Sigma Labs Inc (SASI)

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Does anyone know how high the barrier to entry is for SGLB technology in terms of their ability to measure temperature for proper heating as opposed to ARCAM, Optomec, and some other competitors? It sounds like this is the only attribute which sets SGLB apart, is that correct? if true, how difficult would this be to replicate? I understand the team at SGLB are Los Alamos scientists who spent many years perfecting this, so I assume the barriers would be quite high. Thoughts?

Also as a side note, I corresponded a bit with Gary yesterday from 3dPrintingstocks. he agreed completely the company needs to hire young, vibrant and savvy PR/Sales and marketing guy as well as redo their pretty terrible website (see Arcam's for an example of an up to date modern, and user friendly one).

I am very long SGLB but have to say, am beginning to be discouraged that the company is not hiring the right Financial or Marketing team. Notwithstanding the obvious that the company is trying to keep costs down via payroll, I think a bit of infusion to certain key personel would go along way. I have no idea about Tom O'Mara other than what I read and I saw his picture (he looks like he's in his 80's).