Jerry Blades a Tape Drive Motor means a mill in a day.

[TomW]

Parts needed:

3 Mike Modded JeryBlades.

some aluminum scrap.

1. 8" aluminum pulley.
   
1. 30 volt Ametek Tape Drive Motor [TDM].
   
1. 3/4 inch floor flange.
   
1. 6 inch 3/4 pipe nipple.
   
2. 4 inch muffler clamps
   
   

a small piile of 10-24 screws and washers / nuts.

[wiredup]

hi tom are you able to keep 12 volt batteries charged up and at what wind speed does it take.thanks

[TomW]

Wiredup;

Well I don't have an annemometer so everything is by what wind maps say was happening,

I can get 6 volt "trickle" charge at around 9 mph winds. Thats around 250 milliamps or so [.25 Amps].

In gusts reportedly to 28 MPH I was seeing bursts up into the 3 to 5 amp range into fairly charged up [12.5 volts] 400 AH of batteries @ 12 volts. It seems to be able to  sustain a steady amp+ in around 15 MPH.

It is no powerhouse but it seems to do OK all things considered, price, effort, location, etc.

This particular mill is mostly "proof of concept" type stuff and I have been more concerned with mechanical function than logging charge rates.

Yesterday my improvised balancing scheme of duct taped lead bullets to the pulley shucked a weight and went violently out of balance in the 45 mph gusts we had. I shut her down, locked the prop and this morning brought it into the shop. No damage but it sounded like a jackhammer when it was unbalanced. I will be tweaking it for some other issues like pivot point balance and rebalancing the blades in a more permanent fashion today.

Output Amps VS RPM data on these motors is in one of my other diary entries if interested.

Cheers.

TomW

[no1redraidersfan]

Do you have any suggestions on how to make a wind power
generator out of raw materials, but I get the motor and gears.
The fan blade is 18 inches diameter and the axis of rotation is 11
to 12 inches above table level. Please help me and if you have
any web sites or suggestions (would be better) this would be
great for school project not high budget.
Its for a school project so not as big as yours.
Thanks
joe

[kurt]

http://www.otherpower.com/toymill.html

http://www.otherpower.com/otherpower_experiments.html

[Techstuf]

Liked the website there Tom!   Some real good hands on YE going on!  Your idea of the Uncoil was intriguing,  I see what you mean. I recall seeing something vaguely similar in some old patents.  Let me know and I will get them to you in PDF format.

Peace,

TS out

[TomW]

TS;

Thanks for the compliment on my site! It is falling behind lately as I am doing more and documenting less with nice weather.

As far as the uncoil goes its one of those "looks good on paper" things that doesn't really work as expected. Marty over on IRC did some tests and it did not give much if any improvement over standard coils in his tests. I can't find the link just now but if i find it i'll post it for you.

Cheers.

TomW

[TomW]

TS;

Its over here:

http://www.martysplace.bravepages.com/uncoils.htm

Cheers.

TomW