One of the many pluses of a CNC machine is the ability to use ball mill and end mill bits to create custom profiles from CAD artwork.
The process is simple. The profile is drawn in a CAD program and that profile is then swept along a rail curve to produce a 3D model in the computer of the needed parts. For an experienced CAD artist, this process can take as little as 5 minutes to match the customer's profile request.
The 3D models are then toolpathed and simulated to ensure that the finished product will match the profile with the minimum amount of finishing required. In other words, it needs to look like it came off of a shaper that had custom knives made for it.
When the appropriate toolpaths have been post processed, the machine is ready to make chips.
In the case of this headboard, I used a half inch ball mill and a 10MM end mill to match the customer's requested profile.
CAD/CAM operations took 30 minutes. Machine time for the curved headboard top and the mirrored uprights took just under 2 hours. This includes setup and breakdown time of the CNC machine, stock positioning and repair of the one piece of walnut that tore away from one of the uprights.
If you were to use a shaper and are fortunate enough to be able to make your own knives you can probably make this in the same amount of time. If you have to order knives...
A CNC machine can be your best ally in a shop when it comes to turn around time. Even the simplest bits can be used to create dramatic profiles. When you couple that with the fact that you can use just about any of your existing router bits as well... (yes even the ones with guide bearings on them) you can see why a CNC Machine should be the next employee that you hire.
Next posting by me...
CAMaster makes a grand entrance.
Thinking outside the box is one thing, being able to accomplish what you think of, is another.
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Originally Posted by Michael Schwartz
