When I made the 1500mm x 1500mm Table top for my Son I needed some big Panel Clamps Like 1800mm or there abouts.
I didnt have any thing that big so I went looking for Commercial Panel Clamps
I found quite a few panel clamps and list them below, there is possibly more as well.
Damstom D 300 Black edition about $38 each
Woodtek Equi pressure Clamps about $25 each
Frontline Engineering Clamps about $400 each
Woodriver Clamps about $31 each
Double Bar Clamps kits anout $54 each
Plano Panel Clamps about $219 each
Apart from the Damstom, all the clamps in the $25 to $54 required the user to supply their timber rails to suit the dimensions required.
The Frontline and Plano panel clamps had extension units to make them longer.
I could have also been able to buy 4 x sets of parallel Jaw clamps as well.
So I was up for a large capital outlay ($1000) if I went this way.
Otherwise buy timber rails rails and make my own.
The top end Panel Clamps were way beyond my hobby budget but I liked the principle.
I am not saying they are not worth it either!
To overcome the $ problem I bought two lengths of 40mm Unistrut at 6m, a heap of bolts, wing nuts and spacer washers.
I have a good friend who is a “gun” metal fabricator and he made the clamping assemblies for me at nil cost, (well may be there was a slab of beer in there somewhere)
The Panel Clamps in use with the 1500 table panel
The Panel Clamps in use with the CFrye Pizza Peel
It was the posting of the Pizza Peel blog which prompted to Clamp blog post.
How I did it.
Cut the unistruts into six 2 m lengths using a metal cut off saw
Buy a heap of wing nuts bolts and spacer washers, you dont need as many as you see I have!
So lets look at everything:-
The fully assembled Clamp
The clamping assembly
The rear support bolts
The clamping end (top)
The other end
Costs of Material:-
2 lengths of 40mm x40mm Gal unistrut $132
Bolts Washers and wing nuts $60
The Clamping mechanism (locally Made)
So do they work?
You judge for yourself
The Piza Peel out of the clamps and a straight edge sitting on top in various positions and sides, after I scraped the glue residue off.
In their 2 m form they are a bit unweildly so I intend to buy another length of Unistrut and cut it into shorter lengths, hence all the addition bolts etc.
-- Regards Robert