The balsa tree, with
its scientific name Ochroma pyramidale, is an evergreen tree native to South and
Central America, and grows as far north as Mexico. These hardy trees can grow in
difficult conditions. They tolerate drought, thin or rocky soil, harsh sunlight
and are evergreen in most of their warm native climates. Balsa wood, from the
balsa tree, is known for certain specific qualities.
Age
Balsa trees have a lifespan generally around 100 years. Thus, as opposed to
oak, redwood or maple, balsa wood is a relatively young wood.
Hardness
Balsa wood is technically considered to be a "hardwood." However, it is the
lightest of all pxbkctbsd hardwoods, with an open (as opposed to dense) grain
structure.
The Name
The word "balsa" is derived from the Spanish word for "raft" and, in earlier
centuries, balsa wood was indeed used for raft building.
Strength
In spite of its lightness, balsa wood is also strong, which is an odd
combination in the hardwood family.
Uses
Balsa wood is used in the boating industry. It is a common wood for model
building. It was also used in the early days of airplane building and used to
make small planes that were both light and strong.
Article resource: http://www.balsafactory.com/ .
2013年8月8日星期四
Now to carve balsa in the right way
what should be done is to measure, mark and cut the base pieces for your
structure. Miter the base pieces to make more surface area to gl
Balsa wood is a lightweight wood that is excellent for carving. It is well known for its lightweight and there are various kinds of balsa products both in domestic and international markets for your selection. balsa is easy to curve and it is the best choice for making models and so forth. It has been chosen as the perfect choice as the boat raw materials which can float very well. Actually, you can carve balsa into your expected shapes if you havebalsa wood and if you read the following instructions carefully.
In order to use balsa to carve your expected things, you may need the pencil sketch pad, balsa wood, carving knife, sandpaper, acrylic paint and paint brush actually. Generally speaking, it will be very easy for you if you use the balsa wood since it is very soft and easy to work with.
Balsa wood is famous for its soft and lightweight. It is very easy to work with. The balsa wood can be used to make models and doll furnitures and so forth. It is very popular among consumers both at home and abroad. However, have you ever confronted with the cracks or gaps during or after your building? Here we will tell you how to fix the balsa wood cracks or gaps.
You may need to prepare the following things if you want to fix the balsa wood. The things are as follows, like newspaper, balsa wood model, ruler, yellow carpenter's glue, craft knife, balsa wood sheets, fine-grit sandpaper, cloth, yellow wood glue, masking tape, medium-grit sandpaper, lightweight spackle, putty knife and so forth. Generally, such kind of work can be done by yourself very easily. Next is the brief introduction.
you should choose the high quality balsa wood from suppliers. There are countless suppliers of balsa wood. And you are advised to choose balsa wood in sheets or blocks. You can buy it from solid shops on online shops actually.
you should decide what you want to carve actually. To beginners, you are not advised to carve those sophisticated pieces since it is difficult and you may lose confidence and interest if you fail to complete it. You are advised to choose somthing easier, like the popular choice - boat. Use your pencil to drawn your expected shape on paper which can be used as your guide when carving.
article resource: http://www.balsafactory.com/.
Balsa wood is a lightweight wood that is excellent for carving. It is well known for its lightweight and there are various kinds of balsa products both in domestic and international markets for your selection. balsa is easy to curve and it is the best choice for making models and so forth. It has been chosen as the perfect choice as the boat raw materials which can float very well. Actually, you can carve balsa into your expected shapes if you havebalsa wood and if you read the following instructions carefully.
In order to use balsa to carve your expected things, you may need the pencil sketch pad, balsa wood, carving knife, sandpaper, acrylic paint and paint brush actually. Generally speaking, it will be very easy for you if you use the balsa wood since it is very soft and easy to work with.
