Author Topic: axial generator with lamination core (Read 114205 times)

mbouwer · « **Reply #99 on:** October 18, 2018, 04:30:37 AM »

Blade pitching bars.

mbouwer · « **Reply #100 on:** October 20, 2018, 04:23:54 AM »

Cardboard mould to shape the spinner.

mbouwer · « **Reply #101 on:** October 23, 2018, 06:52:52 AM »

3m. diameter blades + spinner. Now I want to apply sealing collars around the blade roots.

mbouwer · « **Reply #102 on:** October 28, 2018, 05:19:13 AM »

The suspension and the sealing of the blades is now light, but I find it is too complicated to fabricate.
I would like to try to shape it in a simpler way with a larger blade root.

mbouwer · « **Reply #103 on:** November 01, 2018, 04:13:09 PM »

The best would be to shape the whole suspension and blade bearing in composite.

SparWeb · « **Reply #104 on:** November 03, 2018, 11:22:45 PM »

Quote from: mbouwer on November 01, 2018, 04:13:09 PM

The best would be to shape the whole suspension and blade bearing in composite.

Difficult to understand that last point, Mbouwer. Composites of all kinds are not strong against bearing stress, and they definitely do not hold a good surface finish when exposed to alternating pressure, as bearings do.

mbouwer · « **Reply #105 on:** November 05, 2018, 01:07:20 PM »

Let us discuss the blade suspension bearings. How can we shape a good design?
I think we can not use the type of heavy slewing ring bearings like we see in the big turbines.

SparWeb · « **Reply #106 on:** November 05, 2018, 07:26:26 PM »

Quote

Let us discuss the blade suspension bearings.

Certainly. You start. What do you actually plan to use?

mbouwer · « **Reply #107 on:** November 06, 2018, 05:25:55 AM »

As you can see on this page, and in all my contributions to the forum, it is my intention
to search for cooperation with windmillfriends for improved designs.

In reply #87 I show steel shafts and composite hubs.
It seems to me that the axes also should be performed in composite.

mbouwer · « **Reply #108 on:** November 08, 2018, 04:24:08 AM »

Perhaps blade adjustment will become more and more a hot item at this forum
if we can 3D print the blade bearings

SparWeb · « **Reply #109 on:** November 08, 2018, 08:51:32 PM »

Interesting.
The limitations in those ideas will become apparent to you soon, since you are so close to final assembly.

mbouwer · « **Reply #110 on:** November 11, 2018, 06:13:10 AM »

In the course of time more cooperation amongst windmillfriends will arise,
and then there are almost no limitations.

mbouwer · « **Reply #111 on:** November 15, 2018, 06:52:31 AM »

Blade bearings molds have to be made.
As a starting point I want to take sealing rings 100 x 125 mm around the blade roots.

mbouwer · « **Reply #112 on:** November 29, 2018, 02:20:07 PM »

Tryout to shape a mould for the blade axle.

mbouwer · « **Reply #113 on:** December 01, 2018, 06:03:08 AM »

Polyester blade axle ( 300 gram )
The idea is to insert the raw edge in the polyester of the spinner.

mbouwer · « **Reply #114 on:** December 02, 2018, 04:32:35 AM »

Hub mould with an edge to shape a suitable space for the blade root sealing.

mbouwer · « **Reply #115 on:** December 03, 2018, 07:45:41 AM »

The hub has to be inserted in the polyester blade root.

The aim is that the bolt and nut, together with the slide bearing, can shape a rotatable blade suspension.

mbouwer · « **Reply #116 on:** December 06, 2018, 03:07:35 AM »

Lightweight blade axle and hub.
Now I want to pull apart the bearing positions to an intermediate size of 0.5 m.

mbouwer · « **Reply #117 on:** December 08, 2018, 05:17:48 AM »

Modified mould.

mbouwer · « **Reply #118 on:** December 11, 2018, 04:49:26 AM »

Polyester blade axle (683 grams)
I want to make another one with a mounting flange.

mbouwer · « **Reply #119 on:** December 22, 2018, 12:48:41 PM »

Figuring out how to make a steel version with a minimum of material.

mbouwer · « **Reply #120 on:** December 24, 2018, 10:18:50 AM »

The cuff. Later on I want to revolve it on 100 mm diameter in the lathe.

mbouwer · « **Reply #121 on:** December 31, 2018, 09:32:02 AM »

Steel blade axle 1398 grams.
If I can adjust the mould of reply#117 with a flange
the polyester implementation seems better suited.

mbouwer · « **Reply #122 on:** January 01, 2019, 12:18:05 PM »

Happy new year to all windmillfriends.

SparWeb · « **Reply #123 on:** January 02, 2019, 11:30:46 PM »

You too!
Thank you Mbouwer, for keeping up the progress.
We look forward to seeing the result this year, I hope!

mbouwer · « **Reply #124 on:** January 03, 2019, 11:58:28 AM »

Thanks Sparweb,
It's all about sustainable energy
and I find it a wonderful hobby.

mbouwer · « **Reply #125 on:** January 05, 2019, 08:56:58 AM »

Back on the test stand. The generator composition as a base to mount the blade axles.

mbouwer · « **Reply #126 on:** January 15, 2019, 01:54:25 PM »

To shape some adjustments on the forward magnetring I taped the magnets.

mbouwer · « **Reply #127 on:** January 17, 2019, 05:57:28 AM »

Pressed air, vacuuming, sticky tape,
it is not yet easy to get the steel dust particles of between the magnets.

mbouwer · « **Reply #128 on:** January 24, 2019, 03:26:54 PM »

On this basis, I would like to make an improved implementation.

SparWeb · « **Reply #129 on:** January 25, 2019, 10:51:15 PM »

What would you like to improve?
Do you want to test the performance of what you have done so far?

mbouwer · « **Reply #130 on:** January 26, 2019, 05:04:05 AM »

My belief is that axially with laminated iron core in the coils is a good starting point.

But I think I can improve my workpiece regarding for example:
manufacturing technique
stiffer frame
smaller diameter
more precise gap width ajustment

SparWeb · « **Reply #131 on:** January 26, 2019, 12:10:02 PM »

You will not know what you need to improve until you put your machine into service.
I (and probably many others) have been eager to see your machine fly for a long time.
You are so close now, don't give up hope!

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Author Topic: axial generator with lamination core (Read 114205 times)