Small-Batch precision machining from a home shop

Local manufacturers, product inventors, repair shops, hobby builders and small engineering firms that need one-off or low-volume parts.

Quote per part or per job based on machine time, material and setup, with repeat orders from regular customers.

• Reading engineering drawings
• Machining with a mill and lathe
• Using calipers and micrometers to hold tolerances
• Quoting jobs accurately

• Check zoning, any home occupation permit, and HOA or lease rules before running machines at home, as noise and coolant are common issues
• Check your state and city for a business license and sales tax registration
• General liability and product liability insurance, since a bad part can cause damage
• Check whether customers need ITAR or other export rules for defense or aerospace parts; many small shops avoid these at first
• Machine safety, metal chips and coolant disposal rules in your area

Startup costs are estimated at typically around $8,000 to $40,000, depending on whether you buy manual or entry-level CNC machines, new or used, plus tooling and measuring gear.

Monthly revenue is estimated at typically around $800 to $4,000, depending on the jobs you win, your machines, your quoting and the hours you put in. It can start as a side hustle at about 10 hours a week.

Check zoning, any home occupation permit, and HOA or lease rules, as noise and coolant are common issues. Also check your state and city for a business license and sales tax registration, and whether customers need ITAR or other export rules for defense or aerospace parts.