My shop neighbor Arnie is a talented welder and he got his hands on a MIG welder today.
Arnie, welder extraordinaire
He offered to help us weld up the sled. Sweet. Some pics of the welding:
The finished sled:
My first weld:
It was hard to see the line I was welding.
I’m starting to fabricate the persistent switch for the superconducting cable. Cryogenic Control Systems sells these heater cartridges for the purpose. Another option is to fabricate our own heater with the nichrome wire used for the reprap’s heater barrel. With a persistent switch we can test out the superconducting cable with a current.
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