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29th December 2012, 04:28 PM #31Product designer retired
- Join Date
- Nov 2006
- Location
- Heidelberg, Victoria
- Age
- 80
- Posts
- 2,237
Try a diode
I'm not sure if this will work, but you could try putting a 4A diode in series with the active wire. This will at least halve the power to the motor.
I stand to be corrected on this.
Ken
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29th December 2012, 05:24 PM #32Member
- Join Date
- Mar 2006
- Location
- Mareeba, FNQ
- Age
- 80
- Posts
- 50
..and that's the point... am I willing to make a JayCar kit, which costs over $200 when I could buy it mostly pre-assembled, if it does the same job, if it works.
if..
if...
when I've got my head stuck up the something or other of a dilemma, it's time to ask a question.
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29th December 2012, 05:31 PM #33Member
- Join Date
- Mar 2006
- Location
- Mareeba, FNQ
- Age
- 80
- Posts
- 50
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31st December 2012, 07:06 PM #34New Member
- Join Date
- Dec 2012
- Location
- Perth
- Posts
- 4
The Silicon Chip "single phase VSD" does what it does by simply connecting the motor between two outputs of a conventional three phase 220V VSD.
I took a cheap ($98) Chinese inverter and connected a single phase motor between two outputs, and voila, we have single phase speed control. Slightly lower theoretical full power output, but on the whole a most satisfactory experience from hardware I already had laying around. The Chinese inverter is also far more programmable.
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23rd March 2013, 10:30 PM #35Senior Member
- Join Date
- Mar 2012
- Location
- sydney
- Posts
- 78
Has anybody built this kit from Jaycar, and what was the results from it?
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12th January 2023, 06:26 PM #36Senior Member
- Join Date
- Nov 2003
- Location
- Melbourne, Australia
- Posts
- 95
I have.
Works well with my
1. Ryobi SC-160 Scroll Saw
2. My pedestal drill Press.
3. My desktop drill press cum up-down moving + spinning Drums sander.
Did not work with my ANTIQUE ELU DB-180 wood lathe that has an induction motor with centrifugal switch.
Altronics still selling this kit today.Reuel
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15th January 2023, 02:45 PM #37
Ten years for a reply.....not a record but impressive.
Those were the droids I was looking for.
https://autoblastgates.com.au
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16th January 2023, 07:42 AM #38GOLD MEMBER
- Join Date
- Nov 2007
- Location
- melbourne australia
- Posts
- 2,585
Still useful info though.
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16th January 2023, 01:21 PM #39Senior Member
- Join Date
- Nov 2003
- Location
- Melbourne, Australia
- Posts
- 95
Silicon Chip Magazine induction motor speed controller kit is STILL cost effective
I already got 3 out of 4 machines working
Even for my antique ELU Wood lathe, I can always replace the 60yo motor with a 1HP 3-phase motor for below $200
3-phase motor.jpg
or
a 0.75 kW Motor (1 HP) 240 V Single Phase Permanent Split Capacitor for $265.
A0097753.jpg
ONE SPEED CONTROLLER for MULTIPLE EXISTING MACHINES IS IMO COST EFFECTIVEReuel
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