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National Pipe Thread Rohr mit NPT-Gewinde Das National Pipe Thread (NPT-Gewinde, NPT-Rohrgewinde) nach ASME/ANSI B1.20.1 ist eine US-amerikanische Gewindenorm für selbstdichtende Rohrverschraubungen.

Mike, National Pipe Thread Rohr mit NPT-Gewinde Das National Pipe Thread (NPT-Gewinde, NPT-Rohrgewinde) nach ASME/ANSI B1.20.1 ist eine US-amerikanische Gewindenorm für selbstdichtende Rohrverschraubungen.

Hello Bruce, Your project is very interesting for me. I use a makerbot printer and would rather have a larger plattfrom. Greetings Manfred

Luc, I create the files by myself. The surface is abraded, then treated with J-B Weld, then polished, then primed and varnished. Manfred

Hello Luc, Yes with the 3D pinter, this is really fun. I have built generators from PLA. These work well as flywheel generators on slow running machines. Greetings Manfred

Hi old-and -broken, I am only 74 years old and every things still work (but slow). If some one of you like to have the drawings for this generator, i can add them to the post. The next post is how to finde the amount of the windings for the field coil. Best regards Manfred

Hello, I am out of the workshop, with the rotor on hand to see report # 4 the rotor click here Best regards Manfred

Hello, this is part #3, the instrument in scale M 1:10 Best regards Manfred

Hello, the story goes on with part #2. the rotor 2 pages.

Hello, I have put in the first report on this subject as a PDF. I am not shure if that works, please let me kow. Manfred

Hello to all, a video from the running generator under load. 2 bulbs 12V 10W and some LED. http://www.youtube.com/my_videos_edit?ns=1&video_id=dHWZtNtdONc Best regards Manfred

Haben Sie vielen Dank! Zugabe! Hier ist die Zugabe WARNING !!!! never let a Generator over night alone. You never can see what is going on. *beer* My generatorbabys are a present from Peter. Best regards Manfred

Hello to all, this job is finished. See You again with the next project. Best regards Manfred

later on You can`t see it, that is the place where the rectifiere and the wiring is installed. The base plate works like a heat think. Best regards Manfred

to day I have had a phone conservation with one of my frinds Peter. He is in the situation of loosing his eay light, he is almost blind. We are tooking about generator and he told me that he give up and he is going to sell his pattern and drawings on generators. If some one of You like to be go...

Hello Brian, without load 27,3V DC 1000rpm with a load; car bulb 12V DC 21 watt, 1,45 A and 9,1V DC at 1000rpm I have the plan to run 3,5V bulbs on the generator, so I have to come down with the rpm. I think 10-12 Watt is a realistic output. Best regards Manfred

Hello Brian, some work from the naibourhood I have to due, after that the examination of the generator goes on. Best regards Manfred Where is the spell checker ?

Hello, the rectifiere are are temporaly installed. Phase 1 and 2 prallel conected = 26,5V DC and serial conected = 48,8V DC. The mesurement is by 1000 rpm without load. Than I have conected a bulb from the car 12V 21W see the pic. Best regards Manfred

Hello Dave, I just have made a order for a book "houw to build your on instruments". Thanks for Your help. Best regards Manfred

Larry, this rumor is going round and round in my head, a 2 zylinder belt drive or a 1 zylinder direct conected. I wait for the outcomming DC voltage to make a decision on that subject. If I can get a 12 segment komutator than I`m going to build a DC generator in the same size. Best Regards Manfred