Delta Robot with Three Arms
Description
You can buy this kit @ bit.ly/ZCeFUu
Video: youtube.com/v/7AchUoL9qdo
Scale model of a 3 armed delta robot, perfect for learning the basic math and programming challenges.
Instructions
Acquire three sets of pololu.com/catalog/product/733
Acquire three hobby servos. I used TowerPro SG5010.
Acquire an Arduino UNO or better.
Acquire a 9v1a power supply.
Acquire a small breadboard.
print one end effector, three bicep, and three mounting brackets. Printable parts are available @ marginallyclever.com
Assemble as in the photographs. Hot glue the servo horns onto the biceps.
Upload the code from the github project @ github.com/i-make-robots/Delta-Robot
Share your experience in our forums @ marginallyclever.com/forum/
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Great work. Your design with the three baseplate giving the perfect angle inspired me to resume my delta robot project. I haven't build it completely yet, but have printed the base (needed to file them a little bit for them to fit together, but not much), mounted the servos and made an improvement of the biceps (http://www.thingiverse.com/thi...
To be continued.... :-)
If you're looking for something to do, redesign the bicep I made so that the inset for the servo horn is on the "top". In the current model the inset creates a large overhang that some printers (including mine) have trouble with. I will bow to your model-fu if you can do it with less plastic.
First off, shame on you for beating me to this design. I have the exact ball joints and threaded rods sitting here on my desk waiting for me to finish printing a design I'd been working on. I guess I'll have to throw in with you now.
Second - some questions:
1. How do those servos stay put? I'm guessing friction right now, maybe even glued?
2. Can share some of your print settings for the photographed parts?
Shame? On ME? The only shame is that I made one out of aluminum (http://letsmakerobots.com/node... before I had a 3D printer.
1. The servos stay put because they're told to stay put. With no power the gear ratio is still so high that they don't move. If you mean the servo horns on the biceps... hot glue. I'll add it to the instructions.
2. What do you mean, print settings? Everyone's 3D printer is different. I used 0.4 infill, if that means anything. I had to file some of the base pieces to make them fit. There's an indent on the biceps meant to match the horns but the overhangs didn't print well at all. I need to redesign around this problem.
License
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The round hole looks perfect to use the RepMan toolhead mounting.
That would e.g. make it compatible with the existing Dremel milling head and the BfB extruders. (Can't hurt )