A seal carving apparatus includes a thermal head having a plurality of heat generating elements disposed in lines, and thermal drive control means that performs a control process of selectively and thermally driving the individual heat generating elements while moving the thermal head and a porous material in relative to each other with the thermal head being in abutment with the porous material, thereby forming a seal face on the porous material. The thermal drive control means controls a pulse time width for thermally driving the individual heat generating elements of the thermal head under pulse width modulation control based on gradation image data having a gradation value, thereby forming a seal with a gradation on the porous material.

A seal carving apparatus includes a thermal head having a plurality of heat generating elements disposed in lines, and thermal drive control means that performs a control process of selectively and thermally driving the individual heat generating elements while moving the thermal head and a porous material in relative to each other with the thermal head being in abutment with the porous material, thereby forming a seal face on the porous material. The thermal drive control means controls a pulse time width for thermally driving the individual heat generating elements of the thermal head under pulse width modulation control based on gradation image data having a gradation value, thereby forming a seal with a gradation on the porous material.

A stamping tool may include a base and a cover. The cover is removably affixed to the base through a hinging assembly. The base can include a first base hinge and a second base hinge substantially perpendicular to the first base hinge. The base hinges can include hinge sections. The hinge sections can include a first wall and a second wall that can be biased to define a cavity that is accessible through a channel between the first wall and the second wall. Hinge sections can be separated by one or more receptacles. The cover can include one or more hinge bars corresponding to the hinge sections on the base. The hinge bars can have an unequal aspect ratio allowing for easy insertion and removal of the cover. The cover can also include one or more protrusions separating the hinge bars. These protrusions correspond to the receptacles on the base.

A stamping tool may include a base and a cover. The cover is removably affixed to the base through a hinging assembly. The base can include a first base hinge and a second base hinge substantially perpendicular to the first base hinge. The base hinges can include hinge sections. The hinge sections can include a first wall and a second wall that can be biased to define a cavity that is accessible through a channel between the first wall and the second wall. Hinge sections can be separated by one or more receptacles. The cover can include one or more hinge bars corresponding to the hinge sections on the base. The hinge bars can have an unequal aspect ratio allowing for easy insertion and removal of the cover. The cover can also include one or more protrusions separating the hinge bars. These protrusions correspond to the receptacles on the base.

In an example, a clamp may include a roller disposed on a swingarm, a slide disposed on the swingarm that may apply friction against the roller in a first position and in a second position, a cam to engage with the slide, and a latch to retain the slide in the second position. The slide may move from the first position to the second position as the slide moves along the cam, and the slide may apply a greater friction against the roller in the second position than in the first position.

A stamping tool may include a base and a cover. The cover is removably affixed to the base through a hinging assembly. The base can include a first base hinge and a second base hinge substantially perpendicular to the first base hinge. The base hinges can include hinge sections. The hinge sections can include a first wall and a second wall that can be biased to define a cavity that is accessible through a channel between the first wall and the second wall. Hinge sections can be separated by one or more receptacles. The cover can include one or more hinge bars corresponding to the hinge sections on the base. The hinge bars can have an unequal aspect ratio allowing for easy insertion and removal of the cover. The cover can also include one or more protrusions separating the hinge bars. These protrusions correspond to the receptacles on the base.

A stamping tool may include a base and a cover. The cover is removably affixed to the base through a hinging assembly. The base can include a first base hinge and a second base hinge substantially perpendicular to the first base hinge. The base hinges can include hinge sections. The hinge sections can include a first wall and a second wall that can be biased to define a cavity that is accessible through a channel between the first wall and the second wall. Hinge sections can be separated by one or more receptacles. The cover can include one or more hinge bars corresponding to the hinge sections on the base. The hinge bars can have an unequal aspect ratio allowing for easy insertion and removal of the cover. The cover can also include one or more protrusions separating the hinge bars. These protrusions correspond to the receptacles on the base.

In an example, a clamp may include a roller disposed on a swingarm, a slide disposed on the swingarm that may apply friction against the roller in a first position and in a second position, a cam to engage with the slide, and a latch to retain the slide in the second position. The slide may move from the first position to the second position as the slide moves along the cam, and the slide may apply a greater friction against the roller in the second position than in the first position.

A stamping tool is provided including a base and a cover. The cover is removably affixed to the base through a hinging assembly. The base can include a first base hinge and a second base hinge substantially perpendicular to the first base hinge. The base hinges can be one or more hinge sections. The hinge sections can include a first wall and a second wall that can be biased to define a cavity that is accessible through a channel between the first wall and the second wall. Hinge sections can be separated by one or more receptacles. The cover can include one or more hinge bars corresponding to the hinge sections on the base. The hinge bars can have an unequal aspect ratio allowing for easy insertion and removal of the cover. The cover can also include one or more protrusions separating the hinge bars. These protrusions correspond to the receptacles on the base. A method of stamping an article is also included wherein the stamping tool is provided. The cover is placed in an open position relative to the base. A stamp is adhered to the bottom surface of the cover. The article to be stamped is placed on the top surface of the base. A quantity of ink is applied to the stamp and, as the cover is placed in a closed position, the stamp is brought into contact with the article thereby stamping the article with the ink.

A stamping tool is provided including a base and a cover. The cover is removably affixed to the base through a hinging assembly. The base can include a first base hinge and a second base hinge substantially perpendicular to the first base hinge. The base hinges can be one or more hinge sections. The hinge sections can include a first wall and a second wall that can be biased to define a cavity that is accessible through a channel between the first wall and the second wall. Hinge sections can be separated by one or more receptacles. The cover can include one or more hinge bars corresponding to the hinge sections on the base. The hinge bars can have an unequal aspect ratio allowing for easy insertion and removal of the cover. The cover can also include one or more protrusions separating the hinge bars. These protrusions correspond to the receptacles on the base. A method of stamping an article is also included wherein the stamping tool is provided. The cover is placed in an open position relative to the base. A stamp is adhered to the bottom surface of the cover. The article to be stamped is placed on the top surface of the base. A quantity of ink is applied to the stamp and, as the cover is placed in a closed position, the stamp is brought into contact with the article thereby stamping the article with the ink.