Manufacturers could make mechanical mods "safer".
The biggest danger of using a mechanical mod is one exploding like a pipe bomb. An incident like this is caused by a chain of design errors, user actions, and possibly a battery fault.
- Sealed metal tubes will probably explode if a battery vents violently
- Small vents at the bottom of the tube are useless, only very large gas vents near the top have a good chance of preventing an explosion (batteries vent from their top)
- Building coils lower than 0.2 ohm will raise the amp draw exponentially and this increases risk - the power graph shows a significant change at 0.2 ohms and starts to climb vertically as resistance is reduced further
- Using cheap batteries with ultra low res coils is a certain route to high risk - it needs 30 amp batteries of guaranteed high quality
Using improved design techniques could add layers of safety.
- recessed fire buttons to help prevent accidental firing of the battery in a pocket or purse
- doing away with bottom-firing mechanisms, and returning to side-firing mechanisms; the only reason manufacturers use bottom-fire buttons is because they are easier/cheaper to make
- using side-fire buttons designed to allow venting of gas through the button, like the AltSmoke Silver Bullet uses
- using a Kick module, which has protection circuitry
- using a "hot spring", which will collapse/melt should the battery get hot enough to go into thermal runaway, thereby breaking the electrical circuit.
- using a Vape Safe fuse protection circuit
