What Did You Buy Today?

Is that a sign that you'll be using that in the future?
is that a sine bar for the mill?

Yes... sine bar. Got it off eBay. Impulse buy after reading that thread on sine bars... You guys fault...

A Taft Peirce 5" Sine Bar

Now, if it is a sign that I will using a sine bar in the future? Not sure about that... :D sure hope so... whenever the need arises.
 
My bandsaw came with a 1/3HP motor, obviously stuck in there by some misguided owner. I upgraded it to 2HP, so now I have this 3 phase motor surplus. I saw a $50 VFD on eBay, thought I would see if it was any good. It came today, and even though all instructions are in Chinese, there were a couple clear pictures of the wiring...only AC line and motor, so pretty clear in any language. In 10 minutes mainly spent fumbling with wire, strippers and screwdrivers it was hooked up and working just as it should.

I see that the VFD runs on 110 or 220 single phase, but the 3 phase voltage is limited to the line voltage. So, 110 in, max 110 out. I tried it on both input voltages, the legs were pretty balanced in currents, and on 220 (what the motor was wired for) it ran at the nameplate current rating.

Now what to do with this motor? I'm thinking of using it on the die filer where the variable speed really makes sense. The next project, perhaps.

Edit: the seller quickly sent English instructions, and it is quite configurable for the major parameters, start/stop, frequency limits, remote speed, direction and stop/go controls, display of RPM, temperature, bus voltages and current frequency, etc. The defaults are well chosen, it works ok out of the box.

The main limitation is a 750W max output. Fine for a 1/3HP motor.


VFD.jpg
 
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