Welcome, and be Inspired with Dominic!
Today, I'm going to show you how I made these versatile boom arms.
You can use them for your microphone, for homemade light panels, or like the one I put
my camera on.
Let me show you how I made them.
And if you light me up one more time when I'm not in the darkI'll donate you to a city
college.
And yes, they squeak, too.
I start out by cutting lengths of plywood.
They determine the reach of the arm as well as it's bulkiness.
I later shorten two of the three arms that I could make from this piece, so... maybe
put some thought into that beforehand.
The main rule for this design is to attach the arms in such a way that both pairs have
always the same distance to each other.
That is, the ends have always the same distance to each other.
This is easier said, but also easily done.
I...
That did not make sense, but I hope this will.
I resaw a piece of plywood to use as the knee, the joint between the two segments of the
arm.
You could call it an elbow, but, seriously, would you rather have whatever tool you put
on here elbow you, or bend the knee to you?
With the other holes in this piece of scrap it's not as easily visible here, but I drill
two sets of two holes into this.
Each pair is the same distance apart, and they sit at an angle.
I recommend something in the neighbourhood of 45°.
That allows you to fold the arm all the way down.
Depending on your geometry, you might have to cut a few corners to prevent interference.
To keep the pieces from coming apart, we need two knee pieces to sandwich the slats.
On a side note, the main rule mentioned earlier applies to both segments of the arm separately.
In theory, you could use different distances for both pairs of struts, but in practice,
using the same distance for both makes things a lot easier.
For the ends of the arm, I use the same hole distance in two pieces of plywood each.
Bolts come in handy to hold things together, to set the arm in such a way that you can
move it, but that it holds position otherwise.
Depending on the load that you put on, you can also open the joint, move it, and then
fasten it again.
More on that later.
For now, I start with a base.
If all you need is move the arm in one direction, this base is enough to clamp or screw it to
a table or workbench.
To take it a step further, I want it to pivot.
To that end, I use a bolt and a t-nut.
It works, but the bolt here gets in the way and prevents me from actually tightening the
pivot bolt, and it might eventually come loose.
More on that later, too.
For now, I cobble together a holder for this old scanner that I turned into a lamp using
a LED strip.
There are certainly more elaborate solutions for this, but I use a pivot point for two
axis each, and it works well enough.
The audience enjoys it, at least.
Coming back to the pivot section, I replace the base with a box and add a round disc with
a bolt in it to thread into the t-nut from underneath.
That allows me to clamp this to a bench and still tighten or loosen the pivot bolt.
Using the first arm as a guide, it is obvious that I do not need an arm as long or unwieldy
for my microphone.
So I disassemble it and cut the pieces down.
Make sure you align the holes and not the ends of the pieces, just in case you trimmed
them earlier.
Then I re-drill the holes and assemble the shorter version.
Finally, a third arm is to hold my camera.
While my microphone is light enough for wingnuts to do the trick, I want a little more grip
here.
So I drill two holes into a piece of scrap plywood that are slightly smaller than a nut,
then add through-holes for the coresponding thread.
After hammering two nuts on a bolt into these, I cut the plywood in two and have two nuts
with good grip.
I could make them prettier, but they work.
This comes in handy for video shooting, to get a little more light on the scene, but
like I said at the beginning, I also put my camera on such an arm, the shortened one.
Let me see whether I can't show you.
I need to pull you out, so, hold still.
And there we go.
Sorry, this is a little bit shaky, but that happens when you pull people out of cameras.
And there we go, that's the boom arm my camera is on.
And as you can see, well, you saw it already, I used these nuts here, just hammered into
a piece of plywood, and they work pretty well.
I can extend the camera all the way.
And I love the squeaking.
There we have the boom arm, and just for your imformation, I have a steel pipe that is stuck
in a bucket full of concrete, on a box with casters, based on a design by Jeremy Schmidt
from Jer's Workshop.
Let me put you back in.
And there you go.
A little close, so let me push you back.
There's always some pushback.
So, there we go.
Not quite.
As you can see, these boom arms are pretty versatile.
You can use them for microphone, camera, light fixtures.
You can also put a little tray on them to pull over to the workbench, to the part of
the bench where you need certain tools or just something to put some stuff into.
Let me know in the comments below what you think about this idea, and how you would use
it.
Share it with your friends if you liked it, subscribe to my channel if you think I earned
it, and as always, remember to be Inspired!
I really need to clean my lens.
On the inside...
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