Please help me get my new shop set up :)

[Vulcanite]

How do those things work. Do they reduce voltage or current into your motor? I guess the current is going to be determined by the motor & the load on it so those things work by altering voltage?

I guess if those things lower voltage they will increase resistance & heat in the windings till the motor overheats???

Did a little research. A simple single phase induction motor, I believe, basically spins at the input frequency (60hz). I believe things like this modify the frequency to slow down the motor. I think they are called adjustable frequency convertors. This can be bad on the motors b/c w/ AC power, as frequency decreases, impedance increases (basically resistance) which will make your motor run hotter. Motors that are designed to work w/ these devices are generally built much heavier & can take this better.

Maybe one these would be alright as long as you didn't slow it too much & you only used it w/ very light load, like when polishing an edge.

 

[combs6136]

A piece of square tubing with two hockey pucks make a great vise for handle work.. Email if interested and i can send you a picture of one i made.....combs6136@yahoo.com

 

[gixxer]

Dang, gixxer, I just looked at that surface plate you linked to. I like it. That seems like a good price but how much did shipping cost?

There is a Wholesale tool here in Tampa so I stop there a couple times a week on the way to work to buy stuff and dream. If you go to a countertop maker you can get thinner granite maybe for free as they always should have scrap layin around. Maybe they even have the stuff 3in thick. The stuff they use might not actually be measured to .0001 (or whatever it is) but it is pretty darn flat.

 

[gixxer]

Did a little research. A simple single phase induction motor, I believe, basically spins at the input frequency (60hz). I believe things like this modify the frequency to slow down the motor. I think they are called adjustable frequency convertors. This can be bad on the motors b/c w/ AC power, as frequency decreases, impedance increases (basically resistance) which will make your motor run hotter. Motors that are designed to work w/ these devices are generally built much heavier & can take this better.

Maybe one these would be alright as long as you didn't slow it too much & you only used it w/ very light load, like when polishing an edge.

Mostly 3 phase motors will work with variable speed and a VFD (variable frequency drive). Here are mine.

 

[Vulcanite]

What about the $15 "router speed control" dial devices HF sells? Are they a simpler analog frequency modulating device?