Tattoo machine electromagnetics

[bbaxter]

my thoughts on coil making: thinner gauge wire i think will generate a stronger magnetic force over the thicker wire with equal voltage applied. also the thinner wire will heat up at a lower voltage. I am not sure if there's a formula that would relate the size wire to magnetic pull with a give voltage and the level of heat generated as a result. maybe someone with a degree in magnetics could correct me if I am wrong. I THINK: the smaller core diameter will require less voltage to be applied if all other variables were consistant. the thicker core will generate a larger field. but would require more voltage to achieve the same amount of "pulling force". the larger core will "grab" a larger portion of the arm.bar, but will require a higher voltage, generating more heat. it may just be a personal preference: small cores with heavy wire or large cores with thin wire. try them both and expirament.

 

[gentleone444]

Theres something interesting I've noticed about my tattoo machines that may relate to this thread. The armature bar on some of my machines looks funny when it is running...its hard to explain...kind of comparable to maybe how a guitar string looks when it is vibrating...kind of wavy...it makes me think that when the electrical and mechanical circuits are oscillating, or are in harmony, there will be some kind of visual cue like this. Is this possible? Is it to be expected?
Are there any simple equations to determine whether two circuits(electrical and mechanical) are oscillating? Any expected visual cues?
Thanks...very interesting thread
g

 

[gentleone444]

Also does it matter in a tank circuit which way the capacitor is facing? The ones I use have plusses and arrows...I have tried both directions but don't seem to be able to notice a difference.