Mobile 3 phase VFD

[79bonanza]

Well I have a few machines in the shop that are three phase, I'm eventually going to buy a 15hp rotary phase converter to run the shop but for now to keep things more budget friendly I built a small stand for my VFD.

Its pretty handy to be honest, it's rated for up to 1.5hp motor which covers a lot of machines, drills, grinders, bandsaws etc.... it can run my lathe but not in the higher speeds.

Just figured I'd throw this idea out there. I think I have like 50 bucks in it not including the VFD

 

[Bent77]

Yeah the VFD can be expensive, but this is a great option, especially on older machinery that speeds are all belt driven.

 

[79bonanza]

Yeah, I don't know if it would run a mill or big compressor but it works good for me.

I run my bandsaw, drill press, and grinder off of it with no issues

 

[Bent77]

Yeah, I don't know if it would run a mill or big compressor but it works good for me.

I run my bandsaw, drill press, and grinder off of it with no issues

A friend of mine uses it on his South bend and his M head. Not sure which VFD he is using

 

[79bonanza]

Yeah this VFD is only rated up to 1.5hp, I've ran my lathe on it but I couldn't run in the top 3 speeds.

Converter sizing is kinda weird, too big can cause issues and too small can cause issues. Luckily most older machines run .5-1.5hp motors. Seems weird to me that too big of a converter will cause starting issues