Johny Gonzales

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How to choose best rotary tool bur for cutting wood

Burs for cutting wood are made of a variety of materials and are available in many shapes. Carving, shaping and grinding is made with a range of burrs, for wood projects are tungsten bits are the best. Mini saw drills are made from HSS or high-tempered steel, both types have great heat resistance and life. Dremel drills are difficult to control on an in-the-round carving and cut wood up to ¾" thick (read also).

Closure Most common rotary tool bits you’ve found when you bought the tool. Diamond drill bits are mostly for drilling holes in hard materials – glass and stone. On wood sintered diamond bits are as durable as carbide; plated diamonds are less durable. Carbide or tungsten carbide dremel bits are more durable then HSS ones and carve wood easily. Aluminum-oxide stones are usually sold as red (80 to 150 grit) and white (400 grit), can be reshaped and sharpened easily to extend their life (best dremel bits for wood cutting). Ordinary sanding bands work similar to ordinary sandpaper, 3M ceramic bands last at least twice as long.

The coarsest and long-lasting bits feature aggressive carbide points bonded to a metal shaft. Most aggressive bits available, work good for rapid stock removal when roughing out both hard and soft wood Used for rapid stock removal when roughing out both hard and soft wood

Stone burrs come in a vast assortment of different colors, sizes, grades, and different materials. Stones are used to create lumps and bumps on bird carvings, with a limited ability to create feathers and hair Grey stones are coarse and comes in  60 grit, used for hard wood, steel and stone. White stones are fine and used for smoothing, polishing and refining all engravings and carvings.

Cutting discs made of tungsten carbide are best suited for metals and wood, whereas the diamond discs are more effective on glass and stone. The discs come in several grits and cut wood, laminates, fiberglass, gourds, and ceramics. Some of them are made with minimal gaps between the teeth for very precise cutting. If you need to cut fast and don’t need precise work, choose bigger gaps.

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Ventilation system fans

Fans are the "workhorses" of the ventilation systems, they provide enough air movement to capture contaminants at the source, draw them through the hood, and carry them through the duct system, through the air cleaning devices and exhaust to the outdoors (types of ventilation systems). There are only 2 main design of exhaust fans: axial Fans look like propellers and draw the air straight through the fan; centrifugal fans look like "squirrel cages" that draw air into the center of the device and exhaust it at a 90-degree angle.

Misting fans use the cooling power of evaporating water, so they are all natural and good for the environment. A fan blows a fine mist of water into the air and if the air isn’t humid, the mist evaporates, taking heat from the air with it, this allows the misting fan to work like an air cooler. Misting fan systems range from low pressure misting fans to high pressure systems, there are also available portable misting fans with or without water tanks, from industrial strength to small portable battery-operated fans. Water quick evaporates in a dry climate, so a misting fan can work effectively.

Centrifugal fans have three main types of blades: inclined backward and forward blades, and radial straight blades. Centrifugal fans are great for high resistance, that is usual for local exhaust ventilation systems: home furnaces, vacuum cleaners, and hair dryers. Rugged radial blades of the centrifugal fans are least likely to become abraded or clogged by the dust, so they works great for exhausting of heavy dust amounts.

Main types of propeller fans are tubeaxial, vaneaxial, and propeller fans. Dilution ventilation or cooling is often performed with propeller fans, usually mounted in a wall or ceiling. Common examples are a free standing room fan or automobile radiator one. These fans can move large amounts of air if there is little resistance, and are not suited for local exhaust ventilation because they do not provide enough suction to draw air through the system. Vaneaxial and tubeaxial devices are fans made to fit in a duct for clean air applications, for example for roof exhaust ducts.

Dryer booster fans feature quiet, efficient backward curved impellers that are capable of overcoming long duct runs, and an in-line configuration that simplifies installation. When it comes to ducting dryers - the perfect solution is to run the dryer duct right out out the wall behind the dryer – with a duct run of 1 foot or less. The reality which contractors and homeowners have to work with is far from perfect - a short dryer duct length is not always possible, this is where dryer booster fans can help.

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Baby wipes

Baby wipes offer a  effective, quick, and convenient cleaning solution, there are lots of different types available - from face cleansing wipes to kitchen surface or bathroom cleaning wipes. There are dozens of wet wipes types and styles available: with different scents or no scent at all, thin and extra thick, refill and flip top packs, and more. In general,  moistened wipe, is a small moistened piece of cloth or sometimes paper, that often comes folded and individually wrapped for convenience.

Baby wipes are used to cleanse the skin of infants, they are saturated with gentle cleansing ingredients and sometimes alcohol based 'cleaners'. Baby wet wipes usually come in a plastic box, wipes inside pop up through the lid so it's easy to grab them with one hand while changing a diaper. You can also buy refill wipes for pop-up containers, they cost a little less and don't take up much room to store. Travelers use baby wipes in special rigid plastic boxes or plastic bags, that opens up with a sticker-type top.

Wet wipes can be used to clean any plastic surface, including televisions, laptops, cameras. If you have sensitive skin, have difficulty getting clean, it might be a good idea to keep wet wipes handy, just in case.

From the 2006 baby wipes began to be marketed as a luxury alternative to toilet paper by Kimberly-Clark and Procter & Gamble. Wet towels are often sold in Southeast Asia out of refrigerators to give the user a refreshingly cool effect. These also found a use among visitors to outdoor music festivals, particularly those who camp, as an alternative to communal showers.

Some wipes are designed to be flushable, while others have to be disposed of in general household waste to avoid them blocking sewers and potentially contributing to marine litter. Flushing of wet wipes can contribute to sewer blockages known as fatbergs, even wipes marketed as being "flushable" can cause blockages Guardian article. Moistened wipes have a tendency to cling together Alcohol containing wet towels can suppress the bacteria used for breaking down solid waste in septic tanks.

