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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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Stewart Platform Hexapod / Parallel Kinematics based cnc machines in the U.S.
The dialog about open source cnc hard/soft ware was very
informative. What feedback/information does the group have on the Stewart Platform Hexapod / Parallel Kinematics based cnc machines? With the recent boosts in computer power/speed it appears these are becoming practical for a number of applications, although an automatic tool changer may be a challenge. It appears these intrinsically have 6-axis capability, the three traditional [XYZ] orthogonal axis and limited rotations [ABC] about these. This design appears to eliminate the need for large castings/weldments, and the extremely high hand precision [i.e. expensive] grinding/scraping typical of traditional way type cnc machine tools. It also appears to make transportation and setup much easier/cheaper because of their much lighter weight. Is anyone using one of these in a production environment? How is the programming compared to the traditional machines? Given the amount/complexity of the actual position code I can see why a pre-compiled tool path would be required. I found a bunch of sites on google - a few that caught my eye we Retrofits: http://www.mmsonline.com/articles/0900rt1.html http://www.mmsonline.com/articles/0204rt1.html New US manufacturer [ I would love to have one of these in my garage, but 60k$US is a little steep ] http://home.wi.rr.com/pathfind/ Uncle George |
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