A hot melt glue gun includes a charging cylinder mounted to the rear of the gun with chambers for holding solid glue sticks. The cylinder is mounted to the hot melt gun housing via a centered shaft allowing it to revolve circumferentially. The cylinder is mounted in a position on the back of the glue gun so that each chamber when rotated to the top aligns with the glue stick entry port in the back of the glue gun. Each chamber has resilient flanges within the chamber that cause friction when a glue stick is inserted into the chamber, thus lightly securing the glue stick before it is pushed forward into the glue gun port and taken up by the trigger activated forward grip.

A three-dimensional drawing device can include a housing configured for to be held in user's hand, shaped to allow manipulation of the housing like a pen, and configured to accept a strand of thermoplastic material. The drawing device has a nozzle assembly with an exit nozzle and a motor connected to a gear train that engages the strand such that rotation of the motor causes the feed stock to be extruded out of the exit nozzle to form a three-dimensional object. The motor can be controlled using a variable speed control mechanism or first and second actuators, thereby controlling movement of the strand, for example, to advance or retract the strand relative to the nozzle assembly.

A handheld gun-type cannabis rosin oil press and dispenser is described and claimed having a piston feeding mechanism comprising a trigger arranged to drive clamping means to grasp a piston and move the piston towards a melt chamber of the gun to feed the piston face against the cannabis floral material in the melt chamber. The force of the piston combined with the precisely controlled heat of the chamber causes the extraction of rosin oil from the cannabis material and subsequent dispensing from the outlet orifice of the gun.

A glue gun dispensing nozzle indicator changes color when a heater element exceeds a transition temperature. In one embodiment, the temperature indicator changes from a blue color to a red color to indicate that the temperature is sufficient so that the glue gun may dispense molten glue. Temperature dependent color pigments are applied as coatings to the indicator.

A hot melt glue gun provides a melt chamber for supplying melted glue to a discharge nozzle. An auxiliary chamber is connected to the melt chamber, and melted glue is drawn from the melt chamber into the auxiliary chamber when discharge of glue is terminated. The glue drawn from the melt chamber reduces the possibility of glue dripping from the discharge nozzle.

A hot melt glue gun provides a melt chamber for supplying melted glue to a discharge nozzle. An auxiliary chamber is connected to the melt chamber, and melted glue is drawn from the melt chamber into the auxiliary chamber when discharge of glue is terminated. The glue drawn from the melt chamber reduces the possibility of glue dripping from the discharge nozzle.

A glue gun and a method of advancing glue sticks in a glue gun. A leading glue stick is held in a channel of a feeder assembly in an active position, and a next-in-line glue stick is positioned adjacent the active position. In response to movement of a trigger of the glue gun by a user, the feeder assembly feeding the leading glue stick in an advancing direction. Upon advancement of the leading glue stick beyond a forward end of the next-in-line glue stick, the next-in-line glue stick drops freely into the active position, and a transition from feeding the leading glue stick with the feeder assembly to feeding the next-in-line glue stick with the feeder assembly occurs exclusively by repeated trigger actuation. No other steps or actions are required to put the next-in-line glue stick into the active position upon depletion of the leading glue stick.

An ergonomic glue pen employs a spring-loaded advancing assembly for advancing a glue stick toward a heater. When the proper temperature is reached, a trigger is depressed to dispense glue through a forward nozzle. In some embodiments, the nozzle changes color when the proper temperature is obtained. A button at the side of the glue pen is manually displaceable by the user. The glue stick is loaded at the rear of the glue pen via a one-way collet. The trigger preferably interacts with the advancing assembly via a spring-loaded ratchet mechanism.

A glue gun including a housing, an actuator, a carrier, and a stroke adjustment mechanism. The housing extends along an axis and includes a first end and a second end opposite the first end. The first end includes an outlet configured to dispense glue from the housing. The actuator is coupled to the housing. The carrier is supported by the housing and is configured to support a glue stick. The carrier is coupled to the actuator and movable a distance along the axis in response to actuation of the actuator to guide the glue stick toward the first end. The stroke adjustment mechanism is coupled to the carrier to adjust the distance that the carrier is movable along the axis.

A glue gun is adapted to receive a glue stick and to feed the glue stick forwardly a heater subassembly. A trigger is sequentially operated to advance the glue stick. The heater assembly transforms the glue stick into molten glue which is dispensed through a frontal nozzle of the glue gun. The glue gun has a temperature indicator. The glue gun is exteriorly ergonomically configured for facile usage.