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Ar3 build southern california

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Avatar of corey brabant
(@corey-brabant)
Active Member
Joined: 3 months ago
Posts: 4
Topic starter  

hello AR people,

My name is corey i started in on my ar3 over our christams shut down.

i have some education in electronics and automation, I am a manufacturing engineer (fancy machinist) during the day. my specitalty is mill-turn centers and swiss style lathes up to 8 axis, although i do program and setup a 5 axis mill that the milling department hates.

 

Progress:

-Most of my hardware is in

-Motors are in

-My aluminum kit arives monday, i plan on tumbling them down to a matte finish and sending them out for annodizing. i realized after printing a few components and reworking them i was going to end up time and money ahead going the aluminum route.

- Covers are about half way printed, i was using the covers as a test on the makerbot i had at work that was non functional, after firmware and a few mdifications it is actually making some nice prints. now most of the prints will be feinshed out on my ender 3 pro

-Electronics- boards are in but i plan on using a larger enclosure, and integrating the cell controler, so i dont need a stand alone pc. Also i plan on using zip-port connectors rather than the aviation connectors so i will end up with 1 maybe 2 connectors on the robot. Also i havee been very impresesed with some of the main board concepts i have seen in the forums and may go that route but plan on conventional wiring to get going.

 

I am building this robot as an introduction into robot kinematics and a study in process automation, my first planned implementation is to automate a chamfering operation that involves chamfering a rectangular block on all 12 edges.

 

long term goals include using robots as machine tenders to pull parts from mills and lathes, also i have identified some assembly processes that could be automated.



   
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Avatar of corey brabant
(@corey-brabant)
Active Member
Joined: 3 months ago
Posts: 4
Topic starter  

Parts came back from plating today

https://anninrobotics.com/wp-content/uploads/2025/07/Ar3-build-southern-california.avif

They came out exactly how i wanted, matte black, well worth the $70

https://anninrobotics.com/wp-content/uploads/2025/07/Ar3-build-southern-california_2.avif

The J6 bearing cap was hiding in the tumbler and escaped plating, it will have to wait for the batch of parts being machined to go out

https://anninrobotics.com/wp-content/uploads/2025/07/Ar3-build-southern-california_3.avif

now to get the races out of the printed parts

https://anninrobotics.com/wp-content/uploads/2025/07/Ar3-build-southern-california_4.avif

little bummed they had to be destroyed to get the races out, body saw made quick work out of the plastic.

 

all my bearings ended up a slip fit, i put a little red loctite on them to retain them.



   
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Avatar of corey brabant
(@corey-brabant)
Active Member
Joined: 3 months ago
Posts: 4
Topic starter  

So i stayed late tuesday night and go all the parts deburred and tumbled

https://anninrobotics.com/wp-content/uploads/2025/07/Ar3-build-southern-california_5.avif

The tumbling evens out the machining marks,breaks all the edges,and gives the parts a more industrial appearance. They should be back from annodizing tomorrow

https://anninrobotics.com/wp-content/uploads/2025/07/Ar3-build-southern-california_6.avif

I did decide to hold back the J1 and J2 spindles, as well as as the small j5 parts. since they arent visible when assembled.

 

Looks like im building a robot this weekend



   
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Chris Annin
(@chris-annin)
Member Admin
Joined: 3 months ago
Posts: 538
 

Your build sound very interesting, looking forward to seeing how the anodizing turns out as well as the integrated PC. Keep us posted. thank you.



   
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