First Lapping

[Tazman]

What do y'all think of my first lapping job?

The reason for the lapping is evident in the first pic (crushed an 1800 ).

Mike

[Tazman]

And after some 3 hours (or more?) of sanding...........

[Telexen]

circles are actually bad...but that second pic looks GREAT. What kind of polish did you use on it?

[jkrohn]

Holy crap. I saw the second one and went "He posted the wrong pic, he posted a pic of the camera".

I then smacked myself.
Great job. Did you do that by hand or with a rotary tool.

Jkrohn

[woodbutcher]

Holy crap. I saw the second one and went "He posted the wrong pic, he posted a pic of the camera".


Same here, must have used 1000 grit wet or dry on that finish.
I never saw a HS with a mirror finish!

WB

[Telexen]

Hell I start laps with 1000 grit...20 minutes with 2000 grit will do great

To get it that clean though polish is needed. (I use cheap Brass-O stuff)

[Tazman]

The polish (and now I SWEAR by it) was Mothers.

Yep, did it all by hand (and Miller Lite ).

Thanks, I thought the result was pretty awesome. It seemed a shame to apply the AS3 afterwards.

Here's my work area for this project.



Mike

[Telexen]

hehe, you had scenery ... I had a sink

It does suck to mess up such a beautiful thing...but there still are microscopic scratches there so it needs it.

I attached the lapping I did on my DangerDen MAZE4 waterblock. I didn't want it to be perfect, but this isn't bad (I was anxious )

[Omardeth]

very nice job . well done indeed .

[Tazman]

I followed the guide I found from here .

I used 400, 600, 800, 1000, 1500, and finally, 2000.

I did it as suggested and went 10 swipes (back and forth), turned 90º, then another 10 swipes, stopping to add more water and dishsoap (and swig of beer ). I followed that procedure 10x for each grade of paper. Then finished with Mothers.

As a noob to lapping, I was kinda concerned about taking too much off the heat sink that it wouldn't sit tight on the board but I was way off there - still a bastard to attach .

I do have a question though. I have a new heat sink I just got from NewEgg with and aluminum / copper base (see here ) and I wondered what the affect of lapping would have on it being that it is constructed of two different metals?

Mike