| Gallery, Projects and General > Neat Stuff |
| 5 axis mill |
| << < (2/2) |
| Lew_Merrick_PE:
--- Quote from: Bernd on March 15, 2011, 05:37:11 PM ---That's how I found the Hexapod. I remember a freind talking about it at work. He saw it a tool trade show. I didn't think of the table top mill untill I posted the message, then didn't feel like going back to searching again. --- End quote --- The "issue" is stiffness. While I don't disagree that the hexapod approach is (mathematically, at least) interesting, their cost for capacity is much larger than conventional 6-axis milling machines and their stiffness is really not that much better. The Sundstrand Series-80/6 is at least as capable for about 40% the capital outlay -- assuming that Sundstrand ever fixed their resolver-feedback issues. I was doing R&D for DoE and DoD on such beasties in 1984. I don't believe I was a functionally worthwhile hexapod until (about) 1990. I did think that it was interesting that G&L is using the (1983-84 development) active inferometer we developed for aligning AWACS antenna system at Grumman and Boeing (NBS development contract). I will argue that G&L overplayed the tooling/fixture issue in their advert. The issues are (as always) holding the part securely and allowing the cutter to access it. That does not change between "conventional" and "hexapod" cutting operations. |
| Navigation |
| Message Index |
| Previous page |