I'm very lucky living on the edge of an industrial area and a lot of clean pallets get put out. After a few years of saving I've invested in a thicknesser so every now and then I will run a hundred or so boards through, so nice to be able to just grab some wood when you need it. A biscuit joiner on sale last year has made more projects possible.

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  • There are plans for vaccume pumps using old fridge pumps here on Instructables. I use one for degassing resin and for resin infusion in wood and you would probably only need to pull 10-15" water.

    I thought the same thing 210F is 98.8888C so should work. Pressurized boiling would raise the temp so a steam bath should work.

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  • The traditional gunstock finish was hand rubbed raw Linseed oil and warmed in front of a fire. The heat speeds up polymerisation, with gunstocks beeswax was often used after the oil. Tung oil 'dries' faster and harder, boiled Linseed oil has added driers and one is commonly Tung oil. Oil finish is my preference on a gunstock as it looks and feels nice and is easy to repair dings.

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  • With regard to the noble art of scrounging shipping frames of all descriptions are available at little to scrap value cost from many sources. Best approach is at the shop floor level. TIP: NEVER leave a mess! I take a yard broom & shovel and clean up after dismantling and clean up any other mess as well. Leave a place cleaner than when you arrived and you will be welcome back.

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  • Gofish commented on barclay5426's instructable Sculpted Oak Desk

    That is one of the most beuatiful pices of furniture I have ever seen. Don't do anything else to it!

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  • As you stated this method may be suitable for some jobs and you have pointed out where cutting and fabricating from separate pieces would be better. I would like to make a suggestion for your press brake - ditch the springs and alignment pins. I have made these for putting curves in 10 mm plate and welded a collar on the finger to mount on the spear and then seated in the trough before bending. You can sneak up on a long bend by working along a line.

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  • Gofish commented on ShakeTheFuture's instructable Tin Can Hole Saw

    Looking at this cost/benefit wise I'd be inclined to purchase a quality adjustable hole cutter as these can cut a variety of materials including sheet metal. A common size cuts from 1.5 - 7.5 inches. Hole saws are better but if you rarely use may not be worth the investment. Like others thumbs up for those loverly saw teeth.

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  • I've been hand sharpening for over 40 years so get a pretty good edge.In your video you are using exactly the opposite motion that I do on a wheel. Using a belt I use an alternative method which is to hold the bit orientated with the cutting edge almost vertical and the bit slightly rotated and angled then plunge cut. Much easier to do than describe. Take a new bit and hold it with the face on the stationary belt to understand. This is how bits are sharpened in a factory when manufactured and the easiest way to sharpen small bits.. Large bits.(1/2" up), are better sharped with the rolling method.

    AIM47, Just a little practice and you will find drilling a pleasure. Also it is easy to change angles for different materials and with practice split-point the bits too.

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  • Gofish commented on dohoss's instructable How to Ranger Roll a T-Shirt

    The only advantage comes when packing a backpack. Same with socks,(although with socks you are keeping a pair together),rolled T-shirts are easy to stuff in. In a draw flat folding is the preferred option.

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  • Great Instructable. Isopropyl Alcohol is easy to get and is not diluted like Methylated Spirits,(Methanol),nor does it have additives to prevent consumption, but don't drink it bacause it is poisenous!

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  • Excellent build and a great instructable.

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  • Gofish commented on eamonwalshdiy's instructable Shock Absorber Stools

    I would suggest using gloves when using a grinder and/or handling steel, riggers gloves are good. I would would also STRONGLY recommend wearing a dust mask when grinding as grinding produces metal and carbide particles in suspension in the air,(the glitter you see in the air in sunlight),this can cause Silicosis which will not only shorten your life but give you a decreased quality before you die.

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  • The Gods must love you for building this, the odds against finding that T.V. must be phenomenal! Even higher when you consider that It would have been an expensive 'state of the art' item when knew.

    The Gods must love you for building this,the odds against finding that T.V. must be phenomenal! Even higher when you consider that It would have been an expensive 'state of the art' item when new.

