Interesting how people's experiences vary. I run feeders exclusively; several mechs, a DNA30 and a DNA40. All of them use 18650s. The 40 is the only one on which I can consistently drain a whole 6ml bottle on a single charge.
Here is a trick that I use. clamp a piece of hardwood or lexan to your drill press table and drill a hole in it the size of your pin. Flip your bit upside down and use the blunt end to press your pin into the hole u just drilled. Then swap to the bit you want to drill your pin with. You will have a dead center straight hole every time.[emoji1] I drill most of my attys with 1/16. If m2 screw in bottom I slot the insulator instead.
Yes this is very good advise. Now I have a mini lathe, and one drill bit lasts and lasts, when I was trying to drill out pins by clamping the pin and spinning the drill bit I went through many drill bits and had bits break off in the pins from time to time writing off the pins. With the lathe where the pin is spinning it's a joy drilling pins. Whatever you do remember to keep the pin cool if it's ss otherwise you work harden it and you are screwed, your juice is the perfect lubricant and coolant as when it starts to vaporise you know you have to let it cool and you then keep the ss drillable.I've found that the best way to drill out atty posts is not fixing them under a drill press and attempting to achieve the perfect alignment (almost impossible). Reverse the process and it becomes much easier and more accurate.
Attach the atty post to the drill press chuck and turn it. On the drill press's table attach a chuck and fit the drill bit so it's stationary and lower the atty post to the drill bit. The fact that the post is turning will center the hole perfectly.
Of course you must start by having the two opposing chucks perfectly aligned and you can achieve that by getting a steel plate and attaching it with bolts to your drill press table. Then chuck up on the drill press a drill bit which is the same size as the second chuck's shank and drill the hole. Attach your second chuck to the plate using the hole you drilled (and a lock nut) and now you can achieve pretty much perfect alignment every time effortlessly.
It's called a homemade lathe (on the cheap and it works)
that said, I will eventually swap it out for another with a display but honestly I could see just calibrating one and sticking it into a mod blind instead of just a simple mosfet, it's kinda like a mosfet on steroids
what's pretty cool to me is now running the dna40 without a display, it's just permanently set to 450deg and ~25 watts. now with this one I don't even need to think when sticking a coil in there, I just twist up a piece of Ni and stick it in there and it vapes perfect, don't know the resistance, don't even care, it vapes great and it's protected from ever getting a dry hit. whatever piece of wire I stick between the posts just vapes right, no display means no tinkering or playing with it, just simply vape it blind and it's still a great vape every time
