v-carve engraving text with roughing passes
Hi, i would like to engrave text into a stainless steel plate so the letter is a female engraving in the plate, with all the material removed leaving detailed cutting lines in the back of the engraving from the small step over of the tool and angled sides to the internal text that is engraved.
I have done this before no problem and i used a 60 degree engraving cutter for the whole job with a 0.2mm stepover and due to the small tip and depth of cut i would step down meaning lots of passes but i need to speed this up.
so i would like to go in with a 6mm then 2mm end mill to clear all meat then finish with the 60 degree engraves tracing over the whole design in one pass so it finished the edges with the internal angle and the neat little step over lines at the back face.
the problem is that the area clear wipes out the meat needed for the angled edges...
does anyone know a way to sort this?
Comments
Hi just to add i used to use smart engrave to get the neat lines at the back but if i select rough tools then it takes away from these lines i.e the engraving cutter doesn't cover the back surface where the rough tools have been?
Ever think of using a ball end, and not going as deep as you want, then cleaning up with the v-cutter? You're using mm and to be honest it is very hard for me to get my head around that type of -------, never have been able to get that fixed in my head, but thanks to Google you're using for lack of a better word a quarter inch and a sixteenth endmills, there is another way also, you could use a little math, see where, at what depth your 6mm runs into the wall then stop just above that, then the same goes for the 2mm bit and start at the floor of the 6mm bit then at the end clean up with the v-grove cutter.
mike
Adrian, if I understand correctly, you want to leave an allowance on the bottom face? If so, have you tried sending two toolpaths to the CNC machine and simply lying about the bottom depth when setting up for the first roughing toolpath so it doesn't go as deep?
Hi thankyou for your responses I will investigate these option on the next job :-)
Hi Adrian, Carveco does exactly what you need from my understanding. This can all be done in one single smart engraving toolpath.
- Add the 3 tools you want to use to the Tools List from smallest to largest (ie, 6mm endmill, 2mm endmill, engraving tool)
- Click the "Offset end mills for engraving tools" check box.
- You can experiment with the "Vectors are on surface" checkbox depending on the result you are after.
Hope this helps.
i used a 60 degree it cuts to deep what to do help with setting please
thanks Rocmen
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