...not quite ready for prime time?
I tried to scam Greg Cook into finding the answers for me, but he's too busy gloating today
The idea was to use a variable frequency drive (VFD) with 110vac single phase input to run a 3 phase motor (huff puff) and provide things like variable speed and soft start.
The answer that Greg and I both found, is that you can buy the VFD's all over the place, but they're pricey - starting price on new units around $400.
Well, that's fine for those who don't mind tripling the price of their drill press or whatever to get speed control, but it's more than I want to blow on a luxury item.
I decided to investigate an alternate route - DC motors. The site that really set me on my way is a How-To by a guy who adapted an exercise treadmill motor to his Taig mini-lathe. Everything you need, including part No's is there, so I could stop here.
But while Greg was waxing his latest restoration, I soldiered on and got updated links for the major components. Read the above link for clues on how to put it together.
Speed Control 1
Speed Control 2
Depending on the speed controller you choose, you're looking at $75-85 (+ shipping)
You'll need to spec out a pulley.
The problem from my point of view is that you need to shop in at least 3 different places to benefit from these "savings". Then when you get all the bits, you'll need to have a bit of electrical savvy to put it all together.
Anyone know of a more convenient way of doing this ??
[apologies to Greg ]