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Discussion Starter · #1 ·
I bought the kit for about AUD200 in 2013 because I wanted to control the speed of my Scroll Saw, drill presses and the wood lathe motors that have single speed induction motors.

Finally, I finished constructing and tested.

Works well on Scroll saw and 2 drill presses.
Could not work on my Wood lathe.

3 out of 4 machines is NOT BAD.

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Jaycar no longer sell this kit. Altronics still has it but now sells for AUD345.
 

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Discussion Starter · #2 ·
The advantage of this kit is that you can ALSO run & speed control a 415V 3-phase motor from 240V Single phase power supply by just rewiring the motor from STAR to DELTA configuration. Clock-wise and Counter clock-wise rotation is also supported.

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GREAT information, and nice job on the controller.

I lucked out at a garage sale. Crowds of people had already been through and ignored several of the tubs filled with aluminum scraps and odds and ends. One had what looked like a motor I'd been eyeballing on line for several years - an industrial sewing machine motor. I bought that bin for twenty, along with a few more equally impressive finds.

The motor had a 3/4 horse DC motor and controller. I'd bought a four wheel grinder of craigslist for a couple hundred and it was running on 240. I pulled the motor and swapped it for the garage sale find. I, now, have one of the nicest grinders you could buy. I can run the wheels at from 5 RPM's to 2,400 RPM, so overheating things is less likely and controlling the grind is far easier now. Especially since I swapped out two of the wheels for CBN's.

I like the performance of the grinder so much, I ran an add for free treadmills. Two responses gave me a 1hp and a 3/4 horse DC motor. Because rectifiers and things are so cheap, I built a controller to swap out my the dental lathe (strange name for a buffer) on my Handler buffer from 1/3hp, two speed Redwing to a variable speed treadmill motor.

Both motors tested good on my DC controller and it looks like my buff station and drill press will be going variable speed in the future (have to pick up a couple tacs for RPM monitoring).

Sure beats spending the extra $1,000.00 for the variable speed capability.
 

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Discussion Starter · #4 · (Edited)
With the "1.5kW Induction Motor Speed Controller" I could ONE DAY replace the more than 60 years old motor of my ELU DC180 lathe with a 1 HP 3-phase motor that today cost below AUD200 brand new and gain variable and slower RPMs instead of just shifting the belt on the 3 existing pulley ratios. Motor had sometimes started in reverse before but I only needed to replace the start-run capacitor. This controller does not support 1-phase motors with start-run capacitor or has a centrifugal switch.


ONE speed controller for many machines is the most economical way.

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