Post Reply 
 
Thread Rating:
  • 0 Votes - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
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.
Visit this user's website Find all posts by this user
Quote this message in a reply
Post Reply 


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

Forum Jump:


User(s) browsing this thread: 1 Guest(s)