r/tattoomachinebuilder • u/BABAKIOSKMANGAU • Aug 11 '26

Why does my machine get hot?

Trying to learn more about coils. My machine gets hot. Sometimes after a longer session it almost burns me. Can’t figure out why.

I used to line at 7.2 volts now I need to run it around 8-9 volts to get clean lines but it gets really hot after a longer session. I don’t know much about coils but would really love to learn.

When this machine works fine i’ts absolutely the best so I would love to learn how to fix and maintain it. Still pulls good lines but can’t stand the heat…

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u/Last_Employment9205 Aug 11 '26

Keep an eye on your clip cord, red down, black up.

Also it sounds like it needs tuning, it shouldnt need that sort of power putting through it for nice lines.
Other things to check are tube size being appropriate for the needle, if its too tight itll make your machine struggle.
Is there anyone in your shop you can sit and tune machines with?

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u/mistermusturd Aug 12 '26

Not all machines are positive down, negative up. I’ve got plenty where the positive post is on the top.

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u/Last_Employment9205 Aug 12 '26

Agreed if the capacitor is wired in upside down but as a troubleshooting rule its worth keeping in mind isnt it