15.18 Electric nails

Easy to get spoiled by an electric nail!  I know I sure have starting with the one mockup Growgeek and I assembled, which led Son I to mount the controls in an surplus electrical kit box, and which unit I continue to use to this date.

I did have to replace the heating coil once, after the thermocouple failed, but it essentially stays hot all day, every day, during the waking hours that I'm home, and the coil lasted at least three years.  I ordered two replacements and am still on the first after a couple more years.

 

Oil Coil

I've used an Oil Coil thus far, but couldn't locate a ready link to buy more, checked the internet and notice that Aqua Lab Technologies offers replacement coils, as do others.  Here are three links to check out:

https://aqualabtechnologies.com/products/the-mininail-enail-heater-coil?variant=43858489863

https://www.thedablab.com/d-nail-replacement-heater-coil-10mm-16mm-20mm-flat/

http://rcctools.com/product/replacement-e-nail-heat-coil/

We used a 20 mm coil, which just slides over a KO V-1 Domeless nail, which was donated to us along with a V-2 for testing.  The V-1 is heavier walled and they are straight, where the V-2 has thinner walls that bell outward a few degrees.

 

 KO V-1 Domeless Nail

 

KO V-1 Domeless Nail in Skunk Pipe

We used a Mypin Model TA4-SSR PID controller and a 25 amp Fotek Solid State Relay:

 

Mypin TA4-SSR PID Controller

 

Mypin TA4-SSR wiring diagram

 

Fotek SSR

 

Electric nail schematic

 

 Growgeek and my first test sled

The test sled worked well and my intent was to follow through with a conventional design where the heating coil stays attached to the nail, such as this Bee Nail.

 

Commercially available assembly

 After Son I mounted the controls in and electrical box and we had a chance to use it some more as was, the more we came to appreciate being able to just lift the coil off the nail and pass the pipe across the room, without having the umbelical  wiring stringing along.

 

E-Nail heated and ready to use.

 

Mypin PID controller in electrical kit box.

 

Heating coil lifted off of nail to allow it to be passed:


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