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YES sorry, typo dvm.
Digital volt meter.




Verstuurd vanaf mijn SM-A505FN met Tapatalk

Glad you sorted it Mark :applouse:

I just had another quick search, and this came up - http://www.sentridge.com/wp-content/uploads/wiring_1ph.pdf

It's not exactly like your wiring, however it should point you in the right...

Do you have a dmv?

It would help to measure resistance with bus bars of and capacitor disconnected

Then we might get a clue on where the coils are connected.



Verstuurd vanaf mijn...

There are 3 variations of common induction single phase motors.

The fact you've only got one capacitor rules out the Capacitor Start / Capacitor Run option (provides the best of both options...

The wiring depends on what kind of single phase motor it is.
You will likely find there are 2 coils (your main run winding, then a smaller start winding) with all wires brought out to the terminals....

Haha yes last 2 pictures work for me.

There is no real difference.
effect is the same.


The bus bars i am not sure of until we know where u1 v1 w1 motor wire go.

What is confusing in the...

How it changes direction, depends on what kind of capacitor setup is being used.

Essentially you need to swap how the two windings and capacitor are connected. If all you're getting is a thud, it...

I helped a mate repair his single phase lathe a couple of years ago after the starting switch fell apart and someone lost some of the parts!
I had trouble reversing the motor ( think it had a cap...

Hi Mark,

I think some of us can.

It is just that i would want to see where the capacitor wires are going. just to be sure.

Basically one moves 1 power lead from one side of the capacitor to...

Hi everyone. Non technical newbie here so please be patient. I have bought a bare-bones 6040 CNC kit which I am fitting with 3Nm stepper motors and second hand AM882H drivers. I am a bit undecided on...

Here's a quick spreadsheet which generates random G-code rapid moves (so just G0) within a specified area. It's useful for testing your motor tuning since it will cause the machine to tend to move in...

Hi,

It doesn't do too bad in soft materials actually, but 3mm tooling in alu it didn't like. I assumed this was because the RPM was too low, but maybe it is just the CNC-3040 the spindle is...

Setting to 2.84A as you can't get 2.8A is only 3% more heat, which is negligible so you'll be fine. It's always a good idea to keep an eye on the motor temperature to start with just to be sure.

I have been making a few different jobs over the last couple or 3 weeks and nearly every one of them involves manually changing tools. This was getting to be a pain in the arse so decided to make...

Me again

I think you can probably try my program without installing anything that needs to be uninstalled if we are picky about where the files go. If this bitches about missing dll's etc., tell...

Mark,
Should be plenty of photos as Grandson needs all this for his project CV thingy.

Done a few of these previously and quick run down is to strip the motor and take measurements mainly where...

Here it is (written in the car on the way back from grandparents, had to wait til now to get internet)... send me the Gcode if you want before running it and I'll check its not done anything too...

Could stick with a worm drive and compensate for the backlash on that, either in software or use a split wormwheel sprung to eliminate backlash. If you've got 3nm holding torque then clearly that...

Is that without a pilot hole? i.e. removing a 10mm diameter cylinder? If so that requires roughly 310W (at 'reccomended' rpm). What rpm did you use?


Yeah, I bought it to put on my bike, but...

coefficient of linear expansion of steel is about 13 - 17 x 10^-6 m per m per degC. i.e. a 600mm length will expand max 0.01mm per degC, so allowing for normal working environment say +20degC +/-...

Minimum order £100, easy :) I just looked at the cost of the Y cross beam, say 40x200x700, sobering at about £70. Still, in this CNC game everything appears to work out at about £50 to £100 per part...

Yes, any motor up to 80A should be fine with that speed controller. Is the speed controller programmable? You may find that adjusting some settings (such as 'timing' and 'frequency') will make the...

Well 1700W input is 850W+ output, ~1HP theoretically you have the power to take around a 5mm deep cut with a 8mm 2 flute cutter at a feed rate of 500mm/min... but in reality your rigidity probably...

what power output do those spindles give?

Other than the machine rigidity, which looks quite reasonable (tho if you wanted to improve it take the side panels down under the table and crossmember...