Balsa wood is famous for its soft and lightweight. It is very easy to work with. The balsa wood can be used to make models and doll furnitures and so forth. It is very popular among consumers both at home and abroad. However, have you ever confronted with the cracks or gaps during or after your building? Here we will tell you how to fix the balsa wood cracks or gaps.
You may need to prepare the following things if you want to fix the balsa wood. The things are as follows, like newspaper, balsa wood model, ruler, yellow carpenter's glue, craft knife, balsa wood sheets, fine-grit sandpaper, cloth, yellow wood glue, masking tape, medium-grit sandpaper, lightweight spackle, putty knife and so forth. Generally, such kind of work can be done by yourself very easily. Next is the brief introduction.
you should choose the high quality balsa wood from suppliers. There are countless suppliers of balsa wood. And you are advised to choose balsa wood in sheets or blocks. You can buy it from solid shops on online shops actually.
you should decide what you want to carve actually. To beginners, you are not advised to carve those sophisticated pieces since it is difficult and you may lose confidence and interest if you fail to complete it. You are advised to choose somthing easier, like the popular choice - boat. Use your pencil to drawn your expected shape on paper which can be used as your guide when carving.
article resource: http://www.balsafactory.com/.
2013年8月7日星期三
What is Pound Balsa?
What is Contest 4 to 6 Pound Balsa?
Contest Balsa is nothing more than balsa that should fall within 4 to 6 pounds measured by density in pounds per cubic foot.
But all you really need to do is to think about the application area of your model, especially when you enlarge plans or build larger aircraft. An investment in a nice electronic gram scale will be a big help. The chart below is a great reference for wing sheeting which can be applied to other areas of your model building. If the hobby store doesn't mind, bring your gram scale with you when you purchase balsa for your next project so you can build lighter, larger and stronger model aircraft.
Balsa Grains
A-Grain: Balsa sheet has long fibers that show up as grain lines. Its very flexible across the gdjlhqgnvz sheet and bends around curves easily. Watch-out it warps easily.
B-Grain: Balsa sheet has some of the qualities of both A & B grain. Grain lines are shorter the A and feels stiffer across the sheet. It is a general purpose selection and can be used for many different jobs
C-Grain: Balsa sheet has a mottled appearance. It is very stiff across the sheet and spits easily. Great for wing ribs and light formers. When used properly, it will help you build a light yet very strong model. Four to Six pound balsa stock is commonly called "Contest Balsa"
article resource: http://www.balsafactory.com/ .
Contest Balsa is nothing more than balsa that should fall within 4 to 6 pounds measured by density in pounds per cubic foot.
But all you really need to do is to think about the application area of your model, especially when you enlarge plans or build larger aircraft. An investment in a nice electronic gram scale will be a big help. The chart below is a great reference for wing sheeting which can be applied to other areas of your model building. If the hobby store doesn't mind, bring your gram scale with you when you purchase balsa for your next project so you can build lighter, larger and stronger model aircraft.
Balsa Grains
A-Grain: Balsa sheet has long fibers that show up as grain lines. Its very flexible across the gdjlhqgnvz sheet and bends around curves easily. Watch-out it warps easily.
B-Grain: Balsa sheet has some of the qualities of both A & B grain. Grain lines are shorter the A and feels stiffer across the sheet. It is a general purpose selection and can be used for many different jobs
C-Grain: Balsa sheet has a mottled appearance. It is very stiff across the sheet and spits easily. Great for wing ribs and light formers. When used properly, it will help you build a light yet very strong model. Four to Six pound balsa stock is commonly called "Contest Balsa"
article resource: http://www.balsafactory.com/ .
2013年8月6日星期二
C grain balsa wood features
balsa grading is done
based on the orientation of the cells in the balsa. Balsa has two main types of
cells, longitudinal and radial. As the tree is standing, the longitudinal cells
are vertical, and the radial cells (or rays...) are horizontal, from the center
of the tree out. In the picture below, the longitudinal cells appear as dots,
and the rays appear as lines.
