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A cardboard box is a workable enclosure, provided you're around to put out a fire should anything go wrong. Soak the inside before printing, you can blast the thing with a hairdryer to get it up to

I agree with all that Carvel said and would add that sample of 1 (well two in Carl's case) is hardly a representative one. And it works both ways, if say 99% of the motors are known to run for years

Hi Jay, I have a Prusa Mk3s, the original nylon test gear was printed with no enclosure on a warm day with the window open to avoid fumes. That one printed extremely well, but it definitely lulled me

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

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

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

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

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

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.

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

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

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

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,

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

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:

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

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

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

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

*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