I've spent the last two days using the leftover materials from the last pochade box to make a new one - this one is more of a palette box that sits on the tripod, then the canvas / panel sits on a riser attached to the camera mount.

With this box I get more mixing room and it can handle a much bigger painting surface (depending on the wind !)

After cutting the leftover recyled jarrah decking cut to size I made the box sides and attached panels made from leftover thin verneers of Camphor wood.

After checking the sides work I did a lot of sanding to get it all flush.
The middle palette slides out for access below (where I'll store paints and stuff), though it was sticking out too far with the jars in there so I cut checks out of it. It's made of aluminium composite panel that just happened to have a nice green backing colour on it.

Mounted on the tripod with temporary wooden teeth / holder things at the back. Then I spent a few hours cutting / making a little latch out of a small sheet of copper.

On to making a dodgy upright / mast to hold the canvas or panel that I'll paint on, it has the camera tripod mount attatched to the back of it and can handle a decent sized canvas.

I then took the temporary teeth off the back, cut grooves in with a little saw and made these moveable metal ones instead - they retract when the box is all closed up so I can put it down on the ground without it falling over.

And viola! all assembled ready to paint! The little brackets doing their job holding it on the tripod.
I need to adjust these so it sits higher up but it works fine so far.

I also added little holes along the sides so I can stand brushes up that I'm using, can't wait to use this one - so much mixing area!!