Grading balsa has been done in the same way for over 60 years. The standard designations of A, B, and C have been use to describe the grain orientation of the cut sheet, and a view of how the sheets are cut from the balsa billet are shown below. (Note that the rectangles with the grain designations would represent the -end- of a balsa sheet...)
A grain is that which has the longitudnial cells running the length of the sheet, and the rays perpendicular to the sheet. A grain is generally used for wing spars and outlines, and is more readily bent around forms for wing tips. Note in the picture below you can see the long darker cells, which are the longitudinal cells. This contributes to the stiffness over the length of the sheet, and why it is suited well for spars. A grain sheets, due to the orientation from the original log, generally have a high degree of uniformity from the sheet, since all of the width of the sheet came from the same growth cycle of the tree. A grain is also very flexible across the width of the sheet, and stiffest along the lenght of the sheet.
C grain has the rays oriented across the width of the sheet, and a "perfect" sheet of C grain should look like this:
Note that you can see the rays traveling virtually the entire width of the sheet, which contributes to the stiffness. C grain is generally used for ribs, motorsticks, and booms, and is very stiff when rolled into tubes. C grain is somewhat like a natural plywood, due to the orientation of the longitudinal and radial cells, and has charistics of plywood in that respect. As a billet of balsa is being cut for C grain, due to the nature of the growth rings, axtmdjbfzx the billet will eventually not be "perfect" C grain. In the picture below, you can see a sheet cut which is typically considered C grain, but is a few degrees from a true C grain sheet.
As the sheets diverge from being cut along the rays, the sheet takes on a more mottled apperance instead of distinct wide lines, and eventually turns into B grain.
"Mottled" C grain and BC grain can many times be used as effectively as "perfect" C grain. In fact, some actually prefer BC grain for some applications, as when a tube made from it does break, it can be easier to repair. Grading of balsa is obviously not a science, and many sheets could fall into either category, but generally the predominate characteristic of the sheet will be used for the final grading.
In any given billet, you can theoretically orient the billet to get any of the above grains. However, some billets are more suited to one grade or the other, and generally sheets are cut in the orientation that is most efficient and has the highest yield. As you can see in the above picture, a billet oriented with A grain on the top would not need to be rotated during the cutting process much if at all, and all sheets would basically be "perfect" A grain. Balsa stock generally comes in 3"x3"x36" blocks, which then are cut in two, (for the standard 18" sheet length") and then each block is sawn in two, with each billet measuring approximately 1.25"x3"x18".
It is almost always possible to orient a 3"x3" block to get perfect grain orientation, but since low density balsa stock is in fairly short supply, and in the attempt to get the highest balance of yield to quality, some billets are cut "as is" instead of cutting them up to get a perfect billet. In other words, given a block of good 4# balsa, it is better to have two billets than one, i.e. twice as many sheets. This is where the in-between grades of AB, B, and BC generally come from.
During the cutting process, my setup allows me to angle the billet to optimize the grain orientation. However, on each change, the billet has to be squared off before the cut, resulting in waste and less yield. Depending on the particular billet being sawn, this may or may not be desireable. Due to the lower yield when cutting sheets graded as either AP or CP ("perfect" A or C grain) are priced at a slight premium.If you want to know more information about balsa wood, go to our website here : http://www.balsafactory.com/.
Grading balsa has been done in the same way for over 60 years. The standard designations of A, B, and C have been use to describe the grain orientation of the cut sheet, and a view of how the sheets are cut from the balsa billet are shown below. (Note that the rectangles with the grain designations would represent the -end- of a balsa sheet...)
A grain is that which has the longitudnial cells running the length of the sheet, and the rays perpendicular to the sheet. A grain is generally used for wing spars and outlines, and is more readily bent around forms for wing tips. Note in the picture below you can see the long darker cells, which are the longitudinal cells. This contributes to the stiffness over the length of the sheet, and why it is suited well for spars. A grain sheets, due to the orientation from the original log, generally have a high degree of uniformity from the sheet, since all of the width of the sheet came from the same growth cycle of the tree. A grain is also very flexible across the width of the sheet, and stiffest along the lenght of the sheet.
