|Forum topic by Matt||posted 10-31-2013 04:39 PM||901 views||0 times favorited||4 replies|
10-31-2013 04:39 PM
Howdy all, I scoured the site but couldn’t find a related post in the past so hopefully I’m not rehashing something that’s just been discussed. I have the large front vise that Lee Valley sells and had it previously installed on my doug fir and tamarack bench using two doug fir jaws. I noticed right away that when clamping, the vise would rack from top to bottom. To put it another way, even though I’d planed away the bottom of the front jaw, when I tightened down on the vise the top of the front jaw would rack away from the workpiece. I thought it was due to using a relatively soft wood for the jaws so in my bench tuneup I picked up some maple to redo the vise.
Long story boring, just finished up with the new jaws and the exact same thing is happening. It’s almost like the lead screw is basically pulling the whole thing out of alignment when it gets tight. The main issue I have with this in the first place is that the top of the workpiece is never supported when clamped so it vibrates like crazy when I try to saw.
Hopefully this makes some kind of sense, and I’d appreciate any help quite a bit. It was pretty disappointing to go through the 20 something steps only to land back on the same problem! Thanks much,