The Problem

The Problem 1


The Problem 2

The present way of clamping timber or other material involves the use of multiple clamps. In the example shown here, the construction of a breadboard, the job requires a total of 8 clamps or screw type devices. It is time consuming and cumbersome.

Sash cramps are the mainstay of wood working and are used in a variety of situations. Here they are used to assemble a breadboard made up of a number of small pieces of timber.

As the sash cramps only provide pressure horizontally, the job will become misaligned unless vertical pressure is added. Sacrificial packers and g-clamps must be used conjunctively to counteract this problem.

As the timber is placed under gradual pressure on the edges rather than centrally, the job may warp. A warped job results in wasted time as planing and surfacing is then required.

With the manual force required on each clamp, completing such a job can be strenuous work for some people. Additionally, it may be impossible for those with a loss of dexterity of the hands.

The clamps themselves are not immune from the high forces involved. Sash cramps are well known for their bowing that occurs over time. Once this happens the clamp is of no use as the timber can pop out of the ends.

All of these problems are solved with the CompressX® clamp.