I started with a feasibility study of making a clamp from PVC pipe here: https://www.instructables.com/id/DIY-PVC-Clamp/

When I published that I'ble, I found there were other Instructables about PVC clamps, but they all required 2 hands to use the clamps. That's not always an easy option, since your other hand is holding the pieces you want clamped.

This is my third version, and it only requires 1 hand to use. Let me show you how it's made.

Step 1: TOOLS & SUPPLIES

TOOLS:

Hack saw, Sawzall, or chopsaw

3/8" drill

1/8" & 3/8" bit

Large bench vise

SUPPLIES:

4" PVC pipe 1.25" long with 1/4" wall thickness

2 - 3/8" steel rods 7" long or longer

Epoxy or equivalent to secure 3/8" rods in holes (may be necessary if the holes are a little too big)

Step 2: CUT PIPE

Cut the 4" PVC pipe into a 1.25" band. I used a chop saw.

Step 3: CUT SLOT IN BAND

You can use a hack saw or Sawzall. I used an air reciprocating saw.

I have some 1/8" rotary blade air saws, but I wanted a really narrow "cut" (AKA the "center").

Step 4: DRILL HOLES IN THE BAND

I measured 1" from the center and drilled a pilot hole with a 1/8" bit. I then measured 4.5" from the center and drilled another pilot hole. I repeated this on the other side of the center. I now had 4 pilot holes.

I tightened the band in the vise, aligning the pilot holes drilled on one side of center with the top of the vise. OK, that's rather confusing, but I needed to align the hole drilled !" from center with the hole drilled 4.5" from center, so I could insert one rod for a handle.

I then drilled through both holes with a long 3/8" bit. I repeated this on the other side for the other rod. No bolts, no rivets, no pop rivets......and the rods are strong.