C grain has the rays oriented across the width of the sheet, and a "perfect" sheet of C grain should look like this:
Note that you can see the rays traveling virtually the entire width of the sheet, which contributes to the stiffness. C grain is generally used for ribs, motorsticks, and booms, and is very stiff when rolled into tubes. C grain is somewhat like a natural plywood, due to the orientation of the longitudinal and radial cells, and has charistics of plywood in that respect. As a billet of balsa is being cut for C grain, due to the nature of the growth rings, axtmdjbfzx the billet will eventually not be "perfect" C grain. In the picture below, you can see a sheet cut which is typically considered C grain, but is a few degrees from a true C grain sheet.
As the sheets diverge from being cut along the rays, the sheet takes on a more mottled apperance instead of distinct wide lines, and eventually turns into B grain.
"Mottled" C grain and BC grain can many times be used as effectively as "perfect" C grain. In fact, some actually prefer BC grain for some applications, as when a tube made from it does break, it can be easier to repair. Grading of balsa is obviously not a science, and many sheets could fall into either category, but generally the predominate characteristic of the sheet will be used for the final grading.
In any given billet, you can theoretically orient the billet to get any of the above grains. However, some billets are more suited to one grade or the other, and generally sheets are cut in the orientation that is most efficient and has the highest yield. As you can see in the above picture, a billet oriented with A grain on the top would not need to be rotated during the cutting process much if at all, and all sheets would basically be "perfect" A grain. Balsa stock generally comes in 3"x3"x36" blocks, which then are cut in two, (for the standard 18" sheet length") and then each block is sawn in two, with each billet measuring approximately 1.25"x3"x18".
It is almost always possible to orient a 3"x3" block to get perfect grain orientation, but since low density balsa stock is in fairly short supply, and in the attempt to get the highest balance of yield to quality, some billets are cut "as is" instead of cutting them up to get a perfect billet. In other words, given a block of good 4# balsa, it is better to have two billets than one, i.e. twice as many sheets. This is where the in-between grades of AB, B, and BC generally come from.
During the cutting process, my setup allows me to angle the billet to optimize the grain orientation. However, on each change, the billet has to be squared off before the cut, resulting in waste and less yield. Depending on the particular billet being sawn, this may or may not be desireable. Due to the lower yield when cutting sheets graded as either AP or CP ("perfect" A or C grain) are priced at a slight premium.If you want to know more information about balsa wood, go to our website here : http://www.balsafactory.com/.
2013年8月5日星期一
Cut the balsa wood into the shapes
balsa wood is a soft,
spongy wood that's prized for being so light that it can be cut using a craft
knife rather than a saw. In some cases, however, the softness of this wood make
it problematic for structures that need a little more strength. Combine the best
of both worlds by hardening your balsa wood pieces after they're cut or adding
strength through double panes of reinforced wood.
Cut the balsa wood into the shapes you want for your project; this way, you can get the pieces you want with ease while the wood is still easy to cut.
Pour wood hardener into the disposable container. Fill it deep enough to submerge the thickest piece of balsa wood you've cut.
Submerge each piece of wood in hardening solution using the tongs (do them in turn, or all at once, depending on the size of the container), coating them completely. Hold each piece of wood under the liquid and watch bubbles rise from the spongy wood. Remove each piece when it no longer bubbles and cannot soak up any more hardener.
Lay the wood pieces on waxed paper. Let them dry according to the instructions on the wood hardener, allowing each side of the wood to dry for the allotted time before turning it over to let the other side dry for the same time.
Cut two pieces of balsa wood for each piece of your craft project. With each pair of axtmdjbfzzc pieces, cut the second one so that it mirrors the first, allowing you to press the two pieces together back-to-back.
