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Old 3rd March 2012, 02:51 PM   #101
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There will be felt at the top of the magnets. so the ribbon will not touch the magnets.
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Last edited by ABJensen; 3rd March 2012 at 02:57 PM.
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Old 3rd March 2012, 04:19 PM   #102
a.wayne is offline a.wayne  United States
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Quote:
Originally Posted by ABJensen View Post
Working on new 2-way ribbon, with cone woofer. finished the midrange ribbon
7my alu one paper, 75cm long 12,5 cm wide. The tweeter will be 12mm*750mm. the woofer AE dipole 18".
AB, what method ae you using to make those diaphragms....



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This is how the tweeter ribbon will look like. The ribbon will be attached to the
magnetes by using nano iron in the glue.
Why the curve ...?
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Old 3rd March 2012, 08:42 PM   #103
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Quote:
Originally Posted by a.wayne View Post
AB, what method ae you using to make those diaphragms....





Why the curve ...?
In denmark you can buy alu foil with thin paper in the supermarket.
I cut alu strips and tape them together one the paper side. Then i lay thin paper one the alu side and brush it with thin glue.Then the tape is removed cautiously.The paper that originally sat on aluminum is removed with water.

I have made the magnets curved because no paralelle faces. Magnets closer together. The ribbon touches only slightly.Ribbon is magnetic. To make the a better magnetic field, and dampen resonances in the ribbon.

Last edited by ABJensen; 3rd March 2012 at 08:53 PM.
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Old 11th April 2012, 08:58 AM   #104
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tweeter ribbon measured with XTZ. front side 1.5m (nano2)
And backside in nearfield 10cm.(nano1)
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File Type: jpg nano1.jpg (174.5 KB, 250 views)
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Old 15th July 2013, 03:11 AM   #105
srinath is offline srinath  United States
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Is this something similar we can use for the ribbon with mylar glued into it -
Amazon.com: CAP 2 mil Mylar Reflective Film - 25 feet x 50 inches: Patio, Lawn & Garden

Thanks.
Srinath.
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Old 15th July 2013, 09:51 AM   #106
AndrewT is offline AndrewT  Scotland
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2mil (0.002") seems too heavy.
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regards Andrew T.
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Old 15th July 2013, 12:56 PM   #107
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Yoy can buy 25my. 0,5 mil . mylar selfadhesive here:Psp Mylar Tape 50mm X 3m - Clear - Marine Tapes - Other Chandlery

Bernt Båndsei.
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Old 15th July 2013, 01:59 PM   #108
srinath is offline srinath  United States
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Default 1 mil too

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Originally Posted by AndrewT View Post
2mil (0.002") seems too heavy.
Also available in 1 mil - obviously its too heavy ... its for garden reflective sheeting ...
Cool.
Srinath.
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Old 15th July 2013, 04:35 PM   #109
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Here is the 0.5 mil mylar selfadhesive:http://solutions.3m.co.uk/wps/portal...olyesterTape/#

Bernt Båndsei
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Old 16th July 2013, 04:52 PM   #110
srinath is offline srinath  United States
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I was trying to get something I can use to make the ribbon in a carver Al-iii speaker.
Its a planar magnetic.
Looks like its going to be too hard.
Thanks.
Srinath.
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