|Voltmeter with ON/OFF
Switch by George Hagerty
"Swiveling I-Beam Clamp for Pipe and Conduit" -
- I disassembled clamp
into 2 constituent parts.
- Flange clamp was cut
down to make shallow "U-shape" which
becomes a kind of retro holder for my toggle
- Purchased a universal
ON/OFF Toggle switch from Advance Auto Parts -
the kind with flush bottom, enclosed base, no
protruding wiring tabs or screws - I Iiked the
more retro one with "ON/OFF" label in
red and black - $2.
- The Bolt and Nut
close conduit clamp for ¾ EMT or ¾
OD pipe [aka #1 size] from your I-Beam set now
becomes a perfect clamp to the handlebars.
- The threaded hole at
the side of the flange clamp becomes bottom of
your cut down holder and bolts to the top of
conduit/handlebar clamp via the supplied /
¼ -20 bolt (recycle, reuse).
- The 1/4-20 bolt is
cut and ground short to sit flush inside holder;
it will be secured by threading and trapped by
epoxy set switch sitting above it.
- Assemble holder and
clamp setup - remember to orient them at the
angle you want your switch to read when on the
handlebars - my location was pretty much 90
degrees to each other.
- Use JB Weld 2-Part
Cold Weld Epoxy ($6) to epoxy set universal
ON/OFF toggle switch into holder. Use
enough to fill the bowl of your holder, but not
too much - just enough and the black epoxy will
blend with the black casing of the switch to give
it that - "it was supposed to be that
way" look. Interestingly enough albeit
not visible in the photo - my switch was labeled
"CHINA" in white letters readable above
the epoxy - how appropriate!
- I purchased a 2"
round, black face voltmeter by Equus from JC
Whitney - $36.
- Mount voltmeter to a
second Bolt and Nut close conduit clamp via
supplied plastic bracket and stud/nuts/washers on
bottom of meter.
- I added a stainless
steel flat cable "zip" tie at top (Home
Depot - 10pk - $5) to encircle bezel of meter and
provide upper support to plastic holder arms.
- Attach both meter and
switch units to handlebars via your clamps.
Clamps are threaded 1/4-20 pan heads but I added
washers and nylon insert lock nut on the back
side for safety.
- Wire as
appropriate. I ran a "+" homerun
back to my battery in the trunk so I could read
at will, not going thru known to be troublesome
ignition setup in headlamp, and grounded
assemblies to new bright metal clamps at