Using the paintbrush, coat one of each pair of pieces with epoxy resin. Use a thin coat, but try to cover the entire piece. If the wood is too big or the resin too thick to cover the whole thing, apply epoxy in a line around the outside edge of the wood.
Glue the two pieces of wood together. Press each piece of wood against its matching piece, lining up their edges and pushing them firmly together. Hold the wood pieces together until the epoxy sets, or lay the wood on its side to let gravity hold the pieces in place.For more related article comes from http://www.balsafactory.com/.
Cut the balsa wood into the shapes you want for your project; this way, you can get the pieces you want with ease while the wood is still easy to cut.
Pour wood hardener into the disposable container. Fill it deep enough to submerge the thickest piece of balsa wood you've cut.
Submerge each piece of wood in hardening solution using the tongs (do them in turn, or all at once, depending on the size of the container), coating them completely. Hold each piece of wood under the liquid and watch bubbles rise from the spongy wood. Remove each piece when it no longer bubbles and cannot soak up any more hardener.
Lay the wood pieces on waxed paper. Let them dry according to the instructions on the wood hardener, allowing each side of the wood to dry for the allotted time before turning it over to let the other side dry for the same time.
Cut two pieces of balsa wood for each piece of your craft project. With each pair of axtmdjbfzzc pieces, cut the second one so that it mirrors the first, allowing you to press the two pieces together back-to-back.
Using the paintbrush, coat one of each pair of pieces with epoxy resin. Use a thin coat, but try to cover the entire piece. If the wood is too big or the resin too thick to cover the whole thing, apply epoxy in a line around the outside edge of the wood.
Glue the two pieces of wood together. Press each piece of wood against its matching piece, lining up their edges and pushing them firmly together. Hold the wood pieces together until the epoxy sets, or lay the wood on its side to let gravity hold the pieces in place.For more related article comes from http://www.balsafactory.com/.
2013年8月2日星期五
different types of rc airplanes
You can easily make RC airplanes by yourself. balsa RC Airplane kits can be of
different types. The prominent ones are:
1. RTF Kits:
Ready-to-fly (popularly known as RTF) RC airplane kits contain all the pre-assembled parts together and require a relatively less amount of assembly work. With these kits, one can construct a remote-controlled airplane in just about an hour.
2. ARTF Kits:
Almost Ready To Fly (ARTF) Radio Controlled Airplane Kits are somewhat similar to RTF kits kxiugtka but require relatively more time for assembly and basic construction. On an average, it takes around 20 hours of labor when assembling an aircraft using Almost Ready To Fly kits. These kits will require separate both purchase as well as installation of servos, speed controller (electric), choice of motor (glow fuel, gas or electric) and occasionally control rods.
3. From scratch or plans:
Radio-controlled airplanes can even be constructed from scratch or plans. Many plans are available in the market. These plans include an Radio Controlled airplane's complete drawing and also its components. The parts first need to be cut as per the shape and size mentioned in the fuselage and in the plan. The rest of the steps are similar to that elaborated in the pre-assembled kits wherein all the essential components are assembled and joined together to build an RC Airplane.
To building Radio Controlled Airplane from scratch involves significant knowledge of airplane design. Constructing Radio Controlled Airplanes from scratch can be a very fun and delightful process.
4. Balsa Kits:
Balsa RC Airplane kits are available in a range of sizes and skill levels. These kits usually contain most raw materials that are required for building an unassembled airplane. Balsa kits can be of two types, namely laser cut Balsa kits and die-cut Balsa kits. Laser cut kits are comparatively more expensive and have more accuracy and tolerance in their construction. Balsa R. C Airplane kits don't usually include the essential tools which can be bought separately.
We all know that balsa wood is the best wood for our models. but where to get those quality balsa with reasonable price. Here i highly recommend you a professional online store for the website is http://www.balsafactory.com/.
