OK.  I think I have it, now, Jeff.

The problem Wayne and I have is that when making (predominantly), right angle joins, the parts slide out of position.  The MEK reduces the friction between the two (it becomes a kind of white slimy secretion), and they creep out of place during the 12 - 24 hour set up time.

I'm guessing here, but if you laid the tape on one of the part and then pressed the other part on to it, that might work.  Perry and I have dealt with the problem by making up jigs or braces which will hold the parts in place while it sets up.

You can't just stand them up and paint it on either, as sometimes, as the weight of the brace can cause them to move once the contact between the parts becomes lubricated with the MEK.  I mark the positions now.  I keep going back and checking that it's not sliding away, for a few hours; using the marks as reference points.

Well fitted MEK joints are almost unbreakable, but poorly fitted ones will break apart easily.  The rule of thumb is that the one you have to pull apart to change, will be the one you fitted well.  :roll:

I'd confirm that DST isn't suitable for the corner joints Max and, given the type of bond you get with solvent (that "goo" of disolved plastic slowly setting), I'm not even sure any tape would stop the "slip".

It's a similar type of joint to woodworking and there, you'd either use pins (not practical with plastic) or rigid clamps until the glue has set.  I think you'll just have to go with the inconvenience of the "clamps" for corner joints but I really would give the DST a try for the layering.  If you set the inner layer back by the thickness of the outer layer, you'd end up with a compound corner joint which is incredibly strong.

It all sounds pretty plausible, Peter.  I just realised that I've finished the building phase of the NR.  Now I've got all this new knowlegde, I'd better make another one . . . . .     Nooooo   Jimmy   :thud

If you don't have a use for the second one Max, I could maybe find somewhere to put it out of your way …………:cheers

You may well find the best and cheapest option for thin DST is to go to a carpet/carpet laying outlet.


Doug


 

In the UK, it's certainly the cheap shops like "Poundland" and "Poundstrecher" that come up best price and they all seem to have stock. I've also occasionally found stock at Lidls and Aldi.
Not sure how many of this type of store is in France though.

We do get Lidl Jeff but I've never seen an Aldi in our area.  Having said that, they do seem to stock a totally different range of products to the UK stores.