## How Have You Guys Made Your Inner Grids?

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Duncan Wilkie
Posts: 31
Joined: Fri Dec 25, 2015 1:55 am
Real name: Duncan Wilkie

### How Have You Guys Made Your Inner Grids?

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
Posts: 404
Joined: Wed May 08, 2013 7:36 pm
Real name: Tom McCarthy
Location: Ireland
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### Re: How Have You Guys Made Your Inner Grids?

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

viewtopic.php?f=6&t=2706&p=16310

ian_krase
Posts: 471
Joined: Mon Nov 28, 2016 7:48 am
Real name: Ian Krase

### Re: How Have You Guys Made Your Inner Grids?

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

prestonbarrows
Posts: 211
Joined: Sun Jun 24, 2012 5:27 am
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### Re: How Have You Guys Made Your Inner Grids?

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.