THE MAXNC15 .
The MAXNC15 is one of the Desktop CNC Mill produced by MAXNC http://www.maxnc.com .It is made in anodized aluminium, so it is not very heavy. But I had considered that it is stable enought to work not only plastic and wax but also aluminium and brass. There are some models of MAXNC15: the Open Loop version (without feedback) and the Closed Loop version (provided with encoder on each step motor to ensure the necessary feedback to control motors motion). I had choose to buy the Closed Loop version: no others factory offers a product of this type (at an acceptable price). Well, the first step was to setup and test it. I describe what I had made in the page MAXNC15_setup .
Data
Spindle Motor: Daytona 1/5 HP, 10000 RPM Max.
Pulley Ratio's for MaxNC-15 --------------------------- Belt
Drive Position Ratio -------- ------
Top 1.22:1
Middle 1.72:1
Bottom 2.83:1
For MaxNC machines, this is pretty much what the drive ratios work out to be --
| | | | | |
| Belt Position | Bottom | Middle | Top | |
| Ratio | 0.41 | 0.59 | 0.83 | |
| | | | | |
| S Value | Actual Spindle RPM | |||
| 10,000 | 4,100 | 5,900 | 8,300 | |
| 9,000 | 3,690 | 5,310 | 7,470 | |
| 8,000 | 3,280 | 4,720 | 6,640 | |
| 7,000 | 2,870 | 4,130 | 5,810 | |
| 6,000 | 2,460 | 3,540 | 4,980 | |
| 5,000 | 2,050 | 2,950 | 4,150 | |
| 4,000 | 1,640 | 2,360 | 3,320 | |
| 3,000 | 1,230 | 1,770 | 2,490 | |
| 2,000 | 820 | 1,180 | 1,660 | |
| 1,000 | 410 | 590 | 830 | |
| - | - | - | - | |
| | | | | |
Courtesy of Dale K. Howe, PhD
