Has anyone seen Lasersabers new motor runs on 1000uf cap

[gyulasun]

Hi Mags,

Nice coil, do you have an L meter to measure its inductance?

Gyula

[TinselKoala]

Pretty!
It sounds like you will have a miniature Newman motor, with all that wire and resistance. How did you count the turns while winding?

Does your wire need to be scraped or does the enamel melt away when soldering the wire?

[Magluvin]

Hi Mags,

Nice coil, do you have an L meter to measure its inductance?

Gyula

Got an LCR meter coming, wed or thurs.  Im very interested to find out what the inductance is.     Can ya tell? 

I had looked at meters of the sort for some time. Some are expensive, some are 'scary' cheap. So I went middle of the road. Gunna wind some coils. 

Mags

[Magluvin]

Pretty!
It sounds like you will have a miniature Newman motor, with all that wire and resistance. How did you count the turns while winding?

Does your wire need to be scraped or does the enamel melt away when soldering the wire?

I was thinking the same. In fact, if you remember zeropoint132, his self running no bearing bedini, it may have worked as shown, like Lasersabers motor, give it a spin, it charges the cap quickly and runs for a while on that. It could look like its self running(in the sense that we think of) but it could be just using tiny amounts of power from the charged cap like LS's motor around 1ua. Zeropoint used 4000 turns bifi, 1 wire 30awg and the other 46awg I believe. All wound on 1 bobbin, it just may have had attributes of LS's  EZ motor.

My laser rpm meter has a count function. Its one of the more common meters out there, just with a Matco Tools name on it. So I used masking tape to hold the 'on' button and put a piece of reflective tape on the chuck of the cordless drill. I just keep 1 of the black spacers in the drill chuck and just pop in the white bobbins so I dont have to mess with the chuck. The reflective tape needs some help sticking to moving things, of which, those are the things we need it to stick to. lol  The Ryobi 18v($69 bucks, nice tool, except wont hold tiny bits) lays down on its side nice with the chuck off the table.

Yes, the wire seems to need something beyond solder to remove the enamel. Im looking for a solvent, one that works quick I hope. Some forums say vinegar, aspirin? Ive got some acetone to try tonight. Got some 2500 sand paper also some 0000 steel wool, just to try some things. I really dont want to bite into the copper much if not at all. If you have any suggestions they would be well appreciated.


Going by the resistance of the coil, it should be around 450ft. Will have to measure 1 foot of this wire to see, but 42awg can range from 1.5 to 1.8ohm per foot. Will measure that in a bit. So 10,000 ft plus with all coils in series.

Mags

[gyulasun]

  Im very interested to find out what the inductance is.     Can ya tell? 

Hi Mags,

Yes, going by the estimated sizes of the bobbin, your coil may have an inductance between 160 mH to 175 mH...   

your bobbin ID may be 5 to 6 mm,  winding OD may be 16-17 mm, winding length may be 3 to 3.5 mm, you wound 3300 turns, are the bobbin sizes in the 'ballpark'?

Gyula