1. RTF Kits:
Ready-to-fly (popularly known as RTF) RC airplane kits contain all the pre-assembled parts together and require a relatively less amount of assembly work. With these kits, one can construct a remote-controlled airplane in just about an hour.
2. ARTF Kits:
Almost Ready To Fly (ARTF) Radio Controlled Airplane Kits are somewhat similar to RTF kits kxiugtka but require relatively more time for assembly and basic construction. On an average, it takes around 20 hours of labor when assembling an aircraft using Almost Ready To Fly kits. These kits will require separate both purchase as well as installation of servos, speed controller (electric), choice of motor (glow fuel, gas or electric) and occasionally control rods.
3. From scratch or plans:
Radio-controlled airplanes can even be constructed from scratch or plans. Many plans are available in the market. These plans include an Radio Controlled airplane's complete drawing and also its components. The parts first need to be cut as per the shape and size mentioned in the fuselage and in the plan. The rest of the steps are similar to that elaborated in the pre-assembled kits wherein all the essential components are assembled and joined together to build an RC Airplane.
To building Radio Controlled Airplane from scratch involves significant knowledge of airplane design. Constructing Radio Controlled Airplanes from scratch can be a very fun and delightful process.
4. Balsa Kits:
Balsa RC Airplane kits are available in a range of sizes and skill levels. These kits usually contain most raw materials that are required for building an unassembled airplane. Balsa kits can be of two types, namely laser cut Balsa kits and die-cut Balsa kits. Laser cut kits are comparatively more expensive and have more accuracy and tolerance in their construction. Balsa R. C Airplane kits don't usually include the essential tools which can be bought separately.
We all know that balsa wood is the best wood for our models. but where to get those quality balsa with reasonable price. Here i highly recommend you a professional online store for the website is http://www.balsafactory.com/.
2013年8月1日星期四
Balsa wood is an ideal material for making model airplanes
balsa Wood is
kiln-dried and industrialized to obtain End-Grain Balsa Core Material, muxtpvix
which is used in many different applications that require to be lightweight but
still with high performance. These industries are: Aerospace, Marine, Wind,
Transportation, Tub & Shower, Flooring & Panelling and Construction.
Balsa Wood is also vastly used in the Model Grade industry to make model
aircraft and other model equipment. Another large application for Balsa Wood is
the surfing industry.
Balsa wood is an ideal material for making model airplanes. Balsa is light, strong, affordable, easy to shape and readily available. Balsa wood has been a principle construction material for model aircraft since the 1930s and remains so today. Following are eight interesting facts about this remarkable building material.
For any aircraft, from a real world Boeing 747 to a micro indoor radio control model plane, an important factor for successful flight is low weight. The less an aircraft weighs the better the flight performance.
Once the goal of low aircraft weight is understood, it is easy to understand why balsa wood is such a popular model airplane building material. Balsa wood is lightweight, readily available and has an exceptionally high strength-to-weight ratio. Balsa can be cut, sanded and shaped with everyday hand tools. Balsa absorbs shock and vibration well, and accepts a wide variety of glues and paints.More related article comes from http://www.balsafactory.com/.
Balsa wood is an ideal material for making model airplanes. Balsa is light, strong, affordable, easy to shape and readily available. Balsa wood has been a principle construction material for model aircraft since the 1930s and remains so today. Following are eight interesting facts about this remarkable building material.
For any aircraft, from a real world Boeing 747 to a micro indoor radio control model plane, an important factor for successful flight is low weight. The less an aircraft weighs the better the flight performance.
Once the goal of low aircraft weight is understood, it is easy to understand why balsa wood is such a popular model airplane building material. Balsa wood is lightweight, readily available and has an exceptionally high strength-to-weight ratio. Balsa can be cut, sanded and shaped with everyday hand tools. Balsa absorbs shock and vibration well, and accepts a wide variety of glues and paints.More related article comes from http://www.balsafactory.com/.
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