@kontroll 50mm x 5mm x 3mm

@Tribit Making planarmagnetic drivers with em

Neat

Nice nice. Thicker, but slimmer, than my bigger ones.

I just hope they dont fucking shatter in the post

Nah, don't worry about that.

chinks better bubble wrap that shit or else

They do.

I bought from ebay so im not worried about my dosh

And if they're packaged like the ones I bought, they put little plastic spacers between them too.

its more the fact that i dont want to wait a gorrilion years

kek

Shouldn't have ordered from China then.

You've fucked up.

i mean in addition to the time already

i dont need the magnets yet anyway

ive still gota get the fibreglass substrate and work on the diaphragm

finding thin aluminium will be a pain in the ass

How thin are we talking?

http://i.4cdn.org/g/1487392420686.webm

like around 30 micron

but its gotta be at least 70mm x 70mm

That is quite thin.

Can't help you there.

yeah

No luck sourcing it from China?

planar diaphragms gotta be thin

not yet

though i havent been looking for long

im already using 20 micron kapton film for the actual membrane part

the aluminium is just the trace

and ill etch with ferric chloride

Found a 2 ton roll for $2500 for you.

kek

huh this might be good

https://www.alibaba.com/product-detail/20-30-micron-in-thickness-pharmaceutical_60239505321.html

Nice. ~Twice as much as you need. Seems quite cheap too.

yeah

i mean its aluminium foil

itd be cheap no matter what

unless it was like >5 micron or some crazy level of thin