Optics

Archive for the ‘Optics’ Category

Belated 2012 Transit of Venus report

Sun projection with Venus shadow at 19:20:51 EST

Sun projection with Venus shadow at 19:20:51 EST

Although most of the posts you see on this blog are about electronics, hence the name: Elabz, I can’t resist the urge to post about of my other hobbies here. I haven’t done it before in all of the three year history of this blog but from this point onward my visitors are going to have to endure a non-electronics post every once in a while.

Astronomy is one of those not-yet-covered-here hobbies of mine and one of the rarest, easy to observe and just overall interesting astronomy events has just happened recently – the June 5, 2012 Transit of Venus. Since I had a camera handy, I had to snap some pictures and brag about it here :) It was the very first time I saw an image of the Sun projected through optics and it was a rather illuminating experience, pun totally intended. Read the rest of this entry »

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Recent Comments
  • CHAARI: need an eagle file for the control of a stepper motor with easy drive or a microstepping driver
  • admin: Awesome! Thank you very much for sharing, Dani!
  • Dani: Here is my version, not perfect but I learned a lot. http://youtu.be/yrOzLo7bk_E
  • Dani: Thanks for your reply! :)
  • Andreas Carmblad: Thanks for answer :) I use easydriver yes. The problem is solved though. I thought I was supposed...
  • admin: Hi Andreas, You did not specify which stepper motor controller you are using and it is an important bit of...
  • Andreas Carmblad: I would really need some help with this. I can’t get it to work. The axel of the motor is...
  • jordan: whoops just realised the error in my previous post, 250mW is the output but has nothing to do with the input...
  • jordan: hi, i managed to get my hands on two laser diodes and was a little too eager with the first one (it blew out)...
  • admin: I think you are correct, LinuxCNC should be able to control it using a more widely available CNC servo...
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