Manny
Member
I have been getting cloudy spots on DIW. Here is what i did to stop it.
1) Sanded to 400
2) Micro Mesh to 12000
3) Acetone wipe while turning
4) Accelerator wipe while turning (Let dry)
(Critical) Turn the lathe all the way down
5) Small puddle of heavy CA on a paper towel
6) Wipe pen back and forth slowly make sure whole pen is covered. Pull away BEFORE CA starts to harden.
7) Spray accelerator and wipe with clean paper towel.
Repeat steps 5-6 as many times as you like I did 4
8) Lathe still on slow - 1500 Micro Mesh smooth Must make sure all swirl marks and pitting are gone. I use the next finer grit on the blank then stop the lathe and inspect under the light. If I see any pits or swirls I hand sand them lightly with 1500MM. (might be able to use 400 grit to go faster)
9) Once you get all the ridges and swirl marks down I move on through to 12K
10) Apply Brasso let dry and wide off with lathe on high
Key for me was reducing heat generation.
Let me know if anyone thinks any of these steps are redundent
Thanks, Manny
1) Sanded to 400
2) Micro Mesh to 12000
3) Acetone wipe while turning
4) Accelerator wipe while turning (Let dry)
(Critical) Turn the lathe all the way down
5) Small puddle of heavy CA on a paper towel
6) Wipe pen back and forth slowly make sure whole pen is covered. Pull away BEFORE CA starts to harden.
7) Spray accelerator and wipe with clean paper towel.
Repeat steps 5-6 as many times as you like I did 4
8) Lathe still on slow - 1500 Micro Mesh smooth Must make sure all swirl marks and pitting are gone. I use the next finer grit on the blank then stop the lathe and inspect under the light. If I see any pits or swirls I hand sand them lightly with 1500MM. (might be able to use 400 grit to go faster)
9) Once you get all the ridges and swirl marks down I move on through to 12K
10) Apply Brasso let dry and wide off with lathe on high
Key for me was reducing heat generation.
Let me know if anyone thinks any of these steps are redundent
Thanks, Manny