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Old Russian Fan Rewinding  Rate Topic 
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 Posted: Tue Dec 19th, 2017 03:05 pm
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Bulent Uysaler
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Hi all, This is my first attemp to try winding. I have 3 different fan waiting for restoration. I started one of the younger one :) 1960 Russian fan. Unfortunately strator windings has been fried :). I tear down all the parts. I tried to figure out direction and turns of one side. 2 of them was much better. I measure length of wire and  its 88 m for one side and I separate turns in 20 groups.And 580 turns total. I measured diameter with my caliper and it was 0.28 mm. I couldn't find in that diameter. I decided to use 0.30.  Firstly I wound 2 x CCW and 2 CW direction. With this winding all wires and strator get hot extremely. Than I flip over CCW ones and connect according to which I found a schematics on internet Here are some photos old windings  and new one and also simple winding device I made from old cordless drill. Thanks

 

 

 

 

 

 

 

with this connection all wires was hot. I rotate CCW ones 180 degree and connect as schematics shown. Now rotor is spinning well. It's not hot. next step is one of plastic gear is damaged I will draw in cad and print from 3d printer. Also brass bushings are bit  loose. I will make new ones on my lathe.  Thanks

Last edited on Tue Dec 19th, 2017 04:18 pm by Bulent Uysaler

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 Posted: Tue Dec 19th, 2017 03:37 pm
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Thomas Peters
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Welcome to AFCA!
Hope that you find your visits here  to be of help, and interesting.

Interesting fan  you are working on. Please, when reassembled, take some photographs of it completed.

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 Posted: Wed Dec 20th, 2017 01:28 am
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Jeff Jones
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Nice! Can you make different kinds of gears in CAD if we had the specs? I'd love to be able to 3d print a gear I need but I don't have the CAD skills to design it

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 Posted: Wed Dec 20th, 2017 07:04 am
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Bulent Uysaler
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Hi Jeff Thanks
Of course you can make any gear or any parts with 3d printer. Design and drawing takes some time. But if you use fusion 360 it's quite easy. check some useful  tutorial in youtube

Below "south pointing chariot" parts and gears are printed in 3d printer by me.




Last edited on Wed Dec 20th, 2017 07:51 am by Bulent Uysaler

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 Posted: Wed Jul 4th, 2018 10:22 am
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Bulent Uysaler
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Hi,
I drew damaged gear on cad according to measurements. After that I print it from 3d printer. I attached original psition works well.


















 

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 Posted: Wed Jul 4th, 2018 05:22 pm
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Ryan Lemke
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That is awesome!

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 Posted: Wed Jul 4th, 2018 08:06 pm
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Steve Stephens
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You are a very talented man Bulent.  Thank you for sharing your photos and fabrication with us.

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 Posted: Thu Jul 5th, 2018 08:01 am
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Bulent Uysaler
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Thanks for your kind comments. Regards

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 Posted: Tue Jul 10th, 2018 03:25 am
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Jeff Jones
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That is awesome! I'll have to give fusion 360 a look. Do you mainly need the measurements and it'll draw the gear? Or do you have to actually hand draw it out with the mouse?

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 Posted: Tue Jul 10th, 2018 06:30 am
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Bulent Uysaler
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Hi Jeff
Gear size does matter. Therefore you need exact measurements from old one. You may see at first photo. I measure inner, outer diameter, lenght etc with caliper. After that I draw on Fusion.

At the moment I generate a new gear set for Siemens fan. But now all the gears are missing in the gearbox. I have to figureout gear ratio and diameter

Good luck

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 Posted: Wed Jul 11th, 2018 02:30 pm
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Richard Daugird
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How about some pictures of the whole fan?

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