GA,
I will try to take some better pics for you in the next few days. And ill show you what ive done to improve things. I have actually built myself another one of these pedels and i have it set up to control the on and off of a smaller torch (a GTT Bobcat) that i have mounted on top of my CC. I use it when im working some colors that are touchy about the CCs reducing flame.
One thing im not sure you noticed is the angle of the support for the valves. That is really what makes the thing work. The 2 basic pieces of wood have to be joined on that angle so the pull on the two valve handles is as straight as it can possibly be considering it is moving on a curve.
I will post some more pics for you in the next couple of days.

Khan

Sounds good. I will keep an eye out.

The valves used above are gas rated ball valves. These type valve are not very good for flow adjustment as the port opening is not linear and has a rather short stroke. There are valves that are made to be linear and still have a short stroke but they are expensive.

PJ

Being the new owner of a Bravo with no footpedal, I've been following this thread for a while. It is very interesting and informative to me so thanks for sharing this great information, everyone.

-BEP

Link?

I am posting a few other pictures of my footpedals. The only 2 improvements i am showing here is the change to a turnbuckle from the rocker board connecting to the valve handles. That makes it so i can adjust how the board moves the valves and how much play is in the connection.
The other thing is i added a toe stop on the rocker board so i can feel where my foot is a little easier.
I hope these help you build yours. Post some picks so we can see what you come up with.
Attachment 135578

Attachment 135579

Attachment 135580

Nice. I'm nowhere near ready to tackle something like this, but when I am, this is going to be incredibly helpful.

-BEP

Here is one variation.

http://www.valtorc.com/valves/indust...ll-valves.html

PJ

Would be nice if you could get the V slot valves like those but in the same form as the normal ball valve. That would be great control but i havnt seen them. I would change mine out if i could find them.

Khan

Bump