While both CNC machining and 3D printing start with the same types of technologies and, at a glance, may seem to produce similar results, there are definite pros and cons to each when it comes to custom parts. Before you go all-in for the new guy in town, make sure to research all of your options. CNC milling has been a parts production go-to since the early ’50s, and for good reason.
CNC Vs. 3D — What’s The Difference?
With CNC or computer numerical control, computer-guided tools remove portions of material until your desired product takes shape. 3D printers, on the other hand, build up the final shape layer by layer, either through heated extruder nozzles or photo-sensitive resins. Both processes start with a 3D file and finish with a 3D product.
Is Computer Milling More Wasteful?
Because some material is removed during computer milling, you may hear that this makes it a more wasteful type of production. In both extruder and resin printing, extra supports often have to be added to help items keep their shape as materials heat and cool. These supports are then pulled off and discarded. Resins must also be cleaned and the bath of chemicals remaining discarded.
The Many Pros Of CNC Machining
The bulk of the cost involved with CNC machining will go into the initial setup. Once you’re all set up, the price per unit of your custom item will usually decrease the more you manufacture. You can count on computer milling technology to shape everything from metal alloys to wax to acrylic to plastics, quickly and accurately. Your finished pieces will look finished and be ready to ship to you without further processing.
- Virtually Limitless Material Choices
- The More You Produce, The More You Save
- Little To No Finishing Work For Excellent Turnaround Times
- Fast Production Speeds
- Suitable For Producing Large Or Heavy Parts
- Better For High Precision Components & Tools
- Material Integrity Stays Intact For Stronger, More Durable Parts
Are You Really Saving With 3D Printed Parts?
The upfront cost is commonly the most attractive part of 3D printing, especially when it comes to prototyping. If you are planning on one-off, one-of-a-kind, or personalized custom items, like specialized medical accessories, for instance, 3D printing might just be for you. Unlike, CNC metal spinning or materials milling, the cost of your prints will not decrease the more you produce.
Even when it comes to the dental industry which is cited again and again as a great candidate for 3D printing, CEREC — a well-known office technology, is actually a computerized milling machine.
Get A Quote For CNC Metal Spinning
Still, confused about the 3D printing vs. CNC milling debate? At Stuecklen Manufacturing Company, we are here to answer your questions about custom metal parts and the processes behind them. Send us your designs today for a quote on CNC machining. Or contact us with questions about materials capabilities and the best metal spinning technology for your project.
