simply a bonded tube assembly consists of two or more carbon tubes
that can be connected by way of a bonded interior or exterior
ferrule (tube) to create one long tube. Typically one end of the
ferrule is bonded while the other end will accept a slip fit to
the next tube in the assembly. This offers the capabilities of
a long tube with the benefits of being able to break the assembly
down into small sections for ease of transport. We build most
of our bonded assemblies for customers in the photography field
including professionals and hobbyists. Due to the expense of professional
camera boom systems many individuals find it more economical to
build their own system from off-the-shelf parts. Once you have
selected the pan and tilt system, required boom length, and the
camera you wish to use we will quote and fabricate an assembly
to fit your application. Most of the other components can be found
online and you can have a machinist fabricate the other parts
without a lot of expense. Click here
to see how one of our customers, writer and professional photographer
Stefan Sargent built a
complete system and wrote about his experience in the December
2008 DV Magazine. Below you will see pictures and technical specs
for some of the different assemblies we have built in the past.
Email or call
us today to discuss your project.
Our static booms have been so popular we decided to offer a boom
designed for automotive photographers. The boom featured above
features a combined length of 15ft. This super stiff boom has
an outside diameter that measures 2.00". The fiber orientation
and wall thickness is optimized to resist bouncing which will
improve your shots. This boom will work well with a 5-10 lb. tip
weight. We offer options such as extended 20ft length and a sanded
smooth matte finish. We can supply you with the carbon boom but
all other hardware must be purchase separately. A great source for clamps, cups, and other accessories can be found here.
The automotive boom images are courtesy of Ken Cravillion of Ken
Cravillion Photography. You can see more of Ken's work on his
blog at: http://kgcphoto.blogspot.com
The images you see below were taken with our 15ft boom. After
the image is shot the boom itself is edited out. Thank you for
the great pictures Ken!
READ THE JIM DAVIS REVIEW
VIDEO BOOM CASE STUDY:
ft long video camera boom for Italian TV station
Number of sections:
4 / plus 1 extra
Length of each section (excluding ferrule): 60"
Material: Upgraded Intermediate Modulus Carbon
Outer tube diameter: 2.00" (stock tooling)
Section 1 weight: 675 grams (Double wall thickness the first 4"
to accommodate counter weight)
Section 2 weight: 601 grams (8" inner ferrule bonded half
in half out of one end)
3 weight: 602 grams (8" inner ferrule bonded half in half
out of one end)
Section 4 weight: 532 grams (No ferrule in tip)
Spare section weight: 600 grams
Steel push button pin with detent weight: 18 grams x 5 = 90 grams
Total weight of system not including spare section, including
pins: 2500 grams (5.51 lbs.)
Total horizontal deflection under 5 lb tip weight: 7.5" from
base to tip assuming first section is fixed in place. In operation
there are 3 tube sections (15ft) in front of the tripod or pivot
point. At 50-60 degrees the camera boom will have much less deflection
given the same weight, horizontal positioning shows worst case
deflection. Each section was precision drilled and deburred. All
interior and exterior tube ends were micro contoured for operator
comfort and rapid setup.
modulus sanded smooth camera boom
sections 49" long including ferrule. Shorter lengths used
to avoid high airport transport fees.
To keep the sections together in down shots we chose these very
precise push button through pins with a detent ball near the end.
We drill holes through the mid-plane of the tube to keep as much
rigidity to the assembly as possible. Boom is designed to be used
with the pins in the horizontal position. Some of our customers
have used velcro to keep the tubes from sliding apart since the
sections are so light weight as shown in the picture below, far
modulus carbon fiber field boom (vertical use only)
We painted these for the customer to protect from
pc / 15 foot sport fishing boom with outer bonded ferrules
The customer requested that we use stock tubes
and keep the OD below 1.00" for the main body of this assembly.
At the time we only offered .037" wall thickness in the stock
size below our .995" OD so we elected to use an outer ferrule
for structural reasons while keeping the max 1.00" OD in
mind. We make a great effort to work within the customers budget
and technical requirements.
With each of our bonded assemblies we ensure that everything
fits before leaving our shop. The inner ferrule must be sanded
to a specification that will maintain an adequate bond gap while
at the same time holding a tolerance tight enough that you experience
very little side play on the slip fit side of the ferrule. Each
assembly section is micro contoured on the inside and outside
of each end to make handling comfortable. We do this to avoid
any chance of a carbon sliver coming off in your hand. This also
aids in faster assembly time. If we drill holes they will be deburred
inside and out prior to cleaning and shipping your assembly. We
believe the little things do matter! We can also assist you with
a quote on collapsible tubing assemblies where each tube fits
into the next which eliminates the need to use of ferrules and
makes storage even more compact. We await your request!