Simple Tripod - RASC

Simple Tripod - RASC
Simple Tripod
Bill of Materials:
1” x 2” x 4’ Pine
12” x 16” x ½” plywood
12” x 12” x ¼” plywood
2” x 2” x 12” Pine
Small door hinges with mounting screws
4” ¼-20 bolts with lock nuts
3” ¼-20 bolts with lock nuts
Rubber chair feet
Carpenter’s Glue
Wood screws
Legs + Tray Brackets
Table Top + Tray Base
Leg Brackets
Think about how each piece fits together before making final cuts. I didn’t include every dimension and adjustment.
The Tabletop is cut from the 12” x 16 “ x ½” plywood – cut near one
end to leave leftover material.
The legs are each formed with 2 - 1”x2” 4’ lengths if pine. I used 2
screws near the bottom end to fasten them together. Be sure the other
end can spread apart at least 2”. The holes near the top end of the leg
must be exactly ¼” to match the ¼-20 bolts and must be exactly
perpendicular to the surface.
The Leg Brackets, which fasten to the bottom of the Tabletop, are a simple
2”x2” block about 4” long. The other key to the solidity of the tripod is the
holes again must be exactly ¼” to match the ¼-20 bolts and must be exactly
perpendicular to the surface.
The Leg Brace is what supports the accessory tray. The
accessory tray is completely optional. If you don’t plan to
add the tray, you may disregard all reference to it and its
Looking at the tabletop upside-down, we see the leg brackets
attached. Attach each block with 2 screws through the tabletop,
and be sure to glue the blocks to the tabletop. This connection
must be absolutely rock-solid.
Now the moment of truth… If the holes are exactly
the same size as the bolts, and the holes are drilled
completely straight, this will work. Use the 4” bolts
Spreading the legs at the top will cause a small
angle in the alignment of the holes in the legs. You
will have to force the bolts through the holes with a
wrench. Use washer’s to allow lots of pressure
squeezing the legs together. This connection must
be perfect so the legs can open, and will be rocksolid.
If a tray is to be added, use this as a guide. All of the tripod’s strength
comes from the table’s connection to the legs. Since the tray is optional,
no precision parts are needed here. I used 3 small hinges to attach the tray
in this fashion.
This basic tray can be made from most anything. I used the one from my
first tripod – sort of a poetic thing I guess. Here, the bottom of the tray
bracket stops the hinge from over-extending, so the tray doesn’t ‘hang’
from the legs
The tray attaches to the legs with the leg braces. This
connection doesn’t need to be tight. Tightening here will add
friction, making it harder to open and close the legs. Use the 3”
bolts here.
And this is basically it. I added chair feet to the bottom of the
legs to protect the ends. (And to protect my floor when storing it)
This gets your mount off the ground. And that’s all it does. It’s
up to you, now, to come up with a mount that will sit on this
table. The hole in the center of the table is optional. A DOB-type
mount can easily be added. An equatorial can also be added.
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