[DonRotolo]

A vacuum is not going to remove much of the metal shavings that I suspect are in the Jaguar. And, as a rookie team, I can understand how you might not understand how very important it is to keep even the tiniest bits of metal out of the Jaguars. Failing to do so will be a costly lesson in a very short time.

Take the failed jaguar(s) and open them. They're trash anyway. If you find the tiniest speck of metal in there, that is the reason they failed.

I cannot emphasize this enough: ALL metal shavings/filings/dust/particles MUST be kept out of ALL the electronics, or failures will happen with increasing frequency.

Compressed air is the only way to remove this, and even then it's only partly effective. You must find a fool-proof way of keeping all electrical parts completely free of metal dust.