A writing utensil adapted for promoting the development of a tripod writing grip includes an elongate body having a substantially polygonal cross section, and having three faces extending between a proximal end and a distal end thereof, and a boss member extending from an intermediate portion of the elongate body, the boss member being adapted for impeding a user's fingers from sliding along a longitudinal axis of the elongate body.

A machinable wax with plastic additive and method of manufacture is shown and described. The machinable wax with a plastic additive includes between twenty-five (25) percent and thirty-five (35) percent of the polyethylene (PE) Wax by volume. The machinable wax includes between thirty-five (35) percent and forty-five (45) percent of LD polyethylene by volume. The machinable wax also includes between ten (10) percent and twenty (20) percent of micro crystalline wax by volume and between seven (7) percent and twelve (12) percent of paraffin wax by volume. In some embodiments the machinable wax includes between three (3) percent and six (6) percent of acetic acid ethenyl ester by volume. In some instances, the machinable wax has less than or equal to one (1) percent of colorant by volume added.

A method of manufacturing an implant is disclosed. The method includes preparing a wax template assembly based upon anatomical characteristics of an implantation site. Post formation of the template assembly, a lamination layer is provided over the template assembly resulting in a laminated template assembly. The lamination layer is composed of at least one polymer dissolved in one or more solvents. One or more coating layers of a pre-defined coating material are provided over the laminated template assembly to prepare a mold. The mold may then be sand-rained to form a sand coated mold. The sand coated mold may be de-waxed and baked for melting out the template assembly to form a de-waxed mold. A casting material is then poured over the de-waxed mold to form a casted mold which is cooled and solidified to form a casted implant which is further heat treated and finished to form the implant.

A method of forming a device of composite material includes providing a mold having an internal space forming a cavity with an inner surface, the cavity having a shape corresponding to an inner shape of the device to be formed, placing inserts at one or more pre-defined positions along the inner surface, holding the inserts at the one or more positions, introducing removable material into the cavity of the mold to form a pattern having the inserts fixed therein when the removable material is in solid form, and removing the pattern having the inserts fixed therein from the mold.

A method for manufacturing a cosmetic stick having at least two different colored portions includes inserting a pin into at least one mold cavity of a mold body, filling the mold cavity containing the pin with a first cosmetic material of a first color, and then recovering the excess first cosmetic material from a top surface of the mold body. The pin is removed from the mold cavity leaving a void in the mold cavity, and a guard plate is placed over the top surface of the mold body, the guard plate having a hole over the mold cavity. The void in the mold cavity is filled with a second cosmetic material, the second cosmetic material being a second color that is different than the first color. The excess second cosmetic material is then recovered from a top surface of the guard plate.

Method and system for dispensing molten wax into molds by means of a desktop apparatus is disclosed. The invention being comprised of a heating chamber, temperature controller, metering dispenser, adjustable base, lighting strip and protective viewing cabinet. Said invention allowing wax to be melted and maintained at a temperature below the melting point of mold materials such as; but not limited to, filaments commonly used in 3D printing and the like. An object of the invention is to allow users to quickly position and fill custom molds for fabrication processes such as candle and jewelry making.

The present disclosure provides a method of investment casting using additive manufacturing. In one aspect, the method includes: creating a digital model of a building component using one or more software tools executed on a computer device and importing the digital model in an additive manufacturing apparatus; producing a first physical specimen by controlling the additive manufacturing apparatus in accordance with the digital model; creating a first negative mold using the first physical specimen as a template, the first negative mold having a hollow space substantially defined by a surface profile of the first physical specimen; producing a second physical specimen using the first negative mold; creating a second negative mold enclosing the second physical specimen therein; producing a casting piece using the second negative mold; and finishing the casting piece to produce the building component.

Embodiments of the invention are directed to an automated crayon-molding device comprising a crayon-receiving member, an automated heating element, a crayon-melting chamber that is heated to a melting temperature by the automated heating element, and at least one mold. The crayon-receiving member receives the crayon at one end and has a closure mechanism at another held, preventing the crayon from entering in the crayon-melting chamber until it reaches a melting temperature. Once the inside of the crayon-melting chamber, the crayon melts and drips into a mold configured to receive melted wax. Embodiments of the invention also include a method for assembling an automated crayon-molding device and a system for molding crayons that includes a crayon-receiving member, an automated heating element, a crayon-melting chamber, a drawer positioned underneath the crayon-melting chamber, and at least one mold.

The present invention relates to a method for producing a negative skin and a tool. Such a tool can be used, for example, in the automotive industry.

The invention relates to a molding material, consisting of or comprising an organic binder, the organic binder being a wax or comprising a wax; and a filler mixture, the filler mixture comprising or consisting of a mineral filler and a fibrous material, wherein the wax is contained in the molding material in a content of between 3% by weight and 23% by weight, and wherein the mineral filler is contained in the molding material in a content of between 75% by weight and 95% by weight. The invention further relates to a molded part made of such a molding material, a method for producing a molded part, and the use of a molding material for forming a molded part.