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project UPDATES
01-31-2018, 12:26 PM
Post: #3
RE: project UPDATES
[/quote]

Hi there, I wrote up a blog post http://robdobson.com/2018/01/not-so-droo...robot-arm/ about a SCARA I built a little while ago in case there is something there that might help you.
[/quote]

Hi Rob,
Thank you for this.We will take a deep look at your post. It has a lot of useful info and ideas.

On our side: We are still testing the control board.

The ARMBOT frame is almost finished. The stability of the robot and accuracy/speed compromise has been the most time consuming thing to "solve". We have had to re-locate the motors more than 5 times redesigning the whole arm. Working with a fully extended arm (with load) shifted its center of gravity 6 cms making the Z axis very inaccurate (+- 5 mm). Now, without load the center of gravity is located between the motors (-11mm from the XY "origin") and with a load of 250 grams it moves to +15mm, not compromising balance or precision.

This is the current status of the robotic arm frame: [Image: Armbot-Vertical-and-horizontal-CLAMPs.png]

Would you like to collaborate once the control electronics are completely functional? We can send you a prototype version if you want.
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Messages In This Thread
project UPDATES - JJrobots JP - 01-02-2018, 11:37 AM
RE: project UPDATES - robdobsn - 01-30-2018, 06:39 PM
RE: project UPDATES - JJrobots JP - 01-31-2018 12:26 PM
RE: project UPDATES - faurog - 11-30-2018, 03:11 PM
RE: project UPDATES - JJrobots JP - 12-01-2018, 05:21 PM
RE: project UPDATES - clocey - 02-09-2019, 08:46 PM
RE: project UPDATES - JJrobots JP - 02-11-2019, 02:15 PM
RE: project UPDATES - clocey - 02-11-2019, 06:32 PM
RE: project UPDATES - calvinbrice - 02-14-2019, 03:01 AM
RE: project UPDATES - clocey - 02-21-2019, 07:47 PM
RE: project UPDATES - JJrobots JP - 02-22-2019, 12:03 PM
RE: project UPDATES - clocey - 02-22-2019, 03:58 PM
RE: project UPDATES - JJrobots JP - 02-25-2019, 01:07 PM
RE: project UPDATES - clocey - 03-05-2019, 02:03 AM
RE: project UPDATES - JJrobots JP - 03-05-2019, 10:44 AM
RE: project UPDATES - clocey - 03-05-2019, 03:09 PM
RE: project UPDATES - clocey - 03-23-2019, 12:39 AM
RE: project UPDATES - clocey - 03-27-2019, 01:19 AM
RE: project UPDATES - JJrobots JP - 04-03-2019, 08:52 PM
RE: project UPDATES - clocey - 04-03-2019, 08:58 PM
RE: project UPDATES - Emily Simmons - 04-03-2019, 04:37 PM
RE: project UPDATES - tjkim93 - 06-07-2019, 06:35 AM
RE: project UPDATES - JJrobots JP - 06-07-2019, 12:53 PM
RE: project UPDATES - clocey - 06-26-2019, 11:38 PM
RE: project UPDATES - clocey - 07-17-2019, 02:29 AM
RE: project UPDATES - JJrobots JP - 07-17-2019, 11:00 AM
RE: project UPDATES - clocey - 07-23-2019, 04:51 PM
RE: project UPDATES - clocey - 08-31-2019, 01:19 AM
RE: project UPDATES - JJrobots JP - 08-31-2019, 12:27 PM
RE: project UPDATES - JJrobots JP - 09-23-2019, 12:10 PM
RE: project UPDATES - takiz73 - 10-03-2019, 04:50 PM
RE: project UPDATES - JJrobots JP - 10-04-2019, 08:23 AM
RE: project UPDATES - JJrobots JP - 10-04-2019, 08:40 AM

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