A handwriting tool includes a paper holder having a writing surface, a longitudinal axis, an upper section, a lower section, and a plurality of spaced-apart line stations disposed parallel to the longitudinal axis. A writing guide is connected to the paper holder, the writing guide is slidably positionable along the longitudinal axis. The writing guide has a stop which is engagable with each line station of the plurality of spaced-apart line stations. The writing guide includes a transverse upper writing edge which is positionable in the upper section of the paper holder, and a transverse lower writing edge which is positionable in the lower section of the paper holder.

A carpenter tool including a body having a first edge and a second edge, a bubble level carried in the body, the bubble level having a tubular sidewall terminating at opposed first and second closed ends. The tubular sidewall has a first section and a second section, wherein at least one of the first and second sections is parallel to at least one of the first and second edges. The first and second sections are oriented normally with respect to each other. The first and second sections are joined to each other in fluid communication and partially filled with a fluid and a bubble in the fluid, such that the bubble is enabled to move between the first and second sections freely.

A drawing apparatus is provided. In the apparatus plural drawing tools for applying ink on an object are held by plural drawing tool holding units respectively. A drawing unit takes one of the plural drawing tools from the plural drawing tool holding units to draw an image on the object. An imaging unit images an identification image, which includes first information representing colors of inks to be applied respectively by the plural drawing tools and second information representing an arrangement of the plural drawing tools held in the plural drawing tool holding units. A controlling unit controls the drawing unit to draw a design image having at least one color on the object, based on the first and second information included in the identification image and the color of the design image.

A drawing apparatus including a drawing head to which a drawing tool is mounted, the drawing tool drawing on a drawing object; a drawing testing portion having a drawing media on which an image is drawn by the drawing tool; and a control unit.

The control unit interrupts drawing on the drawing object by the drawing tool and attempts drawing on the drawing media by the drawing tool in the drawing testing portion when the drawing on the drawing object by the drawing tool is not performed correctly.

A drawing device for drawing an object on a workpiece using a pen includes a holder, a movement portion to move the holder, a rotation portion to rotate the holder, and a memory storing, for each of a plurality of line segments configuring the object, drawing data relating to a position and a length of the line segment, and angle data relating to a rotation angle of the holder. The drawing device acquires the drawing data and the angle data of a preceding line segment from the memory, rotates the rotation portion in accordance with the angle data, and draws the object by controlling the movement portion in accordance with the drawing data. The drawing device acquires the drawing data and the angle data of a subsequent line segment continuously subsequent to the preceding line segment, rotates, and draws the object in the same manner as the preceding line segment.