Even if you're not a veteran, Solidworks for makers is $48/year, or $38/year through "Titans of CNC." You get a grace zone of up to $2000 in profit before they expect you to get a non-hobbyist license, which unfortunately is quite pricy.

For comparison, Fusion only gives you $1000 of revenue, but the cheapest commercial license for them is much cheaper; basically, they just want you to buy the license once you pull in enough sales to cut them their check. OnShape has no similar scheme, forces free users' designs to be open, AND has a clumsily worded EULA that raises a distinct possibility that other users can take your stuff and sell it, but you can't. Solid Edge is a simple "non-commercial use" for the free tier. Alibre doesn't do free at all, but offers a very cheap version that's limited by features instead of license rights.