Spindle DC Motor Kit
From Zen_Toolworks_Wiki
The Zen Toolworks DC Spindle motor comes with a precision Jacobs chuck that can accept 0.3 - 4mm drill bits or end mills. The speed can be adjusted from 5000 rpm (24v) to 10000 rpm (48v). The optimum operation input voltage is between 26 - 32V. The brushes can be replaced, and one set of extra brush is included in the package. It also come with the holding frames that you can easily put onto your CNC machine, hardware packet is also included. It should be noted that running the motor near its upper limits will produce extra heat, common sense should be used here to avoid thermal problems or possible burns.
Contents |
Technical Overview
| Diameter | : 2" max. |
| Length | : 5" (w/o bit) |
| Nominal Voltage | : 24-48VDC |
| Operating Voltage | : 26-32VDC |
| Operating Speed (RPM) | : 5,000 - 10,000 |
| Chuck Type | : Jacobs 3-Jaw Chuck (0.3 - 4mm) |
| Compatible Bit Sizes | : 0.3 - 4mm drill, carving or end mill bits |
Voltage and RPM
An independent unloaded voltage vs speed test:
Voltage RPM 35 7860 34.2 7680 33.4 7500 32.6 7320 31.8 7200 31 6960 30.0 6780 29.2 6600 28.4 6360 27.6 6240 26.8 6030 26.0 5850 25.2 5670 24.4 5460 23.6 5310 22.8 5100 22.0 4920
Amperage
"The spindle draws about 1A from my own testing, somehow it is different from the factory specifications. I would suggest using a different power supply for the spindle motor, I feel it is safer that way and less likely to interfere with other driving components. " (Zen)
Bracket Assembly
To assemble and mount the Spindle kit:
- take the winged/rear bracket and place it on the surface of the z-axis plate
- screw them into place using the pre-drilled holes on the mounting plate using the shorter screws
- (optional) hold your spindle motor in place against the rear bracket
- line up the front bracket against the rear bracket
- using the available pre-drilled holes, screwing them into the rear bracket with the long screws
Note - You can slide the spindle motor into the space from the top or bottom if you wish to start the screws first
External links
Jacobs 3 Jaw 0.3-4mm JTO - Direct Industry Chuck & Bits Catalog (PDF)
