lumberjack_jeff
Tue 22 December 2009, 17:17
We're all influenced by our backgrounds. Here's the kind of workholding clamp a lumberjack might devise.
http://i3.photobucket.com/albums/y58/lumberjack_jeff/001-7.jpg
Top view, a sign blank is clamped in place.
http://i3.photobucket.com/albums/y58/lumberjack_jeff/004-2.jpg
Another top view with sign blank clamped in place.
http://i3.photobucket.com/albums/y58/lumberjack_jeff/006-1.jpg
Top view, nothing clamped. Note the dogs placed in the holes.
http://i3.photobucket.com/albums/y58/lumberjack_jeff/009-1.jpg
Underside view, showing the all-thread slot. I'll come up with a better handle knob eventually.
I laminated a bunch of hemlock boards into one 102" x 16" x 1.25" plank.
I then set my tablesaw at 15° and ripped the plank into three pieces by taking 2 1/2" off each long side. The center piece was then shortened 6 1/2". The remaining 95.5" long chunk was cut 30" from one end.
The two edges and the longest center piece were then reassembled and glued. The plank now has a dovetail section in which the 30" long piece can freely slide.
Now surface the whole thing on your MechMate, both sides, cut an array of 1 1/2" square holes, 6" on center in both the plank and the dovetailed sliding piece.
Rout a groove and some crosswise notches in the underside of the sliding piece to accept a chunk of all-thread (I used 1/2") and nuts. Drill a matching hole through your end-piece and attach a handle to the all-thread.
Cut at least four blocks, 1 3/4" x 1 7/16" x 1 7/16". Finish the assembly if desired. I used linseed oil.
In use, it's necessary to clamp the assembly to the tabletop.
http://i3.photobucket.com/albums/y58/lumberjack_jeff/001-7.jpg
Top view, a sign blank is clamped in place.
http://i3.photobucket.com/albums/y58/lumberjack_jeff/004-2.jpg
Another top view with sign blank clamped in place.
http://i3.photobucket.com/albums/y58/lumberjack_jeff/006-1.jpg
Top view, nothing clamped. Note the dogs placed in the holes.
http://i3.photobucket.com/albums/y58/lumberjack_jeff/009-1.jpg
Underside view, showing the all-thread slot. I'll come up with a better handle knob eventually.
I laminated a bunch of hemlock boards into one 102" x 16" x 1.25" plank.
I then set my tablesaw at 15° and ripped the plank into three pieces by taking 2 1/2" off each long side. The center piece was then shortened 6 1/2". The remaining 95.5" long chunk was cut 30" from one end.
The two edges and the longest center piece were then reassembled and glued. The plank now has a dovetail section in which the 30" long piece can freely slide.
Now surface the whole thing on your MechMate, both sides, cut an array of 1 1/2" square holes, 6" on center in both the plank and the dovetailed sliding piece.
Rout a groove and some crosswise notches in the underside of the sliding piece to accept a chunk of all-thread (I used 1/2") and nuts. Drill a matching hole through your end-piece and attach a handle to the all-thread.
Cut at least four blocks, 1 3/4" x 1 7/16" x 1 7/16". Finish the assembly if desired. I used linseed oil.
In use, it's necessary to clamp the assembly to the tabletop.