Bob Ammerman wrote: > > Roman, > > Since you are interested in compresion / extension and not bending or > torsional strength you might be better off with long slots than round holes. Bob, thanks for the input, but how the heck are we supposed to drill elongated slots?? We have lots of time and labour, but very limited equipment and budget. :o) -Roman -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics