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Aluminium robot arm.

 
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krolikbest

Bascom Member



Joined: 02 Jan 2017
Posts: 45

PostPosted: Mon Mar 04, 2019 6:30 pm    Post subject: Aluminium robot arm. Reply with quote

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
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albertsm

Administrator



Joined: 09 Apr 2004
Posts: 4736
Location: Holland

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PostPosted: Mon Mar 04, 2019 7:43 pm    Post subject: Reply with quote

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

Bascom Member



Joined: 02 Jan 2017
Posts: 45

PostPosted: Mon Mar 04, 2019 8:15 pm    Post subject: Reply with quote

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:)
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albertsm

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Joined: 09 Apr 2004
Posts: 4736
Location: Holland

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PostPosted: Mon Mar 04, 2019 10:09 pm    Post subject: Reply with quote

I will follow the project Very Happy
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krolikbest

Bascom Member



Joined: 02 Jan 2017
Posts: 45

PostPosted: Wed Jun 12, 2019 8:25 pm    Post subject: Reply with quote

Next step - with arms. still a lot to do... but it develops.
https://www.youtube.com/watch?v=nW0IslMvxqQ
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six1

Bascom Expert



Joined: 27 Feb 2009
Posts: 523

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PostPosted: Thu Jun 13, 2019 6:48 am    Post subject: Reply with quote

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

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krolikbest

Bascom Member



Joined: 02 Jan 2017
Posts: 45

PostPosted: Fri Jun 14, 2019 10:12 pm    Post subject: Reply with quote

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.
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