Author Topic: First attempt at a robotic arm! Suggestions for base?  (Read 813 times)

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Offline BciarenTopic starter

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First attempt at a robotic arm! Suggestions for base?
« on: July 03, 2013, 08:49:11 PM »
OK, so here's my base thus far!




Anyway, the problems I've been facing with this base is that it's all wobbly once I start attaching the arm!  People suggest I install rollers, but I don't have any idea how to actually do that!  I'm doing small scale here (1/8" thickness), any suggestions?  Or better yet, a direction?   

Offline nanotechopolis_gr

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Re: First attempt at a robotic arm! Suggestions for base?
« Reply #1 on: July 04, 2013, 01:26:18 AM »
you should install rollers because otherwise your arm it will not has balance , check out the shematics ( i am not good at paint  :P )
"On the 29th of May, the last day of the siege, our Lord God decided, to the sorrow of the Greeks, that He was willing for the city to fall on this day into the hands of Mahomet Bey the Turk son of Mu

Offline waltr

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Offline BciarenTopic starter

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Re: First attempt at a robotic arm! Suggestions for base?
« Reply #3 on: July 05, 2013, 07:16:59 PM »
Wow!  I am going to check that lazy susan bearing out!  Thanks!

Offline Fr0stAngel

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Re: First attempt at a robotic arm! Suggestions for base?
« Reply #4 on: July 07, 2013, 08:02:54 AM »
You could use a bigger servo horn... or perhaps a attach a support plate to the servo horn so it has more area under the base, and takes up force more evenly from the top
'crazy' is the new hype! =)

Offline Arduino02

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Re: First attempt at a robotic arm! Suggestions for base?
« Reply #5 on: July 09, 2013, 02:52:58 AM »
you need to add gaskets on legs and tops of all five screws, tie them up with nuts for both sides of board, cause area of thrust surface is too small.

also there is other option, there is a 6-dof robot arm chassis robot arm support turnplate for your reference, here is the link:
http://www.mhobbies.com/6-dof-robot-arm-chassis-robot-arm-support-turnplate.html

Offline BciarenTopic starter

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Re: First attempt at a robotic arm! Suggestions for base?
« Reply #6 on: July 12, 2013, 04:20:30 PM »
Thanks for the help guys!  I used a lazy Susan bearing and it worked out like a charm!



Now the next step is to put a gripper together!  Anyone know of any companies that deal in gears? I find myself having a difficult time finding 1" diameter 64 pitch gears anywhere in NYC!  NYC seems to be anti hobby really..

Offline jwatte

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Re: First attempt at a robotic arm! Suggestions for base?
« Reply #7 on: July 12, 2013, 11:30:45 PM »
Gears places:
sdi-sp.com
rapidgears.com
mcmaster.com

Or hob your own :-)

 


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