Make Plastic Molds

Cast kirksite cavities from SLA models can provide excellent rapid tools for prototype and bridge to production injection molding parts. Parts can be molded make in two to three weeks in any thermoplastic production resin, this technology has been around for many years, but with the growth of stereolithography and the need for rapid turnaround of plastic parts in the correct production material, the kirksite approach has re-emerged. More complex parts can be made using handloads. Injection molding tapers are important and are best incorporated in the master file. One of the advantages of kirksite aluminum/zinc alloy moulds is the ease of making geometry modifications by either welding or adding inserts. Another main benefit is the ability to mold most materials.

Purchasing the box, some assorted socket rails, and some additional clips for the socket rails, I took the box home with me to see how well it would stand up as a replacement. The box is quite simple in construction. It's a plastic injection molding case made of a very thick plastic. The case consists of a flip open lid (with two latches that are padlock compatible) plastic covering a deep top storage area, and three drawers that are very similar to the large rolling tool chests that many professionals and advanced amateur home mechanics have in their garages. When you flip the lid open, the lid will immediately release the latching mechanism for the three molds drawers. Unfortunately, the lid does not contain any hinges or tethering that prevent it from flopping open and hitting itself on the back of the tool box. This was my only gripe involving the tool box.

For homeowners who do not need a specific design recreated or reproduced, pre-made products are generally a far more cost-effective way to take advantage of plastic injection molding technology. Many companies offer a wide range of pre-made products made from plastic injection molding and chances are, you already own many of these products. One of the most common uses of the procedure for home building and design make products is in making trim, ceiling medallions, crown moldings and similar decorative products. These products are often more durable, lightweight, and easier to install than wood, plaster, or other more traditional materials, yet can be stained or painted to have the same classic look. This is but one of the many possibilities for the versatile technology of plastic injections molding.

Making polymers is a fantastic science. Then there is the matter of shaping the plastic into useful objects....another fantastic science. One of the most common methods of shaping plastic resins is a process called injection molding. Injection molding is accomplished by large machines called injection molding plastic machines. A type of mold used in the process of injection molding. The mold usually comprises two sections held together by a clamping device with sufficient strength to withstand the pressure of the injected, molten plastic. The mold is provided with channels for heating, cooling and venting.