Full Version: Help with painted brass
From: Bill (BILL_S) [#9]
26 Mar 2007
To: John (ICTJOHN) [#8] 26 Mar 2007
John,
Being filled with self doubt after you and Mike said basically the same thing, I lasered another one. Started at 80p and 25s. I can adjust the settings on the fly so I usually engrave a rectangle and adjust the settings while engraving to see differences. On this run I ran the power up to 100 while holding the speed at 25 and then ran the speed down to 5 while holding the power at 100. Never got a good result.
I did see flame at all settings until I moved the speed below 10. Below that, the flame disappeared. But so did any economic incentive to do key chains :S .
These are key rings that are already fabricated -- not sheets -- so there is no marking on them at all. They are individually packed in reclosable bags that say "Made in Taiwan, R.O.C."
I will update my profile. It is 35 watts (but what is 5 watts among friends :D )
Bill
From: John (ICTJOHN) [#10]
26 Mar 2007
To: Bill (BILL_S) [#9] 26 Mar 2007
probably $1,000 - $2,000 :O)
Sorry, to hear they were not laserable.....
~
From: Harvey only (HARVEY-ONLY) [#11]
26 Mar 2007
To: Bill (BILL_S) [#9] 26 Mar 2007
It is almost impossible to laser off the clear coat. I have tried many low speed and high power passes but it hardly touches it.
If you can see fingerprint tarnish, it is not clear coated.
You can get it brighter by using the #2 Novis plastic cleaner. It is a super fine abrasive that works well. Then use a good wax to reduce future tarnish.
[I have to find a polish that still contains carnuba(sp?) wax.]
From: Bill (BILL_S) [#12]
26 Mar 2007
To: Harvey only (HARVEY-ONLY) [#11] 26 Mar 2007
Harvey,
Thanks for the tip. But I was planning on engraving about 150 key rings to have on hand and sale as "impulse" items when people saw them. If I needed to do one or two or three trophy plates -- or something similar -- it might be worth the extra effort to polish, wax, etc. But in this case if they can't be done "quick and dirty" it really isn't worth it. At least, not to me.
Bill