3D Printer Hotend fix.

I experienced quite a catastrophic printer failure today, when the temperature of the Hotend (the component which the plastic filament passes to become molten before extrusion) raised rapidly to 250°+ causing the carbonisation of the PLA material. After quickly shutting the printer down, and increasing ventilation to clear the burnt plastic smell I investigated the cause of the failure. The thermostat had disconnected from the main heatsink of the Hotend, which meant that it was heavily under-reading.

After some research, and much thought, I worked out a process to reaffix the thermostat to the hotness. Simply glueing the thermostat back onto the Hotend, could potentially effect the sensitivity of device, and was the original fixing method. (Which evidently failed) Therefore, I decided to use wire to tie the thermostat to the Hotend positioning it onto the heatsink, providing maximum temperature accuracy. Only a small job, but without accurate temperature control, successful prating is almost impossible. I considered the effects of heat conduction though the wire tie, but decided that this would be insignificant and would not cause any harm to the cables as they all have heat resistant outer covering.

I attach two images of the Hotend in my printer, with the wire fixing holding the thermostat in place.

Disassembly of the PrintHead, notice the thermostat
and circuitry (on LH Hotend) disconnected from the Hotend.

The insulated cabling tied to the Hotend, holding the
thermostat onto the Heatsink for optimal reading accuracy