Show HN: A high-speed laser camera trigger for under $2

#1

Post by ascorbic » Fri, Jul 18, 2014, 2:19 PM UTC

Show HN: A high-speed laser camera trigger for under $2
vela.io

Re: Show HN: A high-speed laser camera trigger for under $2

#2

Post by bnejad » Fri, Jul 18, 2014, 5:09 PM UTC

This is an awesome post, I love seeing these kind of projects. The money shot at the end with the BB is very cool. Nice job!

Re: Show HN: A high-speed laser camera trigger for under $2

#3

Post by joe_bleau » Fri, Jul 18, 2014, 7:39 PM UTC

$2 sounds really cheap--did I miss the laser on the bill of materials?

Anyone else hoping for a modern and inexpensive replacement for the legendary classic EG&G microflash?

Re: Show HN: A high-speed laser camera trigger for under $2

#4

Post by erichocean » Fri, Jul 18, 2014, 7:41 PM UTC

This post completely sums up what makes HN great.

Re: Show HN: A high-speed laser camera trigger for under $2

#5

Post by erichocean » Fri, Jul 18, 2014, 7:41 PM UTC

joe_bleau wrote: post #3

$2 sounds really cheap--did I miss the laser on the bill of materials? Anyone else hoping for a modern and inexpensive replacement for the legendary classic EG&G microflash?

He said explicitly he's excluding it (and a few other things).

Re: Show HN: A high-speed laser camera trigger for under $2

#6

Post by sp332 » Fri, Jul 18, 2014, 8:08 PM UTC

joe_bleau wrote: post #3

$2 sounds really cheap--did I miss the laser on the bill of materials? Anyone else hoping for a modern and inexpensive replacement for the legendary classic EG&G microflash?

I picked up a 1 mW pointer for £1.98 on eBay. That's about $3.38 USD.

Re: Show HN: A high-speed laser camera trigger for under $2

#7

Post by laxatives » Fri, Jul 18, 2014, 8:19 PM UTC

Did something very similar for a final project in a physics/electronics course.

https://www.dropbox.com/s/ox5wxmnhzg045b4/Final.pdf

Re: Show HN: A high-speed laser camera trigger for under $2

#8

Post by omegant » Fri, Jul 18, 2014, 8:27 PM UTC

erichocean wrote: post #4

This post completely sums up what makes HN great.

Find that lately there are less of this kind of Hacking articles and those talking about interesting and inusual things, and much more about New frameworks or libraries.

Re: Show HN: A high-speed laser camera trigger for under $2

#9

Post by mcpherrinm » Fri, Jul 18, 2014, 9:02 PM UTC

joe_bleau wrote: post #3

$2 sounds really cheap--did I miss the laser on the bill of materials? Anyone else hoping for a modern and inexpensive replacement for the legendary classic EG&G microflash?

I'm sure I've bought laser pointers at Dollarama before (for $1 CAD) and those included batteries: Even if the total BOM is $3, it's still pretty cheap.

Re: Show HN: A high-speed laser camera trigger for under $2

#10

Post by aceperry » Fri, Jul 18, 2014, 9:40 PM UTC

laxatives wrote: post #7

Did something very similar for a final project in a physics/electronics course. https://www.dropbox.com/s/ox5wxmnhzg045b4/Final.pdf

Nice pics!