@Amitabh Shrivastava for joining us on today's chat. Why don't you start us off by telling us a little about yourself?
Speaking of which, let's get this Hack Chat started! A BIG welcome to
Welcome @Amitabh Shrivastava ! :-)
Thanks @Boian Mitov! By the way, love your acoustic levitation project!!
Thank you @Amitabh Shrivastava :-)
So, I'm a grad student at ITP, NYU
I like to make stuff, electronics, fabrication..
I studied physics and biology in undergrad, but quickly realized that I prefer just making things
So I became the engineering consultant for the ecology department
Made a windtunnel, and a sensor for measuring elephant height
Then moved to startups and worked on wearable gaming
Now, at NYU I'm working on embedding sensors in concrete and soft robotics!
I really enjoy making tools that others can use to make cool stuff
Shall I speak a bit about Programmable-Air?
We already have some great questions from the community, especially @Jarrett , so let's get started!
Let's do a few community questions then dive into programmable air. I'm really excited to hear about it.
First question(s) from @Jarrett : What kind of pumps do you like to use?
Have any preference for small / lightweight / cheap ones?
Yeah that's a great question
In pneumatics, as in all of engineering there's tradeoffs with size, cost and quality
I wanted to go for something that can generate pressures in the range that humans can generate with their mouth and about the same flow rate
After a lot of testing I settled on these pumps:
Micro air pump Electric pumps mini vacuum pump pumping Booster For Medical Rated voltage: DC12V Rated current: Air flow without load: 3.2LPM Max. vacuum: Noise: Life test: >500 Hours Note: Welcome to wholesale ...,we offer you more competitive wholesale price . Package included: 1 pc Micro air pump
Read this on Amazon
Similar pumps are available for 5$ a pop and they can do 2L/min flow rate and + - 8 PSI
If you don't know what you need, these are a good place to start
Let's round out that series of questions with their next one: Realistically, how much weight do you expect small portable pumps to be able to lift?
Hmm, it really depends on the actuator attached to the pump
Let's look at the math
You can generate -8 PSI
So, if you have a one square inch surface area, you can lift 8 pounds.
I can totally imagine lifting 100 pounds with this pump with a good o-ring seal
Have you considered small cans of compressed air (like airsoft cannisters)?
If so, how would controlling airflow work?
Hmm, so compressed air cans are much higher pressure range
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