Electrode work holding 3r vs Erowa

[Sticky]

Does anyone here have experience with both systems? It looks to me that the 3r system is a little more substantial, and would likely offer better repeatability.

[PAnderson]

I used to build molds for a living and we had both of these systems. In my opinion, there is no difference. Both are rock solid for machining and burning. Repeatability for both are/were in the microns as long as you treat them with respect just like any other precision tool.

 

Paul

[Sticky]

Does the Erowa really not have a provision for air blast on the contact surfaces? I am having a hard time seeing how you could have micron repeatability with edm grit on everything when doing an automatic electrode change.