"Michael A. Terrell" wrote:

"Paul Hovnanian P.E." wrote:

Michael A. Terrell wrote:


http://www.ebay.com/itm/351193599577

Maybe. But that big mess of linkages will inevitably* introduce some slop
into the tool position. I'd rather move the actuator out onto the arm near
the joint that it is controlling.

*Unless you spend a bundle on high quality ball joints.

Half the fun is finding a better way to do the job.

Real industrial robots of all shapes and sizes seem to show up surplus
fairly regularly. They will of course provide much better precision and
rigidity than something like the toy noted.