The plastic bag ties are much larger than required so I trim them down to size after fitting.
Strain relief for the thermocouple cable is a bit of a Heath Robinson job. I just tied a bag tie around the inside to prevent the cable being pulled out of the terminal block. This works, but does not protect against rotation of the cable. A better way would be to bung up the case hole with a clear silicone sealant and I may yet do that.
The corner feet are 3M silicone ‘bumpons’. These self adhesive feet are just high enough to clear the nuts that protrude from the base of the case.
The wires connecting the rotary encoder to the terminal blocks are solid core which I find easier to route because you can just press it into position and it’ll stay there. The ends at the encoder are fitted with a heat-shrink insulation sleeve to protect from accidental shorting and also to make it look neat and tidy.
The earth pins on the two mains connectors are soldered together. This is very important. Without it the oven would not be earthed, making it a potential death trap. My case is not fully earth-compliant, for example the metal screws and the encoder knob are floating so it’s not going to pass any compliance tests but I consider it to be safe enough for my own use.
The Xilence fan is mounted on the inside and oriented to draw air in and blow it on the heatsink. In operation it makes a very quiet whirring sound, just enough to let you know it’s there. I’ve never noticed the heatsink getting hot during operation (please don’t touch it while it’s on!) but when it’s in a case with restricted airflow it makes sense to have a fan just to keep the hot air from building up around the heatsink.
