Mastodawn

Its not fully working yet, but this is the latest hair removal machine I put together. I've done about 5 hours with it so far. I haven't built a timer circuit yet and I don't think I'm going to add voltage control like I planned. The board in this was made in kicad.

#diyhairelectrolysis

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silver Nov 19

My belly is looking pretty good a week later. one more round and I think I'll be done with this spot.

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silver Nov 7

These pics are immediately after a 2 hour session and later after the swelling calmed down. I'm excited to see the pics of this area in a few weeks and compare to what it used to look like.

silver Nov 7

Made a case with a pen and 9v battery holder for my #diyhairelectrolysis machine and did another 2 hours or so on my belly. I think it's probably done now, but we'll see how it looks in a few weeks.

silver Oct 13

I still can't believe this is what I look like now. HRT is great.

silver Oct 10

Did an hour and a half of electro work on my belly tonight while lurking on a work call. I gave up on my arms because the hairs were too numerous and thin, but this seems to work really well for smaller areas with coarse hairs. I'm getting marks from this that last a few weeks, but I'm starting to get a better idea of how much pluck resistance is acceptable and have been able to reduce time spent per hair a little bit, which helps it not get irritated as much.

#diyhairelectrolysis

silver Sep 4, 2025

It's me

silver Aug 24, 2025

Progress pic of my arm hair removal. This is a spot I have gone over and mostly cleared twice so far. #diyhairelectrolysis

silver Aug 24, 2025

More #diyhairelectrolysis fun. I built the breadboarded controller on protoboard (badly) and have been using it a little bit with a 4s lithium pack I built a few years ago instead of a 9v battery. One knob is for cycle time and the other is for current control.

silver Aug 10, 2025

Now that I understand how the lm358 based current limiter works, I can circle back around to controlling a #diyhairelectrolysis machine with an #arduino. The intention is to power it from a 5v usb battery for the arduino and most of the circuit, and from 9v for only the hair removal current. This set up so if the microcontroller is unpowered the output is off. I'm going to move the circit to protoboard and 3d print a box for it and call this mk5. It will be nice to have all the control circuits in one unit, and having a programmable controller should enable some really fun things. I want to try monitoring to calculate and display the discharged energy on an oled screen. Or do some sensing and math so instead of a knob for time, voltage, and current, you just have a knob for how gnarly the hair you're about to attack is. Or how sending the arduino output through a resistor ladder could allow for different energy output profiles. This stuff is fun!