Designs by REDA

For Project: Robot Lawn Mower

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3rd Winner
#14 LadyBug by REDA
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May 29, 2015 15:37
#9 LadyBug Lawn Mower by REDA
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May 27, 2015 10:35
#11 LadyBug by REDA
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May 28, 2015 22:32
#15 LadyBug by REDA
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May 29, 2015 15:52
#3 LadyBug Lawn by REDA
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That is a Clipper Nice is exactly matched to your logo and it will certainly appreciate by users,
a ladybug is often popular with the view on a green lawn all .....
With a matching charging station so keep the spirit of nature
Best Regards
May 25, 2015 22:05
#18 LadyBug by REDA
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May 30, 2015 15:13
#8 Robot Top by REDA
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May 26, 2015 22:51




Wed, 03 Jun 2015 16:34:17 +0000
Thank you Jhon ,
Wed, 03 Jun 2015 16:31:11 +0000
Congratulations REDA, your design was innovative and I have selected it as third place. Could you please send me all source files as well as STEP versions?

As I mentioned, I would be interested in exploring some other ideas with you.



Fri, 29 May 2015 22:25:23 +0000
Ok jhon ,
Thank You,
Fri, 29 May 2015 22:22:16 +0000
The cameras see things before they go under the blade. To do this, they need to be at least 5 inches above the ground. They should look down at the ground. In front it should see forward and backwards 4 inches and left right to the wheels. In back, 2 inches will do. Is that clear?
Fri, 29 May 2015 16:56:04 +0000
I like this a lot.

1. Bottom of the robot is still cut out for larger wheels.
2. I like the base station. It is simple and elegant.
3. I like the cover. I would rather it be opaque. I would rather it go up instead of down.
4. I like the offset blade approach.

You are still missing the following requirements:
* When driving straight, the path of the grass cut by the blades should overlap between 0.25" and 0.5". (Consider smaller blades.)
* The deck should include 1" more diameter than the blade and should sit 0.5" off the ground. (Each blade should be surrounded by a deck for safety.)
* The deck may be adjusted up 3" until the top of the deck is 5" off the ground. (Need to see space is available.)
* A 1.5" diameter and 2.5" length motor will attach to the deck above each blade. (I think you have the motors in the wrong place. Each should be directly over the center of a blade.)
* There will be cameras mounted around the height of the top of the deck in front and in back. The front camera needs an unobstructed view of a 4" strip in front. The back needs a and 2" strip behind the robot. Ideally this space would be inside the frame. (See below.)

The cameras identify the edge of the grass and other obstacles. I envision them to be pointed directly down, but they could be raised a few degrees. They should be mounted at least 5" off the ground. Based on the speed of the robot, they need a clear view at least 4" in front so they don't miss anything in front of the robot. The camera in back is less critical, but should have a clear view of at least a 1" and a mildly obstructed view of 2". Ideally these cameras would not be visible from the top, but instead would be hooded by the frame.

Thu, 28 May 2015 23:51:02 +0000
This is definitely a step in the right direction.

Some comments:
1. You are missing the blade motors over the deck.
2. The caster should mount much closer to the wheel. I suggest the base includes a domed shape to completely enclose the top.
3. The blade motors each cut the same grass. Shouldn't one be shifted left and one right? Then you would cut almost 10" in a single pass instead of 5".
4. It would be nice to cover the lcd screen.
5. There is a large gap between the frame and the wheel. I assume this is because you made the wheel narrower, but could you expand the frame to fit?
6. The base station looks to big and bulky. Could you make it smaller or shorter? It also does not look very stable. Could you add a platform of some type under it?