I’ve been wanting to try some Drag engraving, and just wanted to point out these cheaper Diamond Drag engraving bits On Ebay
I’ve ordered the 6mm 60° bit, which has 2 springs for soft and hard material, and also ordered a spare tip. It came to about US$40 with free international shipping.
Hoping the quality is decent, I can’t justify spending $130 on one just yet.
Let us know how they are. From the little I have researched, the cheaper ones are fine for soft material, but wear out quick on hard stuff like glass. It would be nice to see a real “review” on how they really hold up. Like you, I want to try these, but $130 can be spent on needier things at the moment.
I bought a chep one from e-bay, I forget the exact price, it had a holder 3 diamond bits of various angles. I used only the 90 deg so far but the results are excellent.Here is an example.
I used VCarve Pro for the toolpaths.
That looks great! Is the material flooring tile?
That did come out great, if I can manage results like that I’ll be very happy.
I’d mostly like to do acrylic, stone/tile and maybe aluminium. Hopefully these cheaper bits last. They are made in Austria so I am hoping the quality is pretty decent
Yes, our Home Depot stocks 12"X12" granite black tiles and white marble at reasonable price. I also found slate somewhere else but I have not tried it yet.
Mine has just shown up, what feeds and speeds do you find work well? I’m starting on aluminium, but want to do some tiles too
Here is what I use for granite, it should be a start for Aluminum too, I think I used the same but don’t have the info on hand. Of course the spindle speed is 0 and the pressure is 0.125in.
Awesome thank you, this is my first run at aluminium, with settings of:
Feed - 2000mm/min / 500 plunge
Line width - 0.2mm
Stepover - 0.4mm (12%)
45 degree cross hatch
1mm depth/pressure
Pretty happy with results, it’s hard to capture on camera
Looks pretty good so far, I ordered a spare insert for it too. Definitely on the cheaper end of the options, but it works well on aly so far, trying out some Acrylic at the moment
Acrylic worked well too… I just winged it and turned out pretty well! Steel next
Feed - 2500mm/min / 500 plunge
Line width - 0.1mm
Stepover - 0.25mm
45 degree cross hatch
0.5mm depth/pressure
And steel:
Feed - 2000mm/min / 500 plunge
Line width - 0.3mm
Stepover - 0.3mm
45 degree cross hatch
1.5mm depth/pressure
Geez, mom better take the kids before you start engraving them too! 
Looks like good tests on different materials.
Has anyone hooked a tattoo gun up to a CNC yet? 
Haha, I was walking around the shed looking for different things to engrave…
I actually picked up a used surface pro 3, and instead of walking back to the house to the computer to create gcode, put it on USB, then walk back, I now have vectric aspire in the shed… it’s so much quicker to try things out!
I’m really happy with the engraving bit, it opens up a lot of opportunities for projects
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