Mini servo gripper

by jjshortcut, published

Mini servo gripper by jjshortcut Apr 20, 2010

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A gripper compatible with a mini servo I used the Topline ES-05 JR, I milled it with a 3-axis cnc machine but its also printable. Made of 4mm hardboard.

A little video:

For more pictures and info:


To assemble the gripper you use m3 nuts and bolts. For the gripper parts you use nylock nuts so the gripper wont come loose. For more grip use some kind of soft foam which you glue on the grip parts with super glue. For connecting the horn of the servo to the right gear part use some small screws, like 2mm.

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Are there any detailed or step by step instructions on how to build/assemble this? Thanks.


I am just wondering, would be better, if you'd use another support for non-motor gear on the bottom connecting to the branch that holds item?


i want make a

Mini servo gripper

But I do not know its size
And I do not know that I should make
Please help me

Hi thanks,
Used Vectric's Aspire


whatisacnc dot com

Thank you!

I used Vectric Aspire and it turned out great.

Hello I was wondering how to download the stl files?

Done! Cut on CNC from 4 mm MDF, works great.Thanks.

can u give me the plan of that robotic arm plzz

please check on my account.


Great job. Two questions. When I open the .dxf file in Autocad the scale is way off, by almost a factor of 10. Anything I can do about that?

Secondly, most of the servos I use have 4 mounting holes, the ones used in your diagram seem to only have two. What servos are you using?


The servos on the gripper are mini seros which have only 2 monting holes. And the dxf file is made in mm, maybe u use inches?

No still no luck....Inventor Pro 2012 seems to think your mm demensions are actually inches. I'll keep trying. But if you have the Solidwork files I can import them into I Pro. Thanks for your reply.

I'm not sure if this was covered anywhere but I was hoping you could tell me the thickness of the material. :]

Thanks in advance.

Perfect for my uranium enrichment plant! Er, I mean, my science project...

Made of 4mm hardboard.

Here are two videos showing my 3d printed version of this arm. One on a robot, another on its own. Both controlled with a Chronos watch.


Thanks for a cool robot arm!

Great build! I especially like the controlling with teh Chronos watch.

jjshortcut, it seems we made it onto engadget. That one is yours also! I didn't quite realize it was cool enough for that. I am a bit embarrassed so I have to come up with something really impressive now...


Hi Larsie,

Yesterday I also saw it on HackADay, really cool what you've made!

I like this idea of thingiverse users helping others to make cool things/robots, really open-source! :)

I'm confused about the license. You have it set to None (All Rights Reserved) but you don't seem to be adverse to people making a copy. Am I just unfamiliar with the way these licences work or what?

Probably I'm unfamiliar with these license, I like to see people make it and I didn't paid attention to the license, I set it to Public Domain but I'm not sure what all those licenses mean.

Ah, no problems. I just wasn't sure what you had intended. Public Domain just means that anybody can build it, modify it, use it however they see fit.

Thanks for clarifying. I want to build one. It looks pretty sweet. Great work.


I'm looking forward to see your gripper :)

This is amazing and Im going to add it on to an omni-bot I plan to make soon. can you please also supply the .dxf files

There you go! remember it is 4mm thick ;)

ahhh thank you :]