Engraving Brass

[Tony Mac]

Below is the result of a design toolpathed using VCarve Wizard and engraved into brass on a Roland EGX 600.

The job is 50mm (2") diameter and was engraved using a 60 degree (included angle) cutter with a 0.2mm (0.008") Tip diameter. Spindle speed was 25,000 rpm and a feed rate of 2mm / sec (0.080" / sec).

The detail is 1.5mm (0.060") deep and this was engraved in multiple Z level passes of 0.25mm (0.010") per pass.

The material is free cutting brass and dosen't need any coolant or lubrication.

Engraving Video

(This may take a few moments to download)

Best Wishes to everyone for the New Year!

Tony Mac

[kram242]

That is really cool! Thanks for sharing it. Im close to getting a cnc machine built and post like these really keep me hyped to get it done.
Mark

[Mcgyver]

very nice, how long was the whole sequence?

[the_paco]

Nice part Tony!

Double side tape hold-down?... cutout first before engraving?...

[Tony Mac]

The job was engraved using the one cutter, so the stepovers had to be pretty small, and this took about 2 hours. I should really have used a larger tip diameter cutter to rough the job out then finish the detail with the 0.008" tip cutter. I guess the time could then be reduced to under 1 hour.

Well spotted Paco - Yes, I used double sided tape to hld the job down and it works really well. The main problem is actually getting the material off the table after machining, because it sticks so well!

Tony

[Jason Marsha]

Top video Tony! Keep them coming.


Jason

[dighsx]

Looks good Tony. Gives me some ideas for future projects.

[jdbaker]

Wow, this looks really great. Does anyone have a good source for some of that free cutting brass? I had never heard of that before but think it would be fun to use.

[automizer]

wow that is really cool thank you for the video. Hows that for a mess looks like you have brass all over the place, wouldn't having a coolent keep the dust and mess down to a min?

[rcazwillis]

Nice piece. Where do you get V bits such as the one in the video. I want to do some letters on a part I am making and am not having a lot of luck finding the cutters.

[Tony Mac]

Not sure if these suppliers may be any use,

http://www.2linc.com/engraving_tools.htm

http://www.bitsbits.net/index.php?ma...97ae10f0d328b5

http://www.gspinc.com/products/route...s_engrave.html


Tony

[rcazwillis]

The largest shank I see is 1/4". I have a HF mill with a MT2 taper. Is there a holder that will accept a 1/4" bit?