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The main thing that keeps you on the road

Today tire is a ring-shaped component which surrounds a wheel’s rim. It transfers a vehicle's load from the axle through the wheel to the ground. We need tires to create normal traction on the surface traveled over

The materials of modern pneumatic tires can be divided into two groups, the cords that make up the ply and the elastomer which encases them. The cords, which form the ply and bead and provide the tensile strength necessary to contain the inflation pressure, can be composed of steel, natural fibers such as cotton or silk, or synthetic fibers such as nylon or kevlar. Composed of steel, natural fibers such as cotton or silk, or synthetic fibers such as nylon or Kevlar, the cords form the ply and bead and provide the tensile strength necessary to contain the inflation pressure The key component of pneumatic tire design is the elastomer, used to form the tread and encase the cords protecting them from abrasion and holding them in place. It can be composed of various composites of rubber material – the most common being styrene-butadiene copolymer – with other chemical compounds such as silica and carbon black. To reduce fuel consumption in the transportation sector the rolling resistance in the elastomer material optimization is a key challenge.

There are two aspects to how pneumatic tires support the rim of the wheel on which they are mounted. First, tension in the cords pulls on the bead uniformly around the wheel, except where it is reduced above the contact patch. Transfer of the net force to the rim through the bead is the second aspect

There are about 450 factories that manufacture pneumatic tires Tire production starts with bulk raw materials such as rubber (60% -70% synthetic), carbon black, and chemicals and produces numerous specialized components that are assembled and cured. The styrene-butadiene copolymer is the most commonly used among many kinds of rubber. Bridgestone, Michelin, Goodyear, Continental, and Pirelli are the top manufacturing companies by revenue. </p> <p>Most tires, such as those for automobiles and bicycles, are pneumatically inflated structures. These also provide a flexible cushion that absorbs shock as the tire rolls over rough features on the surface. Tires provide a footprint that is designed to match the weight of the vehicle with the bearing strength of the surface that it rolls over by providing a bearing pressure that will not deform the surface excessively. Natural rubber, fabric and wire, synthetic rubber along with carbon black and other chemical compounds are the main materials of today’s pneumatic tire. A body and a thread are parts of a tire. The tread provides traction while the body provides containment for a quantity of compressed air.

Before rubber was developed, the first versions of tires were simply bands of metal fitted around wooden wheels to prevent wear and tear. Early rubber tires were solid (not pneumatic). Pneumatic tires are used on many types of vehicles, including cars, bicycles, motorcycles, buses, trucks, heavy equipment, and aircraft. Metal tires are still used on locomotives and railcars. Solid rubber (or another polymer) tires are still used in various non-automotive applications, such as some casters, carts, lawnmowers, and wheelbarrows.

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Flaring technique

Mechanical connection is sometimes required or preferred to join copper or steel tubes together, instead of brazing, soldering, or welding. To create a mechanical joint on tubes flaring is used. Flaring is a process to form the end of a tube to make a liquid-tight or a gas-tight connection. </p> <p>If you flare the tubing properly with the proper tools and right technique you’ll get the leak-proof joint First of all, you need to cut the tubing to the proper length using the appropriate tool. Second step is to slide the compression nut on the tubing. The last step is to use a flaring tool kit to make a flaring itself.

Double-lap flaring offers additional strength for tube ends, that are subjected to more fatigue and stress. The joint is designed so that the inside surface of the flare has a larger diameter so it does not interfere with flow characteristics of the system. To meet the same specifications as the Single Flare, Double-lap flaring can be formed in the same shapes.

Single flaring is the most used and the simplest process of flaring The single flare is available in both 37 and 45 degrees. Rotary or spinning the flared end, and a ram forming are two available ways to accomplish single flared tube end.

The 45-degree SAE style, and the 37-degree AN style, also used with the JIC system are the common standards for flare tube ends and flare fitting in use today. The AN/JIC style generally has a higher pressure rating for a given size tubing. SAE and AN/JIC connections are completely incompatible due to the different flare angle. The hydraulic hoses are usually 37-1/2° flare connections, and the refrigeration and air conditioning industry usually uses 45° flare connections. A copper tube used for propane, LP, or natural gas may use flared brass fittings of single 45°-flare type, according to NFPA 54/ANSI. Z223.1 National Fuel Gas Code. Nevertheless, all National Model Codes permit the use of flare fitting joints, the one should be consulted by the authority having jurisdiction (AHJ) to determine acceptance for a specific application

Most of flaring kits are relatively inexpensive and easy to find, despite the fact that different sizes of tubes require specific sets of equipment. You need to use a proper cutting tool to cut a tube. A flaring tool kit usually consists of two main pieces – a reamer and a flare form. A flare form is like a clamp with a number of holes used for various tube diameters. It holds the pipe firmly so you can flare the pipe with minimum efforts The thing that makes the actual flaring is reamer, which has holding arms, a screw, and a conical point.

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Nice to see you!

My name is Johnny, I was born in Camden, and I am a mechanical designer.

I have repaired many different stuff and I have learned engineering hands-on in a manner that colleges do not provide. Now, when I’ve got much experience, I became a member of the supportive fellowship that I can rely on, a gang of friends that I will support my growth as a person and as an engineer.

To do truly something special I’ve begun this little tech blog and look forward to providing help and share my experience with the beginners (as I was some time ago) and enthusiasts in engineering. So, don’t hesitate to ask me any question, share your experience and even criticize me – I’m ready to have new experience and learn new things