awesome build; printing those forms up sure makes it look quick but I bet that takes a while. so when you say full sweep you mean 1 revolution when you have it on the scope. Maybe explain why you detuned it for the lower voltage if you don't mind for the dummies amongst us.
I wanted the generator to make good power, but not be so strong as to overpower the turbine. Another goal was to see if I could hit a design target based on theoretical calculations. I did not have a lot of confidence in my magnetic field strength estimates, so I tried to err on the high side knowing it could always be lowered by increasing the gap between the magnets and the coil. Running the voltage test and then adjusting the gap was a way of "tuning" the generator for the application.
When I say "full sweep," I just mean one sweep of the oscilloscope. The generator makes eight cycles in one revolution (8 poles). I just need to know the frequency of the displayed waveform to get the rotational speed. To calculate rpm, I just take the frequency recorded on the scope (cycles / sec), divide by 8 (cycles / rev) to get revs per second, and then multiply by 60 (sec / minute).
At 00:14 the the supports at the center holding the bearing are a lot narrower than the rest of structure. Why are they like that and not as thick as the rest of the structure?
I wasn't too worried about structural strength and I just wanted to get the thing printed. I got lazy and just drew a hole in the middle of the outer pieces to cut down on print time a little. In other words, there is no reason for that. :-)
Any chance you would be willing to share that stator and winding jig stl files? I have struggled getting the correct size jig set up for all my attempts at different serpentine coils and that looks like it would prevent even me from messing it up! I understand if you are not looking to share but figured it doesn't hurt to ask.
How are you? My name is Urs. I hope you are from Khareet. I have been searching for videos for a long time, but I have not found any such videos. Please express your interest in Jess. You will tell me that I am from Pakistan. I want you to make such videos. For running a DC or AC turbine which does not cost much money, thank you very much from Pakistan, I hope you will consider the matter.
awesome build; printing those forms up sure makes it look quick but I bet that takes a while. so when you say full sweep you mean 1 revolution when you have it on the scope. Maybe explain why you detuned it for the lower voltage if you don't mind for the dummies amongst us.
ahhh, just read the description fully... my bad
I wanted the generator to make good power, but not be so strong as to overpower the turbine. Another goal was to see if I could hit a design target based on theoretical calculations. I did not have a lot of confidence in my magnetic field strength estimates, so I tried to err on the high side knowing it could always be lowered by increasing the gap between the magnets and the coil. Running the voltage test and then adjusting the gap was a way of "tuning" the generator for the application.
When I say "full sweep," I just mean one sweep of the oscilloscope. The generator makes eight cycles in one revolution (8 poles). I just need to know the frequency of the displayed waveform to get the rotational speed. To calculate rpm, I just take the frequency recorded on the scope (cycles / sec), divide by 8 (cycles / rev) to get revs per second, and then multiply by 60 (sec / minute).
@@MickEMaus3000 so you're trying to tune to the power band/rpm for those wings then.
@@itsandbits1 Yes. I want some power, but I don't want so much drag that the wings stall.
At 00:14 the the supports at the center holding the bearing are a lot narrower than the rest of structure. Why are they like that and not as thick as the rest of the structure?
I wasn't too worried about structural strength and I just wanted to get the thing printed. I got lazy and just drew a hole in the middle of the outer pieces to cut down on print time a little. In other words, there is no reason for that. :-)
Any chance you would be willing to share that stator and winding jig stl files? I have struggled getting the correct size jig set up for all my attempts at different serpentine coils and that looks like it would prevent even me from messing it up! I understand if you are not looking to share but figured it doesn't hurt to ask.
Actually, I intended to make all the files available for the turbine, but never got around to it. Do you have a favorite place to get them from?
@@MickEMaus3000 I do not have a preference so whatever is easiest for you. Thank you for being willing to share your work!
I have my 12 neodymium magnet of 20*10*3mm what wire gauge and turns to make 9 coils
I'm hoping to make a video showing how I calculated the number of turns etc. But it would have to be adapted for different generator configurations.
How are you? My name is Urs. I hope you are from Khareet. I have been searching for videos for a long time, but I have not found any such videos. Please express your interest in Jess. You will tell me that I am from Pakistan. I want you to make such videos. For running a DC or AC turbine which does not cost much money, thank you very much from Pakistan, I hope you will consider the matter.