January 18, 2019, 03:46:40 AM
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 Robot type choosing


Author Topic:  Robot type choosing  (Read 355 times)

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November 20, 2018, 09:42:01 AM
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oconnell


Hi,
I have a project going on, and I would like some advice on what to choose.
We have to design a robot capable of transporting 500 gram, 20 cm sideded parallelepipeds. The work area is 1m x 1m.
I have been thinking of SCARA, Delta and Cartesian.
Can you give me your opinions and pros and cons in this situation?
I would appreciate it very much.
Regards

Linkback: https://www.robot-forum.com/robotforum/index.php?topic=29678.0
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Today at 03:46:40 AM
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November 20, 2018, 03:13:25 PM
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SkyeFire

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Well, what are your priorities?  Accuracy?  Speed?  Do you need to move only in XYZ,

Cartesian is definitely the simplest, especially if you use a gantry model, like most 3D printers.  Can be rather bulky, since the robot has to surround the entire work volume.

Deltas are fast, but can be tricky to calibrate, and tend to have "elbows" that stick out quite a bit.  Making one with a 1m by 1m reach (plus how much vertical?) could be an issue.  Also very mechanically finicky.

SCARAs are nice, but getting the links rigid enough, especially at full reach, can be a real mechanical design issue.  Doable, but not easy.  Plus, with the serial nature of the links, you can have some vibration issues.
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November 22, 2018, 03:36:53 PM
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IsaacMaw


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