Tools + Tips
What are these things? They are clamps made from back plastic drain pipe. The smaller one is 3" pipe and the larger is 4" pipe. On the larger one, at the top, you can see a black line. This is were the pipe was cut across.
A page for tools I have found usefull that you cannot buy, and information not readily available.
Have you ever tried to drill a hole through a wide board and have it come out the other side exactly were it is supposed to? And just how successful were you? This thing is a drill guide that lines up the exit point using a pin, with the entry point of the drill bit. The two shown at the right are 1/8" and 3/16" tools.
And what do we have here?
A wooden cam clamp
Some scrap 2" X 6" or pieces of 2" x 4"and 1/2" thick hardwood, some cutting, drilling and glueing and there you are.The drawing on the right gives the process for making the spiral face of the cam. First you draw a series of lines radiating out from a point 20° apart. then, at some point down the first line you draw a line perpendicular that crosses the next line. Use that crossing point to draw the next line the same way. Keep going and your lines spiral outwards. Join them all with a curve and voila!
The dimensions of the clamp parts are not critical. You can make this thing in any size you need. Using the materials I have suggested just makes it easier. Just make sure the long bar is tightly glued into the bottom jaw and the sliding jaw should be loose enough to slide easily. I glue some cork to each face for cushioning against the work. The cam pin is a short piece of 1/2" hardwood dowel. The drilled hole you see at the end of the slot in the sliding jaw is necessary to prevent the wood splitting.
The diagram here represents the pressure exerted on a wing as it flies through the air. On the left is the point where it attaches to the body, or fuselage. The wing this is for is the same width at both ends. The pressure is not the same all across the panel as you would expect. It becomes less and less the closer you get to the outer tip. At the left end of the chart is seen the words " aspect ratio" . The numbers 6, 10, 20 represent the length of the entire wing ( both sides, or panels) relative to the width. A wing with an aspect ratio of 10 is ten times longer than it is wide. On the chart we see that the numbers are different for the three wing shapes represented. The wing on my Pietenpol Aircamper is very close to a 6.
This template is for the standard lettering used in the 30's and 40's. This page is from a maintenance manual from 1940. Almost all the letters and
In the diagram at left we are concerned with glueing a
In fig. 4 there is no sidebar as a part of the box so a C
Whatever is at hand to do the job.
How do you measure from one side of a "box" to the other? Or the inside of a cabinet for shelves? Anywhere you need an accurate inside measurement. A tape measure my come close but is hardly accurate.
The second set of marks "B" have been added simply to showthat you can use the same two sticks to measure a number of dimensions, then cut out a number of different pieces for other locations. for instance a piece to fit across the bottom of the box where the two square blocks are.
Pencil line "A"
Pencil line "B"
Below are two tables concerning the strength of wood suitable for aircraft use. Spruce ( Old growth Sitka ) is now in short supply and is very expensive.
The second table grades various woods in simplified form. Use them together to determine what is suitable for your own situation of cost and availability.
Here are three views of my flute finger hole burning tool. The end is made from a brass wine bottle stopper
The metal bracket is a bent angle bracket from
the hardware store held
in place by four round
head screws. This allows for vertical adjustment. The other end is bent and
crimped down on the U
bracket holding the burn
in tool. This arrangement
dissapates any heat before it can reach the wood base assembly.
The bottle stopper head can
be bought from Lee Valley
Tools (see links page) and other tool and craft suppliers. It comes with a threaded rod insert. Remove this and thread in a 4" bolt with the head cut off. Glue the bolt into your choice of handle. The slots have been cut in with a 5"side grinder set into a table I made to cut up aircraft steel and aluminum into the parts I need for my airplane.
Saved a LOT of work!!
This is one of the router planes I use to cut the flue in the sound
mechanism of the flute to the proper depth. In my flutes that's 1/32
of an inch. I bought a " Miniature Chisel Plane" from Lee Valley
Tools and added cheek pieces and the bar across the front. The
palm handle is Taqua Nut, or Vegetable Ivory. The body is