Posts by mcardoso

Been a few months, but I finally pieced together a complete system and was successful in getting it running!

I'm logging my project at the link below, feel free to check it out and follow along:

https://www.hobby-machinist.co…-articulated-robot.97888/

Part 6

Part 5

Part 4

Part 3

Part 2

Attaching the Owner's Manual B: Programming in 6 parts to get under the Robot Forum file size limit.

Part 6

Part 5

Part 4

Part 3

Part 2

Attaching the Owner's Manual A: Operation, Installation, and Maintenance in 6 parts to get under the Robot Forum file size limit.

Hi All,

I managed to get my hands on a Denso VS-6354CM, RC3-V6A controller, and teach pendant for less than $400 from an industrial surplus supplier. It has the normal issues (dead encoder batteries, dead controller battery, missing cables, setc.) but I'm making great progress forward. The J6 motor was fragged, but I found an original replacement on eBay relatively cheaply. I've also been able to purchase the full set of cables (including the IO cables) with the exception of the motor power and teach pendant cables, but I found the correct connectors, bulk cable, and pinouts to make my own.

My main challenge now is getting the parameter set to restore the controller. I have a lead on this, so I'm really hoping it pans out. I do not have the floppy drive so I am not sure how exactly the restore will work. Maybe the values can be keyed in from the teach pendant, or perhaps I can make a generic floppy drive talk with this unit. I have a backup option to convert the entire system over to Allen Bradley servo drives and PLC to do robot kinematics.

I wanted to start this thread as a place to ask questions if I get stuck and to share manuals. Denso support has been extremely kind to me and is providing a lot of information and help, even though this robot is out of service.

Attached the service manual to this post.

Did you ever find this grease? I bought a DENSO robot for hobby use and need to clean and re-grease the gearboxes. I am not sure what is equivalent since this is hard to find.

Well I figured it would take me months to get all the information I needed to run this thing and I am nearly there after one week!

Missing a few motor parameters that I am trying to get from Yaskawa and I should be in business to get the motors added to Studio 5000 and running on my drives.

Found a lot of information and I am recording my progress through this project in the link below:

https://www.hobby-machinist.co…s/mikes-scara-robot.84001

Hi All,

I have been interested in industrial robots for a number of years now and happened across an old Seiko TT8800 SCARA robot (ca. 1999) at an awesome price. It is fairly large and seems to be in great condition.

The robot did not come with a controller so I will be hooking it up to 3rd party servo drives and an AB PLC to do the kinematic transformations (feature is built into AB PLCs). The biggest challenges I see are going to be interfacing to the servo motors and encoders (I do not know yet what the feedback type is), figuring out the link lengths (a manual would be ideal here or I can disassemble and probe on my CNC), and figuring out wiring schematics. I do industrial controls with a focus on motion control for work, so I don't feel totally out of my league here.

I bought it fully expecting to just figure it out as I go (that sounds like a ton of fun to me), but I wanted to ask if anyone has any experience with these robots. I have contacted Seiko Instruments and Epson to try to get manuals but haven't gotten a response yet. Seiko sold their robotics business to Epson in 2001.

I don't have a purpose for it at this time, however down the road I could turn it into a large format 3D printer or a tool changer on my milling machine. I mostly wanted a fun project and it was pretty cheap.

Thanks in advance for any help or information!

The hard thing with the monster sized robots is you could never use them at home. You'd need a special concrete pour to handle the moment loading from the arm. I wish though:(

That is one nice robot.