Parametric pneumatic cylinder

Pneumatic cylinders are useful in actuating various devices whenever pressurized air is available. This customizer allows to generate cylinders with arbitrary bore sizes and stroke lengths and has many other adjustable parameters.

Two main options are available for tube sockets: M5 and 4 mm. The M5 type allows insertion of M5 pneumatic fittings, e.g. the [RIKI 4 x M5](http://www.compatiblepneumatics.com/nr_111_riki-4-x-m5-sample-1-piece_IK0212345001). For the 4 mm type, three variants are available: a plain 4 mm socket, one with locking clamp and a locking clamp version with integrated support.

Compiling the scad file also generates output text (visible in OpenScad) which lists the required dimensions for additional parts, such as the rod, seals and fasteners. For convenience the STL files of the gold cylinder (bore 16 x 16 mm, stroke 30 mm) and red cylinder (bore 30 x 24 mm, stroke 50 mm) are provided, along with the seal cutter blocks. New parametric seal cutters can be created