Aluminium robot arm.

krolikbest · Joined: 02 Jan 2017 Posts: 69

Hi,

there is no questions. Want to show my latest project, still in progress:

https://www.youtube.com/watch?v=suFuSS_XOX4

Arduinos are working with Bascom code.

Regards,

Martin

albertsm · Joined: 09 Apr 2004 Posts: 5060 Location: Holland

Looks like a real robot arm. I mean not a small desk one. what are the plans for the arm when it is finished?

krolikbest · Joined: 02 Jan 2017 Posts: 69

Exactly. I'm going to use it in production proces like " take, move, put".
It's significant difference between making a toy on the desk using modelling servos and using industrial stepper/servos... and in spite of
long TODO list, slowly getting closer Smile

And thank you for nice comment:)

albertsm · Joined: 09 Apr 2004 Posts: 5060 Location: Holland

I will follow the project Very Happy

krolikbest · Joined: 02 Jan 2017 Posts: 69

Next step - with arms. still a lot to do... but it develops.
https://www.youtube.com/watch?v=nW0IslMvxqQ

six1 · Joined: 27 Feb 2009 Posts: 552

Looks Good Laughing

But i think, you have to slow down speed, if you reach the endpoint

krolikbest · Joined: 02 Jan 2017 Posts: 69

I know. This is caused by too small transmission ratio. I don't want to change setup of timer1 which is my square wave generator. Servos should work as fast as possible (to avoid jittering), transmission ratio e.g. 1:20 would fit my needs the best. Unfortunatelly have 1:6 and changing microstepping (greater) also isn't good solution for so small transmission ratio since stepper have too weak holding position capability. Currently I'm working on changing this ratio.