Cct for pulsing F&P motor

Author	Message
RossW Guru Joined: 25/02/2006 Location: Australia Posts: 495	Posted: 10:05am 12 Mar 2006         Quote     Thanks Ross- I'll try that tomorrow- just a breeze here at present , so nothing to get excited about .mill is swinging to point in the right direction , butquivers a bit ,trying to overcome the cogging effect-thanks for your help. I probably shouldn't tell you about the day here then?! About 0900 I climbed the mast since it was dead calm. I took some surplus supermagnets up with me - some 3g ones and some 80g ones. Managed to get the "light" blade pretty much on track with 9g added at the tip (these little magnets shouldn't throw off, they're N45 and stick like the proverbial sh!t to a blanket). Then by gently running the mill a little at a time, was able to work out where the remaining heavy point was, and since the opposite side was in between blades, I couldn't add it out at the end, so used the 80g magnet right in on the hub. Got the prop almost perfectly (static) balanced. Within 10 minutes of this, the breeze had sprung up enough to get the mill spinning so I thought I better get down - but upside, I couldn't feel any vibration while I was up the mast even. A couple of hours later and I was watching a good north-westerly putting 13 amps at 50V into my batteries. (650 watts - that's nearly 50 amps into a 12V system). Anemometer shows it was only 30-35 kmh wind too. The mast still has a slight shake but nothing like the moster rattle it had before! I'm a happy dude right now, and hope it blows all night, because the guys failed to deliver more propane on friday and I'm nearly out! RossW