How Have You Guys Made Your Inner Grids?

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Duncan Wilkie
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Real name: Duncan Wilkie

How Have You Guys Made Your Inner Grids?

Post by Duncan Wilkie » Sun May 13, 2018 10:31 pm

Perhaps the best way to figure out my own construction issues is to ask how the pros do it. I haven't had much luck finding information on the weldability/brazeability of pure tungsten to itself and stainless on the internet, so I thought I'd ask how you guys constructed grids.
Some say the glass is half full. Others see it as half empty. I say it is twice as big as it needs to be.

Tom McCarthy
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Real name: Tom McCarthy
Location: Ireland

Re: How Have You Guys Made Your Inner Grids?

Post by Tom McCarthy » Sun May 13, 2018 11:18 pm

Comprehensive post on inner grid construction without any welding/brazing etc.


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Real name: Ian Krase

Re: How Have You Guys Made Your Inner Grids?

Post by ian_krase » Mon May 14, 2018 6:42 am

For those not making seamless grids, tungsten can be bonded to itself and to stainless steel by spot welding.

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Re: How Have You Guys Made Your Inner Grids?

Post by prestonbarrows » Sat May 19, 2018 5:44 am

Tungsten filament (from mcmaster or other places) is simple enough to hand fabricate for mid-performance grids.
2π in θ at r=1, rotate π/2 in φ, 9/4π in θ at r=1,rotate π/2 in φ, 2π in φ at r=1.

Easy for r> ~0.5 inches. You should end up with two flying leads you can spin together on the main stalk to your feedthrough.

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