Replacing Magneto Switch or Re-magnetize Them?

[amurphy]

as i usually format my posts, i'll cut to the chase, and then give you the back story

is there a way to strengthen or remagnetize my magnetic switch or should i buy a replacement switch? or should i give up and chuck the mod?

i've had my magneto for about 2 months, and after weeks of troubleshooting and testing, i've concluded that the magnets on the switch have weakened. it doesn't hit nearly as hard as it once did, and since it was a weak connection, i was going through at least 4 vtc4 batteries a day. a friend who works at a b&m offered me his old k101 for 20, so i got it, and it hits so much harder than my magneto ever did. i've been using the k101 for about 2 weeks, and it's performing perfectly. however, i like the feel of the magneto better, and would really like to start using it again. a replacement switch is 25 bucks, so a little less than half of the mod's overall value. will replacing the switch solve all my problems? or will it not change anything, seeing as how there are two magnets, and a new switch only replaces one of those magnets?

 

[iamthevoice]

Magnetic field strength can be affected by high temperatures; what type of resistance are you running on that Magneto?

 

[Bunnykiller]

the magnets have nothing to do with the capabilities of the circuit carrying current, the magnets are there to keep the button ( contact) apart when not being pressed. The issue will most likely be that the contact surfaces of the switch are becoming oxidized and resulting in a loss of conductivity. Try cleaning the contact surfaces with a pencil eraser. there are 5 main points of contact in a mech, the + pin touching the atty pin, the + pin touching the battery + cap, the switch contact touching the negative base of the battery, the threads in the body of the tube, and the sleeve in which the switch button slides in.

 

[Bunnykiller]

Magnetic field strength can be affected by high temperatures; what type of resistance are you running on that Magneto?

you are right but the temps required to affect Neodinium magnets to a point to reduce the Tesla ( Gauss) value is way beyond what one could "handle" literally
temps need to be in the 400-700F range to mess with the magnets

 

[Newportlocal]

I am not sure it is a NdFeB magnet. I even own a magneto mod I have it out on loan right now to someone who desperately needed it on ECF. Not sure what the magnet material is. One report said as low as 280 F can have an effect.
Here
Frequently Asked Questions on Magnets & Magnetics - Integrated Magnetics
Other places cited a higher temp., but highly doubt that is the issue.

Anyway here is a cheap replacement part.
Smoktech Rebuildable Telescopic replacement switch assembly.

 

[amurphy]

Magnetic field strength can be affected by high temperatures; what type of resistance are you running on that Magneto?

i typically vape between 0.2 and 0.5 ohms.

 

[amurphy]

the magnets have nothing to do with the capabilities of the circuit carrying current, the magnets are there to keep the button ( contact) apart when not being pressed. The issue will most likely be that the contact surfaces of the switch are becoming oxidized and resulting in a loss of conductivity. Try cleaning the contact surfaces with a pencil eraser. there are 5 main points of contact in a mech, the + pin touching the atty pin, the + pin touching the battery + cap, the switch contact touching the negative base of the battery, the threads in the body of the tube, and the sleeve in which the switch button slides in.

thank you for clarifying that. i guess i got some bad info from my local b&m. they told me it was the magnets. so i took apart the switch, and i see some build up on the contacts around the magnets. using an eraser to clean them off. will post results soon. thanks again!