Author Topic: How to overcome the despair of having crunched the numbers?  (Read 3579 times)

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Offline Artlav

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How to overcome the despair of having crunched the numbers?
« on: October 07, 2015, 04:08:14 pm »
One day you come up with a neat idea.
You do the math and simulate, and it sounds even better.
You look up the parts, run the tests, find the cheapest of what works, and it looks more than doable.

Anticipating the result, you start to crunch the numbers.

A thousand dollars for the PCBs...
A little under a thousand dollars worth of analog parts......
Several thousand dollars for the signal processing parts.........
Don't even want to count the digital parts by this point, even though they should be cheap.

Desperation.
It can't be done, it can't!

...Now what?
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Offline Artlav

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Re: How to overcome the despair of having crunched the numbers?
« Reply #1 on: October 07, 2015, 04:27:57 pm »
Eh, if it was something to make a profit from, then there won't be time left for despair.

But when it's a one-off art project for your own fun...
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Offline Delta

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Re: How to overcome the despair of having crunched the numbers?
« Reply #2 on: October 07, 2015, 07:31:07 pm »
Take it as an expensive way to learn that you should always actually build something before shelling out any money.

I understand that simulations are the way forward, and that breadboards are seen as a bit rough, but STICK SOME PARTS TOGETHER RATHER THAN  TRUST LTSPICE!
 

Offline Kjelt

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Re: How to overcome the despair of having crunched the numbers?
« Reply #3 on: October 07, 2015, 07:37:03 pm »
But when it's a one-off art project for your own fun...
You sell it on forehand to an art collector for the amount of money you can make two one for him one for yourself.
 

Offline Bud

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Re: How to overcome the despair of having crunched the numbers?
« Reply #4 on: October 07, 2015, 07:37:27 pm »
What is that you want to build for personal enjoyment that cost thousands $ in PCBs and even more in parts?
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Offline krivx

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Re: How to overcome the despair of having crunched the numbers?
« Reply #5 on: October 07, 2015, 08:17:02 pm »
What is that you want to build for personal enjoyment that cost thousands $ in PCBs and even more in parts?

Yeah I'm having trouble picturing the $1000 PCB that has no economic value. The thread feels like you're fishing anyway, spill it
 

Offline German_EE

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Re: How to overcome the despair of having crunched the numbers?
« Reply #6 on: October 07, 2015, 08:49:11 pm »
My home made ham radio transceiver has cost me about 3000 Euro to build and I'm still not happy with it, for the same price I could have bought a commercial rig and sat there in front of the plastic panel turning knobs.

Not a chance

I enjoy building stuff.
Should you find yourself in a chronically leaking boat, energy devoted to changing vessels is likely to be more productive than energy devoted to patching leaks.

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Offline Artlav

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Re: How to overcome the despair of having crunched the numbers?
« Reply #7 on: October 07, 2015, 09:14:39 pm »
Take it as an expensive way to learn that you should always actually build something before shelling out any money.
Fortunately, i haven't bought anything yet in any noticeable quantity.

Yeah I'm having trouble picturing the $1000 PCB that has no economic value.
4 layer board, 25.6x25.6 cm, 20 of them.
They are $30 apiece, with $200-something tooling cost and $60-something shipping, which adds up to a lot.
I can halve the price if i manage to fit everything in two layers, which i haven't contemplated yet.

The thread feels like you're fishing anyway, spill it
Not exactly, more like "didn't check if the brain was in gear before posting" kind of thread.

Without going into too many details, contemplate this question:
What if you could see sound?

Here is some tone generators of different pitch flapping around 3 meters away from a 51.2x51.2 cm microphone array.
Guess what would cost so much...
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Offline Galenbo

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Re: How to overcome the despair of having crunched the numbers?
« Reply #8 on: October 08, 2015, 12:35:58 am »
Eh, if it was something to make a profit from, then there won't be time left for despair.

But when it's a one-off art project for your own fun...
So what? Just do it.
Other people start building a racecar for 3000 euro, and end up spending 30.000
If you try and take a cat apart to see how it works, the first thing you have on your hands is a nonworking cat.
 

Offline SteveLy

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Re: How to overcome the despair of having crunched the numbers?
« Reply #9 on: October 08, 2015, 06:43:38 am »
Sound/audio visualisation can and has been done in vast number of different ways from super cheap to super expensive. Research what others have done and if you still reckon you have an original idea worth exploring implement it in a way that's compatible with your budget constraints.
 


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