Went into the Lab Today!

[Andy Allen]

how you going to get over the benches breaking...

 

[charlie1]

had another think about calculating the force applied to the plywood in our experiment and came up with the idea of using a torque wrench to turn the screw thread when we do the experiment , I have been looking on ebay and I can get a digital one or I can buy a conventional one from Halfords

Gary, why not just ditch the clamps on the bench and apply the force with heavy weights, wont go in to details ,im sure you could rig something with some rope

 

[Spud]

how you going to get over the benches breaking...

not going to use a work bench ,I went to see Ray today and we did a trial of a couple of ideas we had and the forces involved are far to high for work mate benches,we have managed to get one design jig to seperate the ply wood and transfer a crack through to the tile but it has worked out to be a more complex than we anticipated ,that said once we have the test rig made it will be easy to complete the test and get the results and we are on the right track now

 

[Colour Republic]

I think the biggest obstacle you have is when trying to either push or pull the ply apart that you manage to keep it flat, the few ideas I came up with in my head for jigs the other day would mean the ends would want to buckle up (or down) as you did it

 

[Aston]

rob colour rep makes the valid point..buildings move throughout the year!!

ply is screwed to joists
joists rest on walls
walls are built on foundations
foundations rest on the ground
the ground moves throughout the year..expands in winter and with rain,, contracts in summer

so with that in mind, i'll keep using them when the situation demands...anyway, schluter have only modified/evolved decouplers for timber floors from what the romans first created for laying stone