This simple device facilitates the use of any tube, helping to squeeze it evenly and gently. It consists of a base in a hole which is inserted the tube, and turning a key with slit for exciting a planar end of the tube. The base and key are made of wooden bars of appropriate dimensions. Their interaction is clear from the figure.
Recommend to read
DRILL IS THIN AND LONG
To drill the axial bore of small diameter into a long cylindrical part is not so easy even on the machine — drill was almost certainly "will lead". To gain maybe a simple jig made from a...
VISOR FOR SUN LOUNGER
Nice to soak up the sunshine, sitting in a lawn chair. However, it would also be good to read, it's very blinding. Make a movable shelter made from fabric and pieces of wire,as shown...
