- Joined
- Aug 6, 2003
- Location
- ---> NEW HOUSE 7/17/09 !! <---
this is a PM i sent to Cathar:
so today i got the G5 and just for grins & giggles, i put a straight edge on it....ummm....
@ this angle every thing is GREAT:
BUT then we move to the other....
i am NOT going to post these on the forum until we "talk"...
please give me your input!!
@ a loss for words,
(aka Joe Camel)
PS this is the same straight edge/test/light source etc etc as in this thread LINK .
.
so today i got the G5 and just for grins & giggles, i put a straight edge on it....ummm....
@ this angle every thing is GREAT:
BUT then we move to the other....
i am NOT going to post these on the forum until we "talk"...
please give me your input!!
@ a loss for words,
(aka Joe Camel)
PS this is the same straight edge/test/light source etc etc as in this thread LINK .
Cathar said:What can I say? Not very good is it?
Something I noticed with a few of the blocks is that came back slightly curved from lapping, and again, once assembled also gained a small amount of curvature. I had to re-lap a number of blocks by hand.
If you could just do a quick test for me and see if the base is still like that when the block is disassembled (base-plate by itself).
Due to the softness of the silver it seems that with manufacturing variances in the O-ring channel depth that some O-rings squished a little too much upon assembly and caused the warping which you can see. Looks rather dramatic with a straight edge, but is probably about 50 microns in "bow" from edge to edge.
Disassemble the block and redo the test. If the plate is fine after you do that, then this is an assembly issue and can be fixed by some lapping with 600-grit paper with the block assembled.
I tried to catch all these but I had someone helping me who was assembling and packing blocks and let some slip through. The other possibility is that this is heat related, and again, disassembly and reassembling in your local environment may improve things.
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