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Katianie
Posts: 44
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Good Robot Arm and/or Hand.

Thu Nov 23, 2017 8:25 am

I've been looking on amazon for diffrent robot arms like this:

https://www.amazon.com/dp/B074T8SKVR/

or this:

https://www.amazon.com/dp/B01FM0KKCA/

But they all have terrible reviews, none of them on amazon are above 2.5stars. Any thoughts?

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OutoftheBOTS
Posts: 660
Joined: Tue Aug 01, 2017 10:06 am

Re: Good Robot Arm and/or Hand.

Thu Nov 23, 2017 8:30 am

You might think about building your own :) it will be fun

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Katianie
Posts: 44
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Re: Good Robot Arm and/or Hand.

Fri Nov 24, 2017 1:05 am

No, I'd rather buy a good one. I have the money for a good one if one exists.

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Katianie
Posts: 44
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Re: Good Robot Arm and/or Hand.

Wed Dec 13, 2017 9:01 pm

Bump

Chris D
Posts: 69
Joined: Tue Sep 20, 2016 11:27 am

Re: Good Robot Arm and/or Hand.

Fri Dec 15, 2017 4:29 pm

Hi,

I have not seen anything readily available on the market that I would say is good.

However, if you have or know someone with a 3D printer, there are a number of very impressive designs on Thingiverse. Of course it would require a substantial amount of work to get it working, but those are about the best I have seen. In a small desktop size range, there isn't going to be anything I would consider really good as in high precision, accurate motion, repeatable motion, etc. These size robot arms run on small R/C servo motors which due to their intended purpose do not have very high resolution.

Chris D

gjs31
Posts: 19
Joined: Sat Nov 04, 2017 2:42 am

Re: Good Robot Arm and/or Hand.

Sat Dec 16, 2017 6:07 am

I'm looking at getting one of these: https://www.littlebirdelectronics.com.a ... controller for a rover I'm slowly working on.

Any thoughts on whether it would be possible to remove the arm from the setup and drive it off a servo board? I had a quick look at one in store and from what I can tell its just a simple set of servos driving it.

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Katianie
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Re: Good Robot Arm and/or Hand.

Sun Dec 17, 2017 7:02 am

gjs31 wrote:
Sat Dec 16, 2017 6:07 am
I'm looking at getting one of these: https://www.littlebirdelectronics.com.a ... controller for a rover I'm slowly working on.

Any thoughts on whether it would be possible to remove the arm from the setup and drive it off a servo board? I had a quick look at one in store and from what I can tell its just a simple set of servos driving it.
Yea that one looks good and sturdy. I'd like to know if it is possible too.

gjs31
Posts: 19
Joined: Sat Nov 04, 2017 2:42 am

Re: Good Robot Arm and/or Hand.

Tue Dec 19, 2017 8:56 am

I found it in a store and it looks like the joints are driven by dc motors. Wouldn’t even know where to start controlling with those as opposed to servos.

hippy
Posts: 3786
Joined: Fri Sep 09, 2011 10:34 pm
Location: UK

Re: Good Robot Arm and/or Hand.

Tue Dec 19, 2017 7:27 pm

Katianie wrote:
Sun Dec 17, 2017 7:02 am
gjs31 wrote:
Sat Dec 16, 2017 6:07 am
I'm looking at getting one of these: https://www.littlebirdelectronics.com.a ... controller for a rover I'm slowly working on.
Yea that one looks good and sturdy.
I wouldn't bet on it. Most reviews I have seen describe thesetype of arms as "toys" though they likely have some utility. It seems Maplins in the UK are currently selling them discounted at £30 ...

https://www.maplin.co.uk/p/usb-controll ... -kit-a37jn

I had a play with a similar version which was manually controlled, perhaps a bit smaller than that, and it was extremely 'wobbly' in construction.
Katianie wrote:
Fri Nov 24, 2017 1:05 am
I have the money for a good one if one exists.
What exactly is your budget ?

I would guess this is one case where it is likely the more you pay the better quality one gets -

https://www.robotshop.com/uk/robotic-arms.html

asandford
Posts: 1999
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Location: Waterlooville

Re: Good Robot Arm and/or Hand.

Wed Dec 20, 2017 12:53 am

Katianie wrote:
Fri Nov 24, 2017 1:05 am
No, I'd rather buy a good one. I have the money for a good one if one exists.
Apparently good one, but not in my budget to test.

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