If you are playing an alt, and can’t decide which crew skill combination to take, may I suggest that you take the “Profiteering” crew skills:

• Slicing
• Underworld Trading
• Treasure Hunting

While you won’t be able to make anything with this combination of crew skills, you should be able to sell the items that these crew skills generate for a significant amount of credits.

Slicing of course yields augments which sell for a moderate sum of credits, but they also give mission rewards that can sell for anywhere between 10,000 and 50,000 credits (your server may vary).

Underworld Trading resources are in high demand since this resource is required by three different crafting professions.  Even on my relatively low populated server, Mandalorian Iron is still selling for 10,000 credits a piece.  You will also get the occasional orange schematic.  The common ones don’t sell very well, but there are a few schematics that are rare that will sell for a pretty credit.

Treasure Hunting also yields resources that are high in demand.  Players love their colored crystals, and as a result, artificers are always in need of resources for these crystals.  These missions also have a chance to yield orange gear, which may sell for a few thousand credits.

If you are at the point where you would like to focus on making credits as opposed to crafting gear to help out your character or guild, you should focus on these three crew skills, and watch the profits build up.