Copper Laps: The gem cutting industry's best kept secret.

[@aminoschikivar6387]

Thank you for the explanation. Good luck. I hope you make more videos. I support you

[@mray8519]

Thank you, well done, excellent presentation.

[@worlderrorcoins]

Hi,very thanks

[@naturebehindglass6512]

I've been wondering, if this kind of lap disc could be used to sharpen and polish very tiny carving and graving tools.... What is the general rule of thumb when using a metal lap disc and charging it with diamond paste? I have noticed that there a copper, bronze, zinc and aluminum readily available. Does the metal need to be softer for harder objects to polish or should the lap be harder as well for harder objects?

[@JustinKPrim]

Great video!

[@rhondajones1313]

Sweet Thank you big time for this video

[@worlderrorcoins]

Very good

[@Spuce_Doofus]

with copper I always get 90% through polish and they it scratches. I don't have this issue with wood laps, & I they don't take 8 business days to prep and maintain.

[@gemsbyjohnny]

Over time I came to the conclusion that copper is a good medium for a cutting lap, for sure. As a polishing lap it shines at first but over time it picks up bits of material and causes scratching, much like you've experienced.

[@bernardthongvanh5613]

steel roller are cheaper than corrundum on kingsleynorth, just bought some, thanks for the video

[@gemsbyjohnny]

Happy to help!

[@glennhassig6668]

Great job

[@thedisruptiveedge1861]

Is there a cleaning paste that you can use for alloy, stainless and zinc laps?

[@Hedbrant2]

I'm new to all this. So basically I use the diamond paste of whatever grit I want on that particular polishing lap, and then I always stick with the same grit on that lap?

[@gemsbyjohnny]

Yes. Once the diamond has embedded itself, there is no way to remove it from the lap unless you resurface it. Stick to the same grit. You can use coarser grit diamond on that lap if you want to convert your lap to that grit exclusively for some reason in the future.

[@rothery2]

I've got a couple of copper laps that I need to charge. But every time I try I get this horrendous screeching harmonic. Any recommendations for dealing with that? or should I just scrap these ones and get replacements?

[@siavashsoltani4813]

Hi do you have any link to get one ?

[@gemsbyjohnny]

My copper laps were ordered from here: lapidarygrinder.com/products/8x1-2-lapidary-glass-flat-lap-ginder-copper-flat-polishing-lap

[@siavashsoltani4813]

@@gemsbyjohnny thx ,do you know how can I used it for frosted edges with copper lab ? All the copper lab are same or not ?

[@YukonJack]

​@@gemsbyjohnnyI see the lap is about $43. I don't have any laps and I'm curious if the time, effort, and cost of this is better than buying a factory lap. Thank you.

[@edperry8260]

I used them for over 50 years, then I made them, then I moved on to something better.

[@fabiancurto6484]

What do you think is better ?