I am limited to 110v/15A in my garage. I have a 1hp dust collector that I run along side my table saw and other shop tools. I know I won’t be able to get a spindle running off that same breaker with the controller and dust collector.
Does anyone have experence running the spindle (1.5kw) off a generator (diesel,gas,propane?)
Aside from my power limitations, I’m ready to purchase the foreman.
Because of the sensitivity of the electronics involved in the CNC machine, I would be very hesitant to use a generator. It needs to have a very clean output, not pulse in frequency (Hz), and have a very stable voltage. I am not an electrical engineer at all, but I worked on generators in the service for our mountain-top radio communications and also some 400 Hz specialized generators.
If using a generator you’d need to be very careful as @Tazmo indicates.
That being said, if you were to purchase an inverter generator, they generate ‘clean’ power that would likely be acceptable in your use case.
Here’s a brief article that explains both what @Tazmo is concerned about with ‘traditional’ generators and the more modern inverter generators that I’m speaking about:
If you’re garage isn’t to far from the house could you use a extension cord connected to a different branch circuit? If you were traveling any distance you’d want a heavy gauge cord. There are calculators available online that will suggest the proper gauge/aught for long running cords/cables based on expected max load. Essentially the longer the run and the number of conductors in the cord/cable (i.e. - there’s more heat with 240v versus 120v cord due to close proximity of the conductors). The way to get over that is to use a bigger conductor to lower the resistance/foot, allowing longer runs.
If a extension cord wouldn’t work you’d probably want to look at generator that is capable of 2500w (this is roughly 20/21 amps at 120v in ideal situations) to give you plenty of head room.
Something like this:
I don’t have a Harbor Freight generator and you might be better served to purchase something from Honda or another manufacturer, though from what I’ve read Harbor Freights generators are generally well regarded, but I don’t know that anyone has using them for long running constant duty cycles.
My Gen2 Forman (2.2kw Redline Spindle) spends substantial amounts of time running off a Honda inverter generator. So far no problems that I can perceive with that configuration.
I have an outdoor outlet maybe 15-20 ft from the garage. It’s in the samw switch with my porch light. I’d have to make sure no one switches it off while in use. Very duable though