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  • I guess that the photograph though excellent does not do justice to the view in sunlight. You have done an amazing job. Thanks for the paint info.

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  • Ahhh.... The '60's and early '70's when a man could do what he wanted with his ride and we were soon all going to be flying around like the Jetsons. Great job on the wheels and I love the paint, that Yellow is gorgeous!

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  • Amazing! I think Kim Jong Un has a job offer for you.

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  • There is a You Tube video of a neat tool a guy has made with a bit of steel plate, a pipe fitting and a pipe. I'm thinking of making one for when I am far from home.Very like a 'Pallet Pal' but with only one blade which allows the removal of boards from the center of the pallet.

    As one of the proletarians I am permanently broke and by nature a scrounger. I am also lazy. The quickest way I have come up with to dismantle a pallet is with an air hammer fitted with a wide chisel blade and two pry bars like the one pictured. Lift the ends slightly with the chisel then the center and finish working off with the bars. I work on two folding tables and it takes under ten minutes a pallet at my slow pace usually with no damage plus I save all the nails and take them to the scrap yard for beer money.

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  • I did this sort of repairs for 40+ years and have amassed a fair amount of tooling but had forgotten how daunting these problems are for some. You did a very nice job in the easiest way hopefully inspiring others to 'have a go'. Thumbs up!

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  • Great for Guitar repairs too.http://www.frets.com/HomeShopTech/hstpages.html

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  • Fits the decor perfectly. Something to be aware of is that wooden pallets are untreated which is fine for interior use if you don't have nasty insects. Deck oil works well.

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  • Excellent quick fix when you run out of threadlocker. In another comment "bash the bolt" was mentioned, the correct term is 'staking' and should be done by placing a center punch just in from the visible mating line of nut and bolt,(over top of thread), and striking a sharp blow. The nut will not vibrate loose if torqued correctly and can still be worked off. Standard industry practice since nuts and bolts were invented.

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  • Your use of extruded Aluminium section is far superior to welded Steel box section, excellent comprehensive description. The inclusion of safety advise and some chilling statistics on chainsaw injuries hammers home just how dangerous chainsaws can be. You should win a prize for this! Thank you.

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  • Hot water,scrub,rinse and coat post before and after terminals fitted with Petroleum jelly,(*Vasoline).

    Nut breaker if applicable. Good article. Heat and candle wax is one of the best as Paraffin candle wax penetrates rust when heated and also lubricates . Homemade penetrating oil. I remember when Acetone entered the formula in the Eighties previously it had been 50/50 ATF & Kerosene. The problem with Acetone is that it evaporates very rapidly. Kerosene by itself is a great penetrant,(used to be called No.1 Diesel),adding 10-20% Isopropyl Alcohol the the above mixture will speed up penetration but must be kept in a closed container. I liked that you made the point of 'rocking' a stiff fastener back and forth is a good idea, so many people try to force something to move too far beyond the 'sticking point' instead of gently working it loose.

    Heat bolt heads red hot with a torch, rap with a hammer and undo. Occasionally dropkicks use the wrong type of Loctite on bolts. If rusted in heat, and candle wax. May take a few goes, sometimes over days. Patience & time does pay.

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  • Tuomas, awesome as usual. JamesB670, Try a French Curve on paper, glue paper to steel, center punch outline and use drill, grinder,hacksaw,files and Emery boards if you don't have a bandsaw. MS is fine as no great loads. Could case harden if wanted or use 1045 or better and direct harden.

    Hi Tuomas, Another great presentation. JameB670, Tuomas has a You Tube channel and watching some videos will show that Tuomas has 'mechanical sympathy' in that he can imagine great ways to use tools and simple means to achieve what he wants. If like me you are confined to using scrap you can generate very accurate surfaces with a file and Emery boards. 1045 or better,(cut down bolts), would be good for pins all else MS as no great stress or impact loads. Draw template on paper with French Curve, glue to steel, mark outline with center punch and drill, cut ,grind and file. A bandsaw would be great.

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  • MATE! I love it. only change I'd make would be a bent link for the steering up and over front wheel to keep narrow.

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  • Gofish commented on TueBjørn's instructable 100W LED - Flashlight

    Wouldn't liquid cooling be far more effeicient?

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  • Gofish completed the lesson Cutting in the class Metalworking Class
  • Epoxies do not affect Closed Cell Polystyrene foam neither does Polyester resin. Most problems come from people adding Acetone to 'thin' the resin to spread it easier.

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  • Excellent instructions, thank you.

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  • Gofish commented on MelEdge's instructable Really Nice Miter Sled

    Some angle lines and it would be perfect.

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  • So true, so true. Good knives are the most precious of things.

    Great Instructable. My only problem would be accumulating the bottles as I avoid plastic packageing where I can. I do machine items out of HWMPE often though so I will start collecting.

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  • Gofish commented on tanner_tech's instructable DIY Induction Heater

    Very handy for shaping/hardening small tools such as Gravers. Thanks for posting.

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  • I have a pan & box folder so don't need this but it would be great for occasional light use, well done. Could I suggest that the use of 'lift-off' hinges could be of use if folding a box for example, this would allow the blade to be removed.

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  • Gofish commented on mikeasaurus's instructable Tape Measuring Tool

    Forgot to add that I often need to scribe a radius and this idea will make life much easier.

    What a great idea. I don't have a 3D printer but am going to copy in Aluminium.

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  • Gofish commented on kinte ryder's instructable Desktop Water Fountain

    I love vortex's and could watch them all day. Up here ours naturally go clockwise viewed from the top and I think a lot more thought should be put into enhancing nature than fighting it. Your project is a great way to contemplate what happens in nature and observe a phenomonone.

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  • The lines that constitute the triangle will only line up one way and only if the correct pieces are in the correct place. Start using this method and it will become automatic. Saves many,many fopars aye?

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  • I feel like rushing out to buy a CNC mil to have a go. I repair old machinery and making tiny gaskets by hand is a P.I.T.A.

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  • The large item in the photograph is a vise. A pair of 'vice-grips' are a pliers like device with locking jaws also a brand name. You grip IN a VICE and WITH a pair of VICE-GRIP PLIERS.

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  • Are you sure this was a first time restoration? Beautiful job and great to see a nice machine put back in action.

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  • Excellent re-power. Can I suggest use of a roll-pin through the V-pulley to lock everything together. You could also fit a Woodruff key for extra drive

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  • Something that millennials don't know about. A thing made out of paper with words printed on it. Often printed daily so that news and opinions are up to date after facts are checked to see if what is on interweb is real. Have multiple uses after reading as well.

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  • Newspaper to clean windows? Not since the introduction of Latex inks. Use clean paper towels.

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  • Good one. I commented because I used to make a living building go fast cars and have seen some bad accidents caused by dumb stuff like not having a spacer to take load where needed, I wish I had had a digital camera to take photo's of some of the bodgey 'creations'. Main reason there are inspections at tracks especially where there are 'run what you brung' events.

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  • Gofish commented on GiorgiQ's instructable Drill Perpendicular

    Just about to make something similar for a particular job. Very useful.

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  • Dude! Where is the spacer on the top bolt on your front lift? Very bad.

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  • Hello Niko, Thank you for such an excellent instructable, love the winder, I think your good Karma must be off the scale.

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  • Gofish commented on petejc's instructable Faux Bamboo

    Brillient! I love what plastic does but hate the look of it, now I can have the best of two worlds.

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  • Gofish commented on zaphodd42's instructable Make PVC Look Like Wood

    I need to replace gutters and downpipes on my old house this Summer, thanks for giving me some ideas.

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  • I put portions of food in zip lock bags but only seal from either side leaving a gap in middle. Put several bags in a jumbo size vac seal bag and suck the air out. Bags self seal after air is expelled. Throw big bag in freezer then just take out portions as needed.

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  • Randy has mentioned the string trick and I'd like to add for road use a safety R-clip instead of a split-pin.

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  • Does not download as a .pdf!Great article and I will pass on to my daughter who is studying make up.

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