RIScov.pag

Adjustable Shopmade Clamps

W

OODWORKERS NEEDING TOedge-join boards on a regular basis
should consider using slotted-steel angles to construct a
clamping jig. The slotted angle is available in a variety of weights and
strengths for use in shelving systems in libraries and warehouses. Holes
or slots are punched along the length of the material for a variety of
bolt placements.
A clamping jig can be made by fixing two pieces of the angle
together with bolts and wing nuts at each end. One bolt secures a
fixed spacer the same thickness as the planks to be edge-glued. The
other bolt holds a cam clamp, also of the same thickness, which applies
pressure to the plank edges when the whole clamp is assembled.
—A. W. CLARKE,Moonta Mines, Australia

CHAPTER NINE

Scrap block,

same thickness

as workpiece

Slotted

steel angle

Pivot cam applies

clamping pressure.