TOOLCO VM32B MILL Z AXIS DRIVE

PCEQUK

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Jun 30, 2021
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I have had the mill for some time but I have only recently started using it for some projects.

One of the frustrations - possible myself being slighty short in height was the Z Axis adjustment. Using inspiration from this site and having acquired a single phase induction motor with mounting bracket, speed controller, gear and chain from a Nutek PCB Conveyor I decided to adapt it as a Z drive for my mill.

The only purchased items was a plastic enclosure (to mount the controller, additional on-off switch and the direction selector switch) and a second 06B gear to suit the chain. All other electrical items I have acquired over the years from my work.

The 06B gear was bored out to the correct shaft size, a 4mm keyway slot added and three M4 tapped holes around the body for grub screws.

I wanted to retain the original handle for manual adjustment and made the handle adapter to fit / centralise on the gear. The start of the thread was initally damaged by a poor die.

Two limit switches and actuator block were fitted to the machine to stop the drive at each end of the machine stroke.

Parts Used:
  • Panasonic M81X25GSDW2 Motor with in built tacho generator / MX8G12.5B Gearbox
  • Panasonic DVUS825W1 Speed controller ith in built motor capacitor.
  • Mounting Bracket
  • 06B Chain (as acquired)
  • Manufactured handle adapter
  • DPST Rocker Switch (Main power On/Off)
  • Schneider Selector switch (for direction) made up of (ZB4-BD2/ZB4BZ009/2*ZBE101/2*ZBE102)
  • Limit Switches 2 * Omron XCK-P118H29
  • Enclosure Gewiss GW44216
  • 06B Gear
Observations:
The system work great as long as you dont start off in a very low speed.
The motor must be stopped before changing the direction.
 

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  • Control Box.JPG
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  • 06B GEAR.jpg
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  • HANDLE ADAPTER.jpg
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  • Limits.jpg
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  • Bracket.jpg
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Looks good! If you needed more torque you could always put a smaller sprocket on the motor
and shorten the chain slightly
-Mark
 
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