Your High Sierra has made a lot of meat. I need to pull mine off the rack and give it some love - the ASL rabbit hole I've went down has had me ignoring my recurves.  Nice buck!

In order to get a higher voltage to work for the heat strip a higher resistivity material needs to be used.  The most prevalent materials in SS all have about 9 x 10^-8 ohms per m²/m.  If we wanted to use 12 volts to run the heat strips the material would have to be about 6x higher in resistivity.

I calculate about 0.2 ohms resistance for the SS from Kirk's data.  If you run 12 volts through this strip it would dissipate 7200 watts and require 600 amps.

To get 120 watts at 12 volts requires 1.2 ohms.  One could place 0.5 ohms resistors at each end that bolt to the strip and their temperature would be put into the strip, albeit at the ends, so it is not likely to heat evenly down the strip.

Nichrome has more than 10x the resistivity of the SS so that is why it works so well.

Now that I have spent a bit more time on this problem and did a bit of math and see that we need a higher resistance material I conclude that with SS strips you need very high current and low voltage.  To use a higher voltage and lower current requires a higher resistance. V = I x R

Bump. Vented Interceptor

I got some finished photos this morning and added them to the build album... Here ya go....It will ship out tomorrow.

https://photos.app.goo.gl/zw8FeCF4juoVv9dG8

  Very Nice ! My hunting bow is also a Fox High Siera TD 52#@ 28" great shooting bows!

Tradgang is one of the best traditional archery communities out there.  Well done Men

Beautiful work.

Like some others I really try not to get involved with this type of tuning discussion....especially since your really happy with what you worked out. Perhaps I'm just too dull witted to learn to pass on a post:)

But....If you bareshaft tune (single arrow method works best for me) then your point weight will be the one that that allows your fletchless shaft to fly perfectly to the target. You might work off of that to allow a 20 grain variance up or down...but all your likely doing is taking your perfect tune away; though it likely still flies good with fletched arrows. For most folks; that is all that they are looking for. That said, I understand that a good FOC percentage is desirable to you.

I'm curious to see how your wide Sharks work with light arrows and low pow poundage. I would probably go with something more like a two blade Magnus 125 grain Stinger.... if 125 grains is what your initial tuning showed worked the best.

Regardless, I wish you great success in the future.

Wait, don't do as I suggested in the previous post - that will not work.  I think I have the correct answer in my head but need to noodle on it for a bit.

Repeating the measurements of your existing setup just to make sure we have the right data with a few photos will help.

Kirk, it just occurred to me that we can test my theory with your setup.

Set the current on your charger to 10 amps and adjust the AC so that the voltage at the strips is 12 volts and then see if the strips get to the temperature profile you like.  If this works it will demonstrate the a power supply will work.

Kevin