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I typically take my engraving needs to a local trophy shop. Decided it was time to try engraving myself on the CNC. The job was text on aluminum. I used Ucancam software to generate the gcode. The tool was a 1.0mm tapered ball nose bit. I took several practice runs to get the correct settings.
 

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Discussion Starter · #3 ·
The feed speed was dialed down. The spindle rpm was 15k. My only V-bit chipped in a practice run. So I switched to a tapered ball. I still have much to learn on the engraving side.
 

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Oliver (Prof. Henry)
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I have engraved brass using a v-bit. Your example of the success with a ball nose bit is something I need to try. You had great results.
 
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Ross
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G'day @Charlito , welcome to the forum..
 

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Hello, thanks for the greeting. Does anyone know if a CNC router can engrave the aluminum business card blanks, or are they more intended for laser engraving? I saw some that are 0.8 mm thick and it seems possible to engrave 0.5 mm deep and be ok, but then clamping it may be a challenge...
 

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Hello, thanks for the greeting. Does anyone know if a CNC router can engrave the aluminum business card blanks, or are they more intended for laser engraving? I saw some that are 0.8 mm thick and it seems possible to engrave 0.5 mm deep and be ok, but then clamping it may be a challenge...
Hey Charlito

Have no fear of challenges!

I sometimes take thin material to be engraved/routed, apply Application Tape (for vinyl graphics) to the backside and maybe on a piece of PVC (Sintra) scrap. Then Spray 77 glue them together to form a rigid piece.
If the 'scrap' piece is bigger you can clamp or screw down and do your thing.
Scraps can also be wood too, but working with signs we get alot of pvc. It's easier to bend
to get the finished piece off. Of course you'd have to be careful while separating.
Remember, I said bend the PVC, not the alum.

Since you're doing blanks, you could always make jigs like so esp for registration. Been there done that.
Just have to get creative sometimes.
 

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Have you ever tried windshield defrost spray instead of oil when cutting aluminum?
you would have to provide a lot more information on this product: as well as a photo of the product actually used.
 
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