Re: Annealer Machine
Here is the discussion from another thread...
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: afrancke</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Carter Mayfield</div><div class="ubbcode-body">I do like the fact that the Giraud appears to stay set up.</div></div>
That is appearance only, I'm afraid - unless somebody has figured out how to regulate the gas much better than the standard valve allows for. The difference between not enough, too much and just enough gas (to get the temperature you want in combination with the ramp speed one chooses and burner position one selects through mechanical adjustment) is the slightest hair of a turn of the knob.
It takes me probably 20 - 30 minutes to set it up and recalibrate the temperature/speed to get the right dwell time using Tempilaq on some sacrificial cases I keep around for that purpose each time I use it, which means I am very glad for its large capacity; this thing gets set up to run hundreds of cases at a time to amortize all that setup time, and then cranks away in automated fashion while I do other things.
Naturally, if you change brass make or caliber, recalibration of the whole setup is needed as well (though you are of course a lot closer when just changing headstamps within the same caliber than when you go from, say, .223 Remington to .308 Winchester). Some physical part swapping is also needed between certain case types (again, between .223 and .308, but not between .308 and .30-06).</div></div>
AND
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: milo-2</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: afrancke</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Carter Mayfield</div><div class="ubbcode-body">I do like the fact that the Giraud appears to stay set up.</div></div>
That is appearance only, I'm afraid - unless somebody has figured out how to regulate the gas much better than the standard valve allows for. The difference between not enough, too much and just enough gas (to get the temperature you want in combination with the ramp speed one chooses and burner position one selects through mechanical adjustment) is the slightest hair of a turn of the knob.
It takes me probably 20 - 30 minutes to set it up and recalibrate the temperature/speed to get the right dwell time using Tempilaq on some sacrificial cases I keep around for that purpose each time I use it, which means I am very glad for its large capacity; this thing gets set up to run hundreds of cases at a time to amortize all that setup time, and then cranks away in automated fashion while I do other things.
Naturally, if you change brass make or caliber, recalibration of the whole setup is needed as well (though you are of course a lot closer when just changing headstamps within the same caliber than when you go from, say, .223 Remington to .308 Winchester). Some physical part swapping is also needed between certain case types (again, between .223 and .308, but not between .308 and .30-06).</div></div>
This guy is spot on, the Giraud is no picnic. I tried to double needle valve mine, guy at propane place said no, so I regulated it, 40lb, needs 55 I think??
It is an adventure every time I fire mine up.</div></div>