I purchased a ScanTek 2000 ScanMill (a rebranded Denford Micromill 2000) that consists of a Sherline 5400 CNC milling machine inside of a steel case. It is normally controlled via proprietary software (VM Milling 5) that controls a baldor NextMove ST motion control board. I removed the top card of the motion control board and wired up connections to it from a parallel port break-out board so that I could control the mill using LinuxCNC (or Mach 3). You can read about my process here:
- Initial bootup.
- Defeating the front panel key switch.
- Getting the X/Y/Z stepper motors working.
- Reading the home / limit and emergency stop switches.
- Turning on the Spindle Go Relay and hotwiring the spindle driver control board.
- Controlling the spindle motor driver board via PWM signal through the Baldor NextMove ST control board.
- Fixing the spindle motor bracket.
- Playing with g-code.
Oh yes, I also have a matching CNC Lathe…
A previous project I did involved constructing an X/Y table using Ikea surplus drawer rails, and you can read all about it here:
- I started off by using Ikea drawer rails and surplus MDF board for the mechanical parts and got the X axis working.
- Then I added the Y axis mechanism and was able to draw in two dimensions under computer control.
- Here is a post about the Electro-Mechanical parts of the router
- I added limit switches to the X and Y axis.
- My new Ocean Controls serial stepper controller arrived.
- My first performance test and platform leveling
- Cutting out my first part and building a bearing assembly.
- Making angle iron bearings and the Z-axis cart.
- More on the z-axis cart and pipe adjustment assemblies
|Mechanical (IKEA AS-IS room)||Base, X-platform, Y-Platform
X/Y linear rails (drawer pulls)
Raw Material (MDF board) for Z-cart & base
|Mechanical (ACE Hardware)||M4 screws, washers & nuts (servo mounting)
SM screws & washers
2×1 x 8foot piece of wood
1-foot plastic tubing
4 foot 3/4 inch steel angle iron
Eight 1/4inch bolts, nuts, and nylon locking nuts for Z-axis bearings
2x 12 inch by 1/2inch black “nipple” pipe (z-axis)
100pc box of 6-32 machine screws and nuts (pipe adjusters)
(may be re-used on 2nd Gen router)
|3 Surplus Linear Actuator (servos)
3 Stepper driver boards (kit)
Servo Serial Control Board
70.50 (AUD, or $44.52 USD)
65 (AUD, or $41 USD)
I expect to re-use the steppers and driver electronics in my 2nd gen milling machine. I also bought a “dremel drill press” to use as a temporary (human operated) Z axis on my first gen router for $15.