46 SERVO 07.2015
My most recent tool addition for working with steel
was a portable band saw. There are many models available
to fit most budgets. It has become my “go to” tool
whenever I have steel to cut. It has simplified the process
and I now look forward to the cutting portion of the build
process. It slices like butter!
How Do We Make It All Go?
The most common methods at the disposal of the DIY
builder for powering your creation are servos, motors, and
pneumatics. Although there are some other options as well,
we’ll save those for a future discussion.
How do I choose? Let’s check out some of our choices
and see if we can make some sense of all this.
Servos — especially among this magazine’s readership —
are the preferred device most of us reach for when we look
to add motion to a project. The ability to control the exact
location of a moving part combined with the wide variety
of available models make servos a builder’s dream. The new
line of Actobotics parts from ServoCity is allowing us to
combine servos in never-before-imagined combinations.
Now, instead of spending hours in the shop designing and
building all the necessary brackets and parts required, I can
quickly find just what I need to complete my build. The
significant time-savings is a huge benefit and has allowed
me to construct just about any mechanism I can dream up.
To help you compare the many different models of
servos available, here are links to a couple of charts with
Hitec comparison chart
Figure 3. Plastic skulls with servos installed to allow them
Figure 4. Wiper motor rocking chair mechanism.
Figure 5. A nice wiper motor starter kit might include
these items (available from www.monsterguts.com/store/