Based on this teardown of a cheap hobby glue gun the operating temperature is expected to be around 150 °C, which isn’t enough to really melt PLA properly. Another thing that became clear ...
Hot Melt / Dispense Devices melt the media from a solid form, and dispense it as a liquid. A hot-glue gun is an example of this type of dispenser. Other Other unlisted, specialized, or proprietary ...