- Joined
- Jul 22, 2002
Used to have a decent watercooling setup... then I got out of overclocking for a short while, and stored the WB and such. Found the WB again today, but from the storage it looked like it had a few small dings and scrapes in the bottom, so I took it downstairs for a lapping session.
This is a DD Maze4 block. What scared me is that, when lapping, the block began to develop a ring of smooth material along the edge of the block and a progressively rougher look towards the center, which suggests that the block is starting to get a concave shape. I had run in to this problem when lapping ramsinks, but didn't figure on having the same issues with a CPU block, since it's so much larger and less likely to "roll."
So, I can only think of two explanations for the concave effect- that the block was shipped with a somewhat convex bottom (which is unlikely at best with DD), or the block is "rolling" as I sand it. I was making a conscious effort to prevent this, and I noticed no movement- the block felt like it was moving perfectly parallel with the sandpaper the whole time. The corners do appear to be somewhat rolled up, but the rest of the block looks flat.
Which of these is likely my case? Is it normal to have a slightly uneven block? Or, is it a common mistake to have the rolling problem? Any suggestions?
Any help appreciated
This is a DD Maze4 block. What scared me is that, when lapping, the block began to develop a ring of smooth material along the edge of the block and a progressively rougher look towards the center, which suggests that the block is starting to get a concave shape. I had run in to this problem when lapping ramsinks, but didn't figure on having the same issues with a CPU block, since it's so much larger and less likely to "roll."
So, I can only think of two explanations for the concave effect- that the block was shipped with a somewhat convex bottom (which is unlikely at best with DD), or the block is "rolling" as I sand it. I was making a conscious effort to prevent this, and I noticed no movement- the block felt like it was moving perfectly parallel with the sandpaper the whole time. The corners do appear to be somewhat rolled up, but the rest of the block looks flat.
Which of these is likely my case? Is it normal to have a slightly uneven block? Or, is it a common mistake to have the rolling problem? Any suggestions?
Any help appreciated