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Form 1 foam pad drawing

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Mikael
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Mikael posted on Mon, Oct 1 2012 6:08 PM
Hi, I won an internet auction the other day. It was a pair of Form 1 headphones. Since they (as do many) miss the foam pads they went cheap. I emailed one of the sponsor companies that used to sell the B&O restoration kit. But it seems it is no longer available. So I'm thinking why not try and make my own. Trouble is I don't have any reference to start from. So do any of you guys have Form1 with the pads intact and are willing to take close ups and make a drawing? I saw online that some guy actually did retrofit Form 2 pads with good sounding results but that looks wrong I guess. And does not solve the prism like comfort foam piece above each element. Best regards, Mikael

Beocenter Overture | Beolink passive | CX100 | CX50 

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Rich
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Rich replied on Tue, Oct 2 2012 5:15 PM

I have Form 1s which were purchased from Lee's shop last year.  Lee's shop had restored them with the B&O kit so the pads are in perfect shape.

How can I help?


Mikael
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Hi,

Great! Since the kit is obsolete I'm thinking of making a drawing of the original foam pads and headrest supports. So I suppose accurate measurements of the two foam pieces on each side. Then some close-up pictures of the same items. Hopefully this could end up as a type of tutorial how to make your own.

Regards,

Mikael

Beocenter Overture | Beolink passive | CX100 | CX50 

Cleviebaby
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Mikael,

I have a pair of Form 1s with relatively new pads attached that you can borrow to use as a template. If you pm me your address, I'll post them to you.

Cleve
Rich
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Well, let me do a first draft here.

The piece that sits on the ear is essentially a rectangle.

42 mm up and down

40 mm front to back

7 mm thick

The density of the foam that sits on the ear is a bit less dense than a pair Sony headphones I have sitting here on my desk.  The piece that sits above the ear is even less dense.

That piece has a cross section very similar to a stylus.  See two posts down.

13 mm at the base

15 mm tall

Tapers down to about 6 mm at the top, which is rounded

35 mm front to back

 



Rich
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A second view

 



Rich
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And a sketch of the piece that sits above the ear.  See how it has the cross section of a stylus (inverted)?

 



Rich
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Rich replied on Thu, Oct 4 2012 12:21 AM

Cleviebaby:
Mikael,

I have a pair of Form 1s with relatively new pads attached that you can borrow to use as a template. If you pm me your address, I'll post them to you.

Cleve

Very generous offer of Cleve.  I suggest you take him up on it, if for no other reason to "feel" the density of the foam.


Mikael
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Cleviebaby:
Mikael,

 

 

I have a pair of Form 1s with relatively new pads attached that you can borrow to use as a template. If you pm me your address, I'll post them to you.

 

 

Cleve

A very kind offer indeed! I plan to first find sources of suitable foam material. I will get back to you after that. 

Beocenter Overture | Beolink passive | CX100 | CX50 

Mikael
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Sweden
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Rich:

Well, let me do a first draft here.

The piece that sits on the ear is essentially a rectangle.

42 mm up and down

40 mm front to back

7 mm thick

The density of the foam that sits on the ear is a bit less dense than a pair Sony headphones I have sitting here on my desk.  The piece that sits above the ear is even less dense.

That piece has a cross section very similar to a stylus.  See two posts down.

13 mm at the base

15 mm tall

Tapers down to about 6 mm at the top, which is rounded

35 mm front to back

 

Thanks! Exactly what I was looking for. Next up is trying to find suitable foam material and make some tests cutting it to shape. I was thinking buying bigger foam pads and then cutting them down to size. But if I find the stuff as raw blocks that would even be better. Suggestions are welcome ofcourse.

Beocenter Overture | Beolink passive | CX100 | CX50 

boreades
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Restauration project, certainly not perfect but very comfortable...

Philippe


Jamian
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Hi

I got the dimensions off this forum, created hollow geometry and 3D printed in a flexible materialCool I covered the ear pads in fabric, using a technique similar to the CX100s; pinching the material in small slots at the corners. I have tried a few geometries for the head pads. The ones shown are the best so far, but could be more flexible. Shame the 3D printing material is not black.Wink

Love = My  Beomaster 1001 + Beovox 2700

wokbelly
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You don't have a file of this? id like to send it to a friend of mine so hed print me a pair for my form ones since i don't have a 3d printer

Jamian
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Jamian replied on Mon, Dec 13 2021 2:50 AM

Hi. I am not sure if I still have this file hiding somewhere. I still have the headphones. To be honest, the first attempt is not that great. They are not comfortable to wear for a long time. I want to redesign the parts with more flexibility, when I get the time. 3D tech has come a long way since 2015 :). If I find the files, or conjure up new ones. I’ll post to this thread in the future. 

Love = My  Beomaster 1001 + Beovox 2700

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