Re: Anyone live in North Florida or South Georgia?
Mike, A few years back I lived in Bradfordville area off US319 and probably would have been close enough to drop by and chat over chips with you, but in 2010 I moved to northeast Georgia. Well Georgia
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Bill Nite
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#27526
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Re: V10P Headstock Fiber Gear Replacement
Ryan, this is a really interesting read. Thanks for all of the information! What printer did you use for the nylon gears? I've been thinking about doing something similar, but unsure if my open-frame
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Jay
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#27525
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Re: vfd load reactor suggestions?
I can recommend adding a surge protection device at the electric panel for whole house protection. https://a.co/d/2GwZnZX Put one of these on and if your house or utility power supply cable gets hit
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Andrei
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#27524
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Re: vfd load reactor suggestions?
Hi Len Some VFD¡¯s are noisier than others so you seem to have made a fortunate choice It also depends on the motor¡¯s history The Emco motor tends to run hot so if it was previously in an
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cwlathes
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#27523
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Re: vfd load reactor suggestions?
Maybe I've been living dangerously, but I've run that same motor (on a VP10) from a VFD with no load filter for 10 years with no hint of a problem. I also have a VFD on an old BP clone mill of similar
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Len Sherman
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#27522
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Anyone live in North Florida or South Georgia?
Hello Guys, Does anyone live in North Florida or South Georgia in the group? The past 15 years we have been in the South and away from friends and family where I grew up and worked in Western NY.
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Michael OConnor
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#27521
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Re: vfd load reactor suggestions?
Hi Ross All noted , and thanks for the sine filter link My ¡°how it works¡± comments were directed more to Sierra The theme of this discussion has been whether EMCO motors can be damaged by use with
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cwlathes
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#27520
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Re: vfd load reactor suggestions?
Hi Vedran Don¡¯t know what the B-H curve for Microwave Oven Transformer looks like . It would make sense to operate near saturation as that would give a constant voltage feed for the magnetron Maybe
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cwlathes
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#27519
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Re: vfd load reactor suggestions?
I have an original (old) emco 240v 3ph motor which I am running via a vfd and I don't want to wipe out the motor's insulation from the vfd spikes. It is an intermittent us hobby machine, from project
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Sierra Tunafish Monkeymind
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#27518
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Re: vfd load reactor suggestions?
Thanks Carvel, but my question was to Sierra as to the problem he wants to resolve by using a load filter, not what this does.? I'm well versed in principles of filters (reactor/chokes, sine filters,
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Morepork
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#27517
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Re: vfd load reactor suggestions?
I'd chisel or hacksaw-off the secondary... 2000V is not something one just shakes off and hobbyists sometimes tend to keep kludges outside of appropriate enclosures. No need to press out what is left
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Vedran
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#27516
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Re: vfd load reactor suggestions?
The goal is to have the magnetic fields linked. Chris P ________________________________ Sent: Sunday, March 23, 2025 12:47 PM To: [email protected] <[email protected]> Subject: Re:
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bcstractor
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#27515
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Re: vfd load reactor suggestions?
Hi Bill An interesting idea ? You would just need to find 3 transformers with intact primaries with the same inductance Coincidentally this might even be in the correct ball park ? I have a
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cwlathes
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#27514
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Re: vfd load reactor suggestions?
Sierra, If you¡¯re looking for cheap, I have a DIY choke idea for you. The concept design came from a project I was researching to convert a straight AC welder to DC output, so the purpose of the
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Bill Nite
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#27513
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Re: V10P Headstock Fiber Gear Replacement
Ryan, profile shift selects a different section of the same cycloid curve that defines the tooth shape. So the module, pressure angle and tooth count remain while the center distance changes, and
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bozzo
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#27512
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Re: vfd load reactor suggestions?
Hi Sierra and Ross Right . . today is Sunday so let¡¯s see what we can do ? Firstly to recap for Ross as to why we want to do this The output of a VFD is a square wave of full voltage but varying
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cwlathes
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#27511
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Re: Ps, Re: [emcoV10lathe] vfd load reactor suggestions?
*Please note this explanation works on concept level, and is not always what is actually happening.* VFD itself doesn't produce voltage spikes, it turns the power fully on and fully off very quickly
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Vedran
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#27510
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Re: can I drill the hole in the carriage for the cross slide lead screw hole through?
Eric You'll obviously make your one choice in the end, but if it was my machine, I'd keep the current leadscrew arrangement if possible. I think I went looking once and decided a ball nut should fit
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Vedran
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#27509
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Re: FB2 Mill 3 Phase Motor Help
Hi Jay That ties up with the info which I have from RIFA capacitors and other The automatic feed with its gearing and inertia can present a significant load even without actually driving a cut , and
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cwlathes
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#27508
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Re: FB2 Mill 3 Phase Motor Help
Hi Carvel, I was always planning on running the motor at constant speed, and I had forgotten about the capacitor option. I think I might try that in the first instance, and see if I'm happy with that
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Jay
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#27507
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