|
To make a nichrome wire heating strap:
- Extend/stretch the wire on a bench.
- Connect one end of the power supply to one end of the wire and then connect the other voltage somewhere along the wire (no need to cut the wire, use something like crocodile clips).
- Switch on the power and see how hot it gets. If it is too hot shift the crocodile clip so that the wire is longer. If it is too cold make the wire shorter.
- Rinse and repeat until you are happy with the temperature (do not cut the wire just yet).
- Measure the diameter of your scope and calculate how many turns you have to go around.
- As Chris said put the nichrome wire inside heatshrink and then stick it to duct tape while making required number of turns. For example, for two turns go along the length of the duct tape, do a U-turn and go back to the beginning. You have to be a bit creative here.
- Stick another layer of duct tape over the top to fix the nichrome wire in place. Alternatively you can just fold the duct tape, depending on the number of turns.
- Attach connectors and velcro to hold it in place.
|