Hi,

Id' like to share my techtar-project with you. I've just made a new video showing one of it's main features: the ability to play itself:)
http://frankpiesik.info/2014/07/20/techtar-diary3/

greetings,
frank

Very impressive work!!
Open hardware & software: thank you!

For those who are too lazy to click on the link here's the last video (there's 2 other);

Keep us informed,
Cheers

Yeah!
How did you build the actuator that moves the strings? Electromagnetic coils ? and how do you drive them?
This would be great on a Zither also.

lg
Jens

Amazing!!! This is really great work!

Congratulations! Very well done

Thanks for your nice comments:)

@EEight Thanks for linking the video. yes, I'll keep you informed.

@royal_orchestra Yes, I use mosefet driven coils. One of my next videos will probably
be about how to build the kickup. Here is a picture of a single kickup-actuator:
http://frankpiesik.files.wordpress.com/2014/03/dsc06068-e1395006709850.jpg
The 3d-printable files are here:
https://github.com/Piesi/Techtar/tree/master/printed/actuators/Kickup

Here is a flow chart of the techtar showing the components involved :
http://frankpiesik.files.wordpress.com/2014/03/flowchart4.png

Wonderful project! I'd be interested in building a kickup! Any more on the next video? All the best.