- Central Machine Shop at MIT - sell metal on campus by weight for cash/requisition. Available same day
- Metal Source - (Metal Source now closed, only buy through Admiral Metals) - retail center at Admiral Metals (Aluminum) (20 min north of campus at 11 Forbes Rd. Woburn MA)- many types of sheet, bar, rod etc. Can be obtained same day.
- J Freeman - local distributor of plastic and metal sheet etc - good for laser cutting materials
- Turner Steel - Steel supplier 40 min south of Cambridge
- Yarde - local metal dealer
- Midwest Steel - online dealer - good prices - auto quote
- Discount Steel - online dealer - auto quote
- 3D Hubs - 10.000+ 3D printing local services. 25% student discount here
- Shapeways - buy cool items here such as metal jewelry etc, or send your design to be made
- 3D Printing Price Check - instant quotes from many different vendors for different materials.
- 3D Printsmith -
- Inventables - resources for 3D printers and other small CNC machines, and some cool materials (aluminum foam, heat shielding gel, etc)
- Thingiverse - STL models of 3D printable items - uploaded by users
- Youmagine - like thingiverse but with solidworks etc files too so they can be edited
- 3Ders -
- 3D Thermoplastics - unique 3D printing filaments
- Makergeeks - more cool filament and other unique items
- Buildtak - good surface for small FDM printers
External Machine Shops
- Big Blue Saw - waterjetting vendor
- Danger Awesome - laser cutter vendor in Cambridge
- Protomold - low volume, fast turnaround injection molding services
- First Cut - low volume CNC machined parts, fast turnaround; online, instant, auto quote process
- Artisan's Asylum - membership based community workspace for artists and hobbyists, in Somerville
- Coating Application - local powder coating & sandblasting company in Woburn- quick turnaround
- SunPe Prototyping - CNC Machine shop in China, 7 day turnaround, very cheap, good quality (cheaper than firstcut or other US shops I have found.)
- Airgas - Welding supplies. Welders and accessories at Vassar Street store by MIT Police.
- Onshape - CAD in the cloud, many new features as is new company from solidworks founder
- GrabCad - includes solid models for many items.