I've been dabbling in alternative technologies for a while now.
Usually they involve gluing 1um thick mylar to something.
I have very rarely been able to make anything close to a perfect diaphram.
For starters getting the mylar to be taught without wrinkles and without ripping the mylar is..somewhat of a challenge.
I currently just unroll the mylar and kind of stretch it out onto a mirror and kind of hope for the best and gently push the wrinkles and bubbles out.
Then I apply super 77 to it and apply the aluminum.
However, this is crude, annoying, slow, and imperfect.
I've tried ordering rolls of metalized mylar from china but they always tell me something along the lines of "sorry this is meant for capacitors" and then shut me out completely, the moment they get a hint that I am doing something unusual which is hard to avoid because they ask for a bunch of capacitor related technical parameters that I don't need or don't understand.
I'm not sure why they just don't take my money...
In any case. How would a professional do this?
Is there some contraption I can use to accomplish this quickly and easily with perfect results every time?
Usually they involve gluing 1um thick mylar to something.
I have very rarely been able to make anything close to a perfect diaphram.
For starters getting the mylar to be taught without wrinkles and without ripping the mylar is..somewhat of a challenge.
I currently just unroll the mylar and kind of stretch it out onto a mirror and kind of hope for the best and gently push the wrinkles and bubbles out.
Then I apply super 77 to it and apply the aluminum.
However, this is crude, annoying, slow, and imperfect.
I've tried ordering rolls of metalized mylar from china but they always tell me something along the lines of "sorry this is meant for capacitors" and then shut me out completely, the moment they get a hint that I am doing something unusual which is hard to avoid because they ask for a bunch of capacitor related technical parameters that I don't need or don't understand.
I'm not sure why they just don't take my money...
In any case. How would a professional do this?
Is there some contraption I can use to accomplish this quickly and easily with perfect results every time?
Try sticker glue, used to make stickers by applying to the back of paper, or film.
Takes about ten minutes to dry out.
Ask at a printing shop, or a place that supplies to printing businesses.
Consistency like thick honey, slight solvent smell, white in appearance, dries to transparent...
Takes about ten minutes to dry out.
Ask at a printing shop, or a place that supplies to printing businesses.
Consistency like thick honey, slight solvent smell, white in appearance, dries to transparent...
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Post "annoying capacitor technical questions" here and we´ll help you fake a convincing order 😉
What those guys can do routinely is NASA technology for us.
What those guys can do routinely is NASA technology for us.
Yeah I was thinking the people here would be interested in some samples if I could score some.
Most of them require orders by the ton, but some allow a 20kg order.
I would take you up on that offer Fahey, but I actually managed to get a response last night after pestering them for long enough and they stated that the mylar cannot be lower than 4um and the aluminum cannot be higher than 200nm.
Which is...suboptimal to say the least.
Unfortunately the other companies require 1 ton minimal orders.
I'm thinking It might be best for me to DIY a vacuum vapor deposition chamber and slide some 1 micron or half micron thick mylar into it.
Here I go down another rabbit hole
Most of them require orders by the ton, but some allow a 20kg order.
I would take you up on that offer Fahey, but I actually managed to get a response last night after pestering them for long enough and they stated that the mylar cannot be lower than 4um and the aluminum cannot be higher than 200nm.
Which is...suboptimal to say the least.
Unfortunately the other companies require 1 ton minimal orders.
I'm thinking It might be best for me to DIY a vacuum vapor deposition chamber and slide some 1 micron or half micron thick mylar into it.
Here I go down another rabbit hole