Quite an Unusual one

[Boyan Silyavski]

Would you mind stating which WS system you used. ie the hardener ..Clive

WS 105+209 of course.

I said here that my cross channels were 10mm wide but they should have been wider, I think that's part of the problem, maybe the channels should all be the same width.
http://www.mycncuk.com/threads/6565-...4474#post54474

Mine are 30mm wide. On the small machine they were 10mm and it worked. Maybe at such lengths should have been 45mm also, same as the rails channels.

If i had 3000mm straight edge i would have told you exactly what happened. Checking with the 1000mm one says the area near the cross channels is down.

Just measured it at the deepest spot 0.15mm difference.

I am starting to doubt if i should have semi filled the epoxy with something. It would have helped. And yes, WS 105+209 shrinks like crazy on 3000mm length. Visibly. You know that last time i fixed 5mm magnets to check levels. So it covered the magnets and when dried, one magnet was half out, so on 5mm thick/high all went down 0.5mm at least which is more than 10% if you know what i mean. The good thing is that it shrank equally wide wise. Not like the cheaper epoxy. But still 5kg pack
200euro...

PS. and no, it did not went down in between cause it was done so that it couldn't do it, so that's not the problem