Tips on building crab pots
Lots of theories on grounding the pots, adding zinc, dissimiliar materials, etc.... I dont subscribe to all of them.
I like to use 1/2 inch rebar but these were 3/8 so my kids can pull them a little easier as they are still little. Kinda light but I can always add weight for dropping them in the ocean, cant take it off once there built. :tongue:
I dont care for pots that have the tunnels tied and stretched across the pot by wires pulling the opposing doors towards each other as the pulling wires are in the way when emptying the pots. I like to weld in the frame for the tunnels so the middle of the pot is open.
You will need at least a little bit of stainless at the top of the doors for the flappers to work better as if you coat or wrap it with rubber they probably wont operate smooth unless you got a fancy coating that is slick and would hold up.
Everything I expose I make stainless, door hinges, 4 inch escape circles for little crab, entry in tunnels. From the scrap stainless pile at the local steel yard.
There is a reason Protoco coats their pots in rubber than wrapping them and I am sure it has to do with speed and effeciency. By the time I cut rubber strips a couple inches wide several feet long and wrap it nice and tight and then tie the ends down and start with a new piece of rubber it is a lot of work and is slow. I dont have a means to dip them and I am sure spraying with bedliner would cost me something, I get innertube or as in this batch pond liner, for free so that is the driving force for me

If I wanted to part with what little money I have I could just go buy them and be done
I get the wire at Englunds, they have more than one diameter I recently found out when the wire seemed heavier than wire in the past. You buy it by the pound so obviously the smaller diameter the more footage you get for the same price. This was the heavy stuff I got last time. I have never broke wire on any pots yet so I dont know at what diameter that becomes a problem.

I got $20 worth and it will do all 3 pots, I think it was 5 lbs but dont remember.
My pots are 16 sided because I made a jig to bend the rebar around. They get pretty close to being a circle :tongue: but if I ever lose one it is obvious they are mine as nobody else is making a 16 sided pot

Bending the rebar around a barrel, or tire or what ever works as long as you can repeat the size.
I have made pots with 4 doors and 2 doors and dont notice a difference in catch so have stuck with 2 doors as it is less work.
I am sure the rebar is rusting away beneath the rubber

Have not had one rust enough to fall apart yet and have some pots I have been fishing since 1997 I made.
I wrapped a pot in garden hose one time. It was easy to take my old garden hose and slit it full length with a knife and just put it on the rebar, way easier than wrapping in rubber. it is a funky looking thing, I was afraid it would rust really fast since some metal is exposed and maybe create a hot pot that repelled crabs. It is one of my top producing pots

go figure
When wrapping a pot with wire if you try to wrap the wire on a slick surface it is hard to do. One of the doors I made the frame out of a piece of stainless. The wire wants to slide left/right as you wrap the wire.

The other 2 pots I went back to my rebar door with a piece of stainless rod bent in a circle and welded to the rebar door at the ends for the hinge. I wrap the rebar with rubber and leave the bent circle exposed to hinge and not bind due to rubber binding the hinge point. The wrapped door is easier to tie as the wire sticks to the rubber and cost less than stainless. For a hinge point I weld a 3/8" stainless bolt on the frame and the bent circle is smaller than the head of the bolt so it cant come off.
I figure I have about $20 in materials per pot. Not a huge savings, but I can get 3 pots for the price of buying 1 +/- with a little labor which is free after 4pm on weekdays and weekends (in the winter). When your running 12 pots that makes a difference
A good jig goes a long ways in making the pieces all the same. My jig repeats the circle, makes the door frame, bends the hinge circle, makes the vertical and tunnel legs all the same length & makes the escape holes.