I wasn't sure I could machine the J4 timing hub but I gave it a shot anyway. The timing belt does engage but seems to slip because the teeth are too s...

And finally a lot of assembly to get to this stage where the ARM, J2 and J3 are pretty much done

Today J5 housing - pretty intensive machining (7 operations total) but result looks all right

And now 2 parts for J5: the belt carrier and the tension block Only 6 parts left to machine !

And one more part (J6 Main bearing arm) and a bit of assembly for tonight With this done I'm left with 3 parts to machine and about 86% completio...

And here are 2 more parts : J6 housing - I machined it on the CNC exclusively (6 ops) and no lathe - a bit unconventional but it sort of worked...

Just for fun - here are the parts that didn't made the cut.... From left right: check the orientation of your part when you flip it for OP2...

This WE I was able to work on the assembly with all mechanical joints completed Soldering of motors is also completed, along with limit switches...

And with the final wire soldered this is the time to close the box... With this (and the missing gripper) the arm portion is now complete - I was...

Today I received the gripper so I proceeded the mill the LAST part of the build: the gripper holder

Before After Now I just need to teach AR3 how to clean ... :)

I was able to complete the wiring, the programing and the first tests, there are good and bad news: J1 skips, I have about +/- 10 degrees of...

Hi, In order to machine these parts all you need are the STEP files that Chris is selling on this site. I converted these files to Fusion 360 an...

Great build - thanks for sharing, I too am building the robot in aluminum and my setups and fixture are very different - I learned a